<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>As filed with the Securities and Exchange Commission
on July&nbsp;2, 2025&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Registration No.&nbsp;333-</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 12pt; margin-bottom: 3pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
WASHINGTON, D.C. 20549<BR></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 3pt auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM&nbsp;S-8</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>REGISTRATION STATEMENT<BR>
UNDER<BR>
THE SECURITIES ACT OF 1933</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>RIBBON COMMUNICATIONS INC.&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact Name of Registrant as Specified in Its Charter)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: bottom; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Delaware</B></FONT></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(State or Other Jurisdiction of Incorporation or Organization)</FONT></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: bottom; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>82-1669692</B></FONT></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(I.R.S. Employer Identification No.)</FONT></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: bottom">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>6500 Chase Oaks Boulevard, Suite&nbsp;100</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Plano, Texas</B></P></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Address of Principal Executive Offices)</FONT></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: bottom; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>75023</B></FONT></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Zip Code)</FONT></TD>
    </TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>RIBBON COMMUNICATIONS INC. 2025 INCENTIVE AWARD
PLAN<BR>
</B>(Full Title of the Plan)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Patrick W. Macken&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Executive Vice President, Chief Legal Officer
and Corporate Secretary&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>6500 Chase Oaks Boulevard, Suite&nbsp;100&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Plano, Texas 75023&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Name and Address of Agent for Service)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(978) 614-8100<BR>
</B>(Telephone Number,&nbsp;Including Area Code, of Agent for Service)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">With a copy to:<BR>
<B>David W. Ghegan,&nbsp;Esq.<BR>
Troutman Pepper Locke LLP&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>600 Peachtree Street, N.E.&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Suite&nbsp;3000&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Atlanta, Georgia 30308&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(404)&nbsp;885-3139<BR></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 3pt auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of
 &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo; &ldquo;smaller reporting company&rdquo; and &ldquo;emerging growth
company&rdquo; in Rule&nbsp;12b-2 of the Exchange Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 38%; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Large accelerated filer</FONT></TD>
    <TD STYLE="width: 5%; font-size: 10pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&#168;</FONT></TD>
    <TD STYLE="width: 50%; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accelerated filer</FONT></TD>
    <TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 5%; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#120;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Non-accelerated filer</FONT></TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Smaller reporting company</FONT></TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Emerging growth company</FONT></TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section&nbsp;7(a)(2)(B)&nbsp;of the Securities Act. &#9744;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 3pt; margin-bottom: 12pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid; border-bottom: Black 2pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 1 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B>Part&nbsp;i</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B>information
required in the section 10(</B></FONT><B>a)&nbsp;PROSPECTUS</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 1. PLAN INFORMATION.*</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 2. REGISTRANT INFORMATION AND EMPLOYEE PLAN ANNUAL INFORMATION.*</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">* The document(s)&nbsp;containing the information specified in Part&nbsp;I
of Form&nbsp;S-8 will be sent or given to participants in the Ribbon Communications Inc. 2025 Incentive Award Plan (the &ldquo;Plan&rdquo;)
pursuant to Rule&nbsp;428(b)(1)&nbsp;under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;). In accordance with
Rule&nbsp;428 and the requirements of Part&nbsp;I of Form&nbsp;S-8, such documents are not being filed with the Securities and Exchange
Commission (the &ldquo;Commission&rdquo;) either as part of this Registration Statement or as prospectuses or prospectus supplements pursuant
to Rule&nbsp;424 under the Securities Act. Such documents and documents incorporated by reference in this Registration Statement pursuant
to Item 3 of Part&nbsp;II of this Form&nbsp;S-8, taken together, constitute a prospectus that meets the requirements of Section&nbsp;10(a)&nbsp;of
the Securities Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B>Part&nbsp;II</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B>INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Ribbon Communications Inc. (the &ldquo;Registrant&rdquo;) hereby incorporates
by reference into this Registration Statement the following documents previously filed with the Commission:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>The Registrant&rsquo;s <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/0001708055/000155837025001773/tmb-20241231x10k.htm" STYLE="-sec-extract: exhibit">Annual Report on Form&nbsp;10-K for the fiscal year ended December&nbsp;31, 2024, filed with the Commission on February&nbsp;27, 2025</A>;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>The information specifically incorporated by reference into the Registrant&rsquo;s Annual Report on Form&nbsp;10-K for the year ended
December&nbsp;31, 2024 from its <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1708055/000110465925034540/tm252569-3_def14a.htm" STYLE="-sec-extract: exhibit">Definitive Proxy Statement on Schedule 14A, filed with the Commission on April&nbsp;14, 2025</A>;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in">(3)</TD><TD>The Registrant&rsquo;s Quarterly Report on Form&nbsp;10-Q for the fiscal quarter ended March&nbsp;31, 2025, filed with the Commission on <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/0001708055/000170805525000003/tmb-20250331x10q.htm" STYLE="-sec-extract: exhibit">April&nbsp;30, 2025</A>;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in">(4)</TD><TD>The Registrant&rsquo;s Current Report on Form&nbsp;8-K filed with the Commission on <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1708055/000110465925054927/tm2516554d1_8k.htm" STYLE="-sec-extract: exhibit">May&nbsp;30, 2025</A>; and</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in">(5)</TD><TD>The description of the Registrant&rsquo;s Common Stock, contained in <A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000155837025001773/tmb-20241231xex4d1.htm" STYLE="-sec-extract: exhibit">Exhibit&nbsp;4.1</A> to the <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/0001708055/000155837025001773/tmb-20241231x10k.htm" STYLE="-sec-extract: exhibit">Registrant&rsquo;s Annual Report on Form&nbsp;10-K for the fiscal year ended December&nbsp;31, 2024, filed with the Commission on February&nbsp;27, 2025</A>, which updates the description of
the Registrant&rsquo;s common stock contained in the Registrant&rsquo;s Registration Statement on <A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465923041613/tm2311172-1_s3.htm" STYLE="-sec-extract: exhibit">Form&nbsp;S-3, filed with the Commission on April&nbsp;4, 2023</A>, including any amendment or report filed for the purpose of updating such description.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">All documents subsequently filed by the Registrant pursuant to Sections
13(a), 13(c), 14 and 15(d)&nbsp;of the Securities Exchange Act of 1934, as amended (the &ldquo;Exchange Act&rdquo;), prior to the filing
of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then
remaining unsold, shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date
of filing of such documents; provided, however, that documents or information deemed to have been furnished and not filed in accordance
with Commission rules&nbsp;shall not be deemed incorporated by reference into this Registration Statement. Any statement contained herein
or in a document, all or a portion of which is incorporated or deemed to be incorporated by reference herein, shall be deemed to be modified
or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently
filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement
so modified or superseded shall not be deemed, except as so modified or amended, to constitute a part of this Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 4. DESCRIPTION OF SECURITIES.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Company is governed by the General Corporation Law of the State
of Delaware, or the DGCL. Section&nbsp;102 of the DGCL permits a corporation to eliminate the personal liability of directors and certain
officers of a corporation to the corporation or its stockholders for monetary damages for a breach of fiduciary duty as a director or
applicable officer, except where the director or officer breached his or her duty of loyalty, failed to act in good faith, engaged in
intentional misconduct or knowingly violated a law, obtained an improper personal benefit, with respect to directors, authorized the payment
of a dividend or approved a stock repurchase in violation of Delaware corporate law or, with respect to officers, an action is by or in
the right of the corporation. The Company&rsquo;s Restated Certificate of Incorporation, as amended (the &ldquo;Certificate of Incorporation&rdquo;),
provides that no director or applicable officer of the Company shall be personally liable to the Company or its stockholders for monetary
damages for any breach of fiduciary duty as director, notwithstanding any provision of law imposing such liability, except to the extent
that applicable law prohibits the elimination or limitation of liability of directors for breaches of fiduciary duty.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Section&nbsp;145 of the DGCL provides that a corporation may indemnify
any person, including an officer or director, who was or is, or is threatened to be made, a party to any threatened, pending or completed
legal action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of
such corporation), by reason of the fact that such person was or is an officer, director, employee or agent of such corporation or is
or was serving at the request of such corporation as a director, officer, employee or agent of another corporation or enterprise. The
indemnity may include expenses (including attorneys&rsquo; fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by such person in connection with such action, suit or proceeding, provided such officer, director, employee or agent acted in
good faith and in a manner such person reasonably believed to be in, or not opposed to, the corporation&rsquo;s best interest and, for
criminal proceedings, had no reasonable cause to believe that such person&rsquo;s conduct was unlawful. A Delaware corporation may indemnify
any person, including an officer or director, who was or is, or is threatened to be made, a party to any threatened, pending or contemplated
action or suit by or in the right of such corporation, under the same conditions, except that such indemnification is limited to expenses
(including attorneys&rsquo; fees) actually and reasonably incurred by such person, and except that no indemnification is permitted without
judicial approval if such person is adjudged to be liable to such corporation. Where an officer or director of a corporation is successful,
on the merits or otherwise, in the defense of any action, suit or proceeding referred to above, or any claim, issue or matter therein,
the corporation must indemnify that person against the expenses (including attorneys&rsquo; fees) which such officer or director actually
and reasonably incurred in connection therewith.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Certificate of Incorporation provides that the Company&rsquo;s
directors and officers are to be indemnified by the Company to the fullest extent permitted by Section&nbsp;145 of the DGCL, against all
expense, liability and loss (including attorneys&rsquo; fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement)
reasonably incurred or suffered by such person in connection with such action, suit or proceeding and any appeal therefrom, and such indemnification
shall continue as to an indemnitee who has ceased to be a director, trustee, officer, employee or agent.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Company&rsquo;s Amended and Restated By-Laws (the &ldquo;By-Laws&rdquo;)
provide that the Company shall indemnify, to the fullest extent permitted by applicable law, as the same exists or may be amended, any
person who was or is made a party or is threatened to be made a party to or is otherwise involved in any action, suit or proceeding, whether
civil, criminal, administrative or investigative, by reason of being or having been a director or officer of the Company; or while a director
or officer of the Company, serving or having served at our request as a director, trustee, officer, employee or agent of another corporation
or of a partnership, joint venture, trust or other enterprise, including service with respect to an employee benefit plan, against all
expense, liability and loss (including attorneys&rsquo; fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement)
reasonably incurred or suffered by such indemnitee in connection therewith.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 3 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The By-Laws further provide that the right to indemnification shall
include the right to be paid by the Company the expenses (including attorneys&rsquo; fees) incurred in defending any such proceeding in
advance of its final disposition; provided, however, that, to the extent required by law, such advancement of expenses shall be made only
upon our receipt of an undertaking, by or on behalf of such indemnitee, to repay all amounts so advanced if it shall ultimately be determined
by final judicial decision from which there is no further right to appeal that such indemnitee is not entitled to be indemnified for such
expenses under the By-Laws or otherwise.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Company may, but is not obligated to, purchase and maintain insurance
at its expense on behalf of any such person.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 8. EXHIBITS.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="background-color: white">
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; width: 15%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit&nbsp;Number</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 2%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: top; width: 83%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Description</B></FONT></TD>
    </TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465917064455/a17-24632_1ex3d2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.1</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465917064455/a17-24632_1ex3d2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit&nbsp;3.2 to the Registrant&rsquo;s Current Report on Form&nbsp;8-K12B, filed October&nbsp;30, 2017 with the SEC).</FONT></A></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465917070729/a17-27586_1ex3d1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.2</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465917070729/a17-27586_1ex3d1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certificate of Amendment of the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit&nbsp;3.1 to the Registrant&rsquo;s Current Report on Form&nbsp;8-K, filed November&nbsp;28, 2017 with the SEC).</FONT></A></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465923087871/tm2322779d1_ex3-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.3</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465923087871/tm2322779d1_ex3-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Second Certificate of Amendment to the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit&nbsp;3.1 to the Registrant&rsquo;s Current Report on Form&nbsp;8-K, filed August&nbsp;4, 2023 with the SEC).</FONT></A></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465925054927/tm2516554d1_ex3-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.4</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465925054927/tm2516554d1_ex3-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certificate of Amendment to the Registrant&rsquo;s Restated Certificate of Incorporation, effective as of May&nbsp;29, 2025 (incorporated by reference to Exhibit&nbsp;3.1 to the Registrant&rsquo;s Current Report on Form&nbsp;8-K, filed May&nbsp;30, 2025 with the SEC). </FONT></A></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000162828018002933/rbbn-ex3320171231.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.5</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000162828018002933/rbbn-ex3320171231.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amended and Restated By-Laws of the Registrant (incorporated by reference to Exhibit&nbsp;3.3 to the Registrant&rsquo;s Annual Report on Form&nbsp;10-K, filed March&nbsp;8, 2018 with the SEC).</FONT></A></TD>
    </TR>
  <TR STYLE="background-color: white">
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><A HREF="tm2518789d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1*</FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="tm2518789d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Opinion of Troutman Pepper Locke LLP.</FONT></A></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><A HREF="tm2518789d1_ex23-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.1*</FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="tm2518789d1_ex23-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of Independent Registered Public Accounting Firm, Deloitte&nbsp;&amp; Touche LLP.</FONT></A></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><A HREF="tm2518789d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.2*</FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="tm2518789d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of Troutman Pepper Locke LLP (included in Exhibit&nbsp;5.1 hereto).</FONT></A></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><A HREF="#a_001" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24.1*</FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="#a_001" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Power of Attorney (contained on signature page&nbsp;hereto).</FONT></A></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465925034540/tm252569-3_def14a.htm#tAPC" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1</FONT></A></TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD><A HREF="https://www.sec.gov/Archives/edgar/data/1708055/000110465925034540/tm252569-3_def14a.htm#tAPC" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ribbon Communications Inc. 2025 Incentive Award Plan (incorporated by reference to Appendix C to the Registrant&rsquo;s Definitive Proxy Statement filed April&nbsp;14, 2025 with the SEC).</FONT></A></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><A HREF="tm2518789d1_ex-filingfees.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">107.1*</FONT></A></TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD><A HREF="tm2518789d1_ex-filingfees.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Filing Fee Table.</FONT></A></TD>
    </TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: white">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*Filed Herewith</FONT></TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD>&nbsp;</TD>
    </TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 4 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 9. UNDERTAKINGS.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a)&nbsp;The undersigned Registrant hereby undertakes:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in">(1)&nbsp;To file, during any period in which offers or sales
are being made, a post-effective amendment to this Registration Statement:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.5in">(i)&nbsp;To include any prospectus required
by Section&nbsp;10(a)(3)&nbsp;of the Securities Act;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in">(ii)&nbsp;To reflect in the prospectus any facts or events
arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which, individually
or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing,
any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which
was registered) and nay deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus
filed with the Commission pursuant to Rule&nbsp;424(b)&nbsp;if, in the aggregate, the changes in volume and price represent no more than
20% change in the maximum aggregate offering price set forth in the &ldquo;Calculation of Filing Fee Tables&rdquo; or &ldquo;Calculation
of Registration Fee&rdquo; table, as applicable in the effective registration statement; and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in">(iii)&nbsp;To include any material information with respect
to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in the Registration
Statement;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><I>Provided, however</I>, that:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in">Paragraphs (a)(1)(i)&nbsp;and (a)(1)(ii)&nbsp;of this section
do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed
with or furnished to the Commission by the Registrant pursuant to Section&nbsp;13 or Section&nbsp;15(d)&nbsp;of the Exchange Act that
are incorporated by reference in the Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in">(2)&nbsp;That, for the purpose of determining any liability
under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in">(3)&nbsp;To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the termination of the offering.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b)&nbsp;The undersigned Registrant hereby undertakes that, for purposes
of determining any liability under the Securities Act, each filing of the Registrant&rsquo;s annual report pursuant to Section&nbsp;13(a)&nbsp;or
Section&nbsp;15(d)&nbsp;of the Exchange Act (and, where applicable, each filing of an employee benefit plan&rsquo;s annual report pursuant
to Section&nbsp;15(d)&nbsp;of the Exchange Act) that is incorporated by reference in the Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(h)&nbsp;Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to applicable law, the Registrant&rsquo;s
Articles of Incorporation, as such may be amended from time to time, the Registrant&rsquo;s Bylaws or the Registrant&rsquo;s indemnification
agreements or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public
policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the
Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 5 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B>SIGNATURES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">Pursuant to the requirements of the Securities
Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form&nbsp;S-8
and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Plano, Texas on July&nbsp;2, 2025.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>RIBBON COMMUNICATIONS INC.</B></FONT></TD>
    </TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    </TR>
  <TR>
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; vertical-align: top; width: 47%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Bruce W. McClelland</FONT></TD>
    </TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: Bruce W. McClelland</FONT></TD>
    </TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: President, Chief Executive Officer&nbsp;&amp; Director</FONT></TD>
    </TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<!-- Field: Page; Sequence: 6 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B><A NAME="a_001"></A>POWER
OF ATTORNEY</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">KNOWN ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Bruce McClelland and Patrick W. Macken as his or her true and lawful attorneys-in-fact and agents,
with full power of substitute, for him or her and in his or her name, place and stead, in any and all capacities to sign this Registration
Statement and any and all amendments thereto (including post-effective amendments), and to file the same, with all exhibits thereto, and
all other documents in connection therewith, with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full
power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully
to all intents and purposes as they, he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact
and agents or any of them, or their, his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Act of 1933, as amended,
this registration statement on Form&nbsp;S-8 and Power of Attorney have been signed by the following persons in the capacity and on the
dates indicated.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; width: 30%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Signature</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%">&nbsp;</TD>
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Title(s)</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%">&nbsp;</TD>
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center; width: 28%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Date</B></FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Bruce W. McClelland</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">President, Chief Executive Officer and Director</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Bruce W. McClelland</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top"> (Principal Executive Officer)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ John Townsend</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">Executive Vice President, Chief Financial Officer </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">John Townsend</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">(Principal Financial Officer)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Eric Marmurek</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">Senior Vice President and Deputy Chief Financial Officer </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Eric Marmurek</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">(Principal Accounting Officer)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ R. Stewart Ewing,&nbsp;Jr.</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">R. Stewart Ewing,&nbsp;Jr.</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Bruns H. Grayson</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Bruns H. Grayson</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Beatriz V. Infante</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Beatriz V. Infante</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Scott Mair</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Scott Mair</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Shaul Shani</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Shaul Shani</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Richard W. Smith</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Richard W. Smith</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top">/s/ Tanya Tamone</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July&nbsp;2, 2025</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Tanya Tamone</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
<TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 7; Options: Last -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

</BODY>
</HTML>
[{"type": "S-8", "sequence": "1", "filename": "tm2518789d1_s8.htm", "description": "FORM S-8", "secsgml_size_bytes": 69293}]
{"company-data": {"conformed-name": "Ribbon Communications Inc.", "cik": "0001708055", "assigned-sic": "7373", "organization-name": "06 Technology", "ein": "821669692", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-288488", "film-number": "251101073"}, "business-address": {"street1": "6500 CHASE OAKS BOULEVARD", "city": "PLANO", "state": "TX", "zip": "75023", "phone": "877-412-8867"}, "mail-address": {"street1": "6500 CHASE OAKS BOULEVARD", "city": "PLANO", "state": "TX", "zip": "75023"}, "former-company": [{"former-conformed-name": "Sonus Networks, Inc.", "date-changed": "20171027"}, {"former-conformed-name": "Solstice Sapphire Investments, Inc.", "date-changed": "20170531"}]}
As filed with the Securities and Exchange Commission
on July 2, 2025
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
RIBBON COMMUNICATIONS INC.
(Exact Name of Registrant as Specified in Its Charter)
Delaware
(State or Other Jurisdiction of Incorporation or Organization)
82-1669692
(I.R.S. Employer Identification No.)
6500 Chase Oaks Boulevard, Suite 100
Plano, Texas
(Address of Principal Executive Offices)
75023
(Zip Code)
RIBBON COMMUNICATIONS INC. 2025 INCENTIVE AWARD
PLAN
(Full Title of the Plan)
Patrick W. Macken
Executive Vice President, Chief Legal Officer
and Corporate Secretary
6500 Chase Oaks Boulevard, Suite 100
Plano, Texas 75023
(Name and Address of Agent for Service)
(978) 614-8100
(Telephone Number, Including Area Code, of Agent for Service)
With a copy to:
David W. Ghegan, Esq.
Troutman Pepper Locke LLP
600 Peachtree Street, N.E.
Suite 3000
Atlanta, Georgia 30308
(404) 885-3139
Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of
 "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth
company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
¨
Accelerated filer
x
Non-accelerated filer
¨
Smaller reporting company
¨
Emerging growth company
¨
If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 7(a)(2)(B) of the Securities Act. ☐
Part i
information
required in the section 10(
a) PROSPECTUS
ITEM 1. PLAN INFORMATION.*
ITEM 2. REGISTRANT INFORMATION AND EMPLOYEE PLAN ANNUAL INFORMATION.*
* The document(s) containing the information specified in Part I
of Form S-8 will be sent or given to participants in the Ribbon Communications Inc. 2025 Incentive Award Plan (the "Plan")
pursuant to Rule 428(b)(1) under the Securities Act of 1933, as amended (the "Securities Act"). In accordance with
Rule 428 and the requirements of Part I of Form S-8, such documents are not being filed with the Securities and Exchange
Commission (the "Commission") either as part of this Registration Statement or as prospectuses or prospectus supplements pursuant
to Rule 424 under the Securities Act. Such documents and documents incorporated by reference in this Registration Statement pursuant
to Item 3 of Part II of this Form S-8, taken together, constitute a prospectus that meets the requirements of Section 10(a) of
the Securities Act.
Part II
INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT
ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.
Ribbon Communications Inc. (the "Registrant") hereby incorporates
by reference into this Registration Statement the following documents previously filed with the Commission:
(1)
The Registrant's
Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the Commission on February 27, 2025
;
(2)
The information specifically incorporated by reference into the Registrant's Annual Report on Form 10-K for the year ended
December 31, 2024 from its
Definitive Proxy Statement on Schedule 14A, filed with the Commission on April 14, 2025
;
(3)
The Registrant's Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2025, filed with the Commission on
April 30, 2025
;
(4)
The Registrant's Current Report on Form 8-K filed with the Commission on
May 30, 2025
; and
(5)
The description of the Registrant's Common Stock, contained in
Exhibit 4.1
to the
Registrant's Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the Commission on February 27, 2025
, which updates the description of
the Registrant's common stock contained in the Registrant's Registration Statement on
Form S-3, filed with the Commission on April 4, 2023
, including any amendment or report filed for the purpose of updating such description.
All documents subsequently filed by the Registrant pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), prior to the filing
of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then
remaining unsold, shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date
of filing of such documents; provided, however, that documents or information deemed to have been furnished and not filed in accordance
with Commission rules shall not be deemed incorporated by reference into this Registration Statement. Any statement contained herein
or in a document, all or a portion of which is incorporated or deemed to be incorporated by reference herein, shall be deemed to be modified
or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently
filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement
so modified or superseded shall not be deemed, except as so modified or amended, to constitute a part of this Registration Statement.
ITEM 4. DESCRIPTION OF SECURITIES.
Not applicable.
ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL.
Not applicable.
ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
The Company is governed by the General Corporation Law of the State
of Delaware, or the DGCL. Section 102 of the DGCL permits a corporation to eliminate the personal liability of directors and certain
officers of a corporation to the corporation or its stockholders for monetary damages for a breach of fiduciary duty as a director or
applicable officer, except where the director or officer breached his or her duty of loyalty, failed to act in good faith, engaged in
intentional misconduct or knowingly violated a law, obtained an improper personal benefit, with respect to directors, authorized the payment
of a dividend or approved a stock repurchase in violation of Delaware corporate law or, with respect to officers, an action is by or in
the right of the corporation. The Company's Restated Certificate of Incorporation, as amended (the "Certificate of Incorporation"),
provides that no director or applicable officer of the Company shall be personally liable to the Company or its stockholders for monetary
damages for any breach of fiduciary duty as director, notwithstanding any provision of law imposing such liability, except to the extent
that applicable law prohibits the elimination or limitation of liability of directors for breaches of fiduciary duty.
Section 145 of the DGCL provides that a corporation may indemnify
any person, including an officer or director, who was or is, or is threatened to be made, a party to any threatened, pending or completed
legal action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of
such corporation), by reason of the fact that such person was or is an officer, director, employee or agent of such corporation or is
or was serving at the request of such corporation as a director, officer, employee or agent of another corporation or enterprise. The
indemnity may include expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by such person in connection with such action, suit or proceeding, provided such officer, director, employee or agent acted in
good faith and in a manner such person reasonably believed to be in, or not opposed to, the corporation's best interest and, for
criminal proceedings, had no reasonable cause to believe that such person's conduct was unlawful. A Delaware corporation may indemnify
any person, including an officer or director, who was or is, or is threatened to be made, a party to any threatened, pending or contemplated
action or suit by or in the right of such corporation, under the same conditions, except that such indemnification is limited to expenses
(including attorneys' fees) actually and reasonably incurred by such person, and except that no indemnification is permitted without
judicial approval if such person is adjudged to be liable to such corporation. Where an officer or director of a corporation is successful,
on the merits or otherwise, in the defense of any action, suit or proceeding referred to above, or any claim, issue or matter therein,
the corporation must indemnify that person against the expenses (including attorneys' fees) which such officer or director actually
and reasonably incurred in connection therewith.
The Certificate of Incorporation provides that the Company's
directors and officers are to be indemnified by the Company to the fullest extent permitted by Section 145 of the DGCL, against all
expense, liability and loss (including attorneys' fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement)
reasonably incurred or suffered by such person in connection with such action, suit or proceeding and any appeal therefrom, and such indemnification
shall continue as to an indemnitee who has ceased to be a director, trustee, officer, employee or agent.
The Company's Amended and Restated By-Laws (the "By-Laws")
provide that the Company shall indemnify, to the fullest extent permitted by applicable law, as the same exists or may be amended, any
person who was or is made a party or is threatened to be made a party to or is otherwise involved in any action, suit or proceeding, whether
civil, criminal, administrative or investigative, by reason of being or having been a director or officer of the Company; or while a director
or officer of the Company, serving or having served at our request as a director, trustee, officer, employee or agent of another corporation
or of a partnership, joint venture, trust or other enterprise, including service with respect to an employee benefit plan, against all
expense, liability and loss (including attorneys' fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement)
reasonably incurred or suffered by such indemnitee in connection therewith.
The By-Laws further provide that the right to indemnification shall
include the right to be paid by the Company the expenses (including attorneys' fees) incurred in defending any such proceeding in
advance of its final disposition; provided, however, that, to the extent required by law, such advancement of expenses shall be made only
upon our receipt of an undertaking, by or on behalf of such indemnitee, to repay all amounts so advanced if it shall ultimately be determined
by final judicial decision from which there is no further right to appeal that such indemnitee is not entitled to be indemnified for such
expenses under the By-Laws or otherwise.
The Company may, but is not obligated to, purchase and maintain insurance
at its expense on behalf of any such person.
ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED.
Not applicable.
ITEM 8. EXHIBITS.
Exhibit Number
Description
4.1
Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.2 to the Registrant's Current Report on Form 8-K12B, filed October 30, 2017 with the SEC).
4.2
Certificate of Amendment of the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed November 28, 2017 with the SEC).
4.3
Second Certificate of Amendment to the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed August 4, 2023 with the SEC).
4.4
Certificate of Amendment to the Registrant's Restated Certificate of Incorporation, effective as of May 29, 2025 (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed May 30, 2025 with the SEC).
4.5
Amended and Restated By-Laws of the Registrant (incorporated by reference to Exhibit 3.3 to the Registrant's Annual Report on Form 10-K, filed March 8, 2018 with the SEC).
5.1*
Opinion of Troutman Pepper Locke LLP.
23.1*
Consent of Independent Registered Public Accounting Firm, Deloitte & Touche LLP.
23.2*
Consent of Troutman Pepper Locke LLP (included in Exhibit 5.1 hereto).
24.1*
Power of Attorney (contained on signature page hereto).
99.1
Ribbon Communications Inc. 2025 Incentive Award Plan (incorporated by reference to Appendix C to the Registrant's Definitive Proxy Statement filed April 14, 2025 with the SEC).
107.1*
Filing Fee Table.
*Filed Herewith
ITEM 9. UNDERTAKINGS.
(a) The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers or sales
are being made, a post-effective amendment to this Registration Statement:
(i) To include any prospectus required
by Section 10(a)(3) of the Securities Act;
(ii) To reflect in the prospectus any facts or events
arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which, individually
or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing,
any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which
was registered) and nay deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus
filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than
20% change in the maximum aggregate offering price set forth in the "Calculation of Filing Fee Tables" or "Calculation
of Registration Fee" table, as applicable in the effective registration statement; and
(iii) To include any material information with respect
to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in the Registration
Statement;
Provided, however
, that:
Paragraphs (a)(1)(i) and (a)(1)(ii) of this section
do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed
with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that
are incorporated by reference in the Registration Statement.
(2) That, for the purpose of determining any liability
under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(3) To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the termination of the offering.
(b) The undersigned Registrant hereby undertakes that, for purposes
of determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a) or
Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant
to Section 15(d) of the Exchange Act) that is incorporated by reference in the Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
(h) Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to applicable law, the Registrant's
Articles of Incorporation, as such may be amended from time to time, the Registrant's Bylaws or the Registrant's indemnification
agreements or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public
policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the
Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
SIGNATURES
Pursuant to the requirements of the Securities
Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8
and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Plano, Texas on July 2, 2025.
RIBBON COMMUNICATIONS INC.
By:
/s/ Bruce W. McClelland
Name: Bruce W. McClelland
Title: President, Chief Executive Officer & Director
POWER
OF ATTORNEY
KNOWN ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Bruce McClelland and Patrick W. Macken as his or her true and lawful attorneys-in-fact and agents,
with full power of substitute, for him or her and in his or her name, place and stead, in any and all capacities to sign this Registration
Statement and any and all amendments thereto (including post-effective amendments), and to file the same, with all exhibits thereto, and
all other documents in connection therewith, with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full
power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully
to all intents and purposes as they, he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact
and agents or any of them, or their, his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, as amended,
this registration statement on Form S-8 and Power of Attorney have been signed by the following persons in the capacity and on the
dates indicated.
Signature
Title(s)
Date
/s/ Bruce W. McClelland
President, Chief Executive Officer and Director
July 2 2025
Bruce W. McClelland
(Principal Executive Officer)
/s/ John Townsend
Executive Vice President, Chief Financial Officer
July 2, 2025
John Townsend
(Principal Financial Officer)
/s/ Eric Marmurek
Senior Vice President and Deputy Chief Financial Officer
July 2, 2025
Eric Marmurek
(Principal Accounting Officer)
/s/ R. Stewart Ewing, Jr.
Director
July 2, 2025
R. Stewart Ewing, Jr.
/s/ Bruns H. Grayson
Director
July 2, 2025
Bruns H. Grayson
/s/ Beatriz V. Infante
Director
July 2, 2025
Beatriz V. Infante
/s/ Scott Mair
Director
July 2, 2025
Scott Mair
/s/ Shaul Shani
Director
July 2, 2025
Shaul Shani
/s/ Richard W. Smith
Director
July 2, 2025
Richard W. Smith
/s/ Tanya Tamone
Director
July 2, 2025
Tanya Tamone