<PAGE>

As filed with the Securities and Exchange Commission on June 30, 2000
                                                 Registration No. 333-__________


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  -------------

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                            ACTIVE VOICE CORPORATION
             (Exact name of registrant as specified in its charter)

            Washington                                  91-1235111
 (State or Other Jurisdiction of            (I.R.S. Employer Identification No.)
  Incorporation or Organization)


                          2901 Third Avenue, Suite 500
                         Seattle, Washington 98121-9800
                                 (206) 441-4700

          (Address of Principal Executive Offices, Including Zip Code)

                            -------------------------

                            Active Voice Corporation
                             1998 Stock Option Plan

                            (Full Title of the Plan)

                            -------------------------

                     Jose S. David, Chief Financial Officer
                          2901 Third Avenue, Suite 500
                         Seattle, Washington 98121-9800
                                 (206) 441-4700

            (Name, Address and Telephone Number of Agent for Service)
                            -------------------------

                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>

--------------------------------------------------------------------------------------------------------------------
Title of Securities to Be                                     Proposed Maximum Aggregate    Amount of
Registered                       Amount to be Registered (1)  Offering Price (2)            Registration Fee
--------------------------------------------------------------------------------------------------------------------
<S>                              <C>                          <C>                           <C>
Common Stock                     800,000 shares               $5,550,000                    $1,387.50
--------------------------------------------------------------------------------------------------------------------

</TABLE>

(1)  Plus (i) an indeterminate number of shares of Common Stock that may become
     issuable under the Plan as a result of the adjustment provisions therein,
     and (ii) if any interests in the Plan constitute separate securities
     required to be registered under the Securities Act of 1933, then, pursuant
     to Rule 416(c), an indeterminate amount of such interests to be offered or
     sold pursuant to the Plan.

(2)  Estimated solely for purposes of computing the registration fee pursuant to
     Rules 457(c) and 457(h) based on an offering price of $6.9375 per share
     (the average of the high and low sales prices reported by the Nasdaq Stock
     Market on June 27, 2000) for the shares issuable upon exercise of options
     granted or to be granted under the Plan.



<PAGE>

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

     This registration statement relates to 800,000 shares of the Registrant's
Common Stock, no par value, reserved for issuance under the Active Voice
Corporation 1998 Stock Option Plan, as amended (the "Plan"). On June 30, 1998,
the Registrant filed a Form S-8 Registration Statement (Registration No.
333-58103) to register 120,000 shares of Common Stock reserved for issuance
under the 1997 Director Stock Option Plan (the "Director Plan") and 1,200,000
shares of Common Stock reserved for issuance under the Plan. On July 30, 1999
the Registrant filed a Form S-8 Registration Statement (Registration No.
333-84059) to register an additional 48,000 shares of Common Stock reserved for
issuance under the Director Plan. The contents of such Registration Statements
are incorporated herein by reference except as set forth below. All share
numbers for Common Stock in this Registration Statement have been adjusted to
reflect the two-for-one stock split of the Common Stock effected by a stock
dividend paid on March 22, 2000.

ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE

     The following documents are incorporated in this Registration Statement by
reference:

          1. The Registrant's Annual Report on Form 10-K for its fiscal year
     ended March 31, 2000, filed by the Registrant with the Securities and
     Exchange Commission pursuant to the Securities Exchange Act of 1934, as
     amended (the "Exchange Act");

          2. All other reports filed by the Registrant with the Securities and
     Exchange Commission pursuant to Section 13(a) or 15(d) of the Exchange Act
     since March 31, 2000; and

          3. The description of the Registrant's Common Stock set forth in the
     Registration Statement on Form 8-A filed by the Registrant with the
     Securities and Exchange Commission on November 4, 1993, under Section 12(g)
     of the Exchange Act.

     All documents filed by the Registrant with the Securities and Exchange
Commission after the date of this Registration Statement pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Exchange Act, before the filing of a
post-effective amendment that indicates that all securities offered pursuant to
this Registration Statement have been sold or that deregisters all securities
then remaining unsold, shall also be deemed to be incorporated by reference in
this Registration Statement and to be part hereof from the respective dates of
filing of such documents.

     Any statement 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
that also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any statement so modified or


                                     II - 1
<PAGE>

superseded shall not be deemed, except as so modified or superseded, to
constitute a part of this Registration Statement.

ITEM 8.  EXHIBITS

<TABLE>
<CAPTION>

        EXHIBIT
        NUMBER        DESCRIPTION

        <S>           <C>
        5             Opinion of Riddell Williams P.S.
        23.1          Consent of Riddell Williams P.S. (included in Exhibit 5)
        23.2          Consent of Ernst & Young LLP, Independent Auditors
        24            Powers of Attorney (included on signature page)

</TABLE>


                                     II - 2
<PAGE>


                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe it meets all 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 Seattle, State of Washington, on June 30, 2000.

                                       ACTIVE VOICE CORPORATION



                                       By /s/ Frank J. Costa
                                          --------------------------------------
                                          Frank J. Costa, President and Chief
                                          Executive Officer

                                POWER OF ATTORNEY

Each person whose signature appears below hereby constitutes and appoints Frank
J. Costa and Jose S. David, and each of them severally, such person's true and
lawful attorneys-in-fact and agents, with full power to act without the other
and with full power of substitution and resubstitution, to execute in the name
and on behalf of such person, individually and in each capacity stated below,
any and all amendments and post-effective amendments to this Registration
Statement, any and all supplements hereto, and any and all other instruments
necessary or incidental in connection herewith, and to file the same with the
Securities and Exchange Commission.

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed by the following persons in the capacities and on the
dates indicated below.

<TABLE>
<CAPTION>

       SIGNATURE                                     TITLE                                 DATE
<S>                                          <C>                                           <C>
/s/ Frank J. Costa                           President and Chief Executive Officer            June 30, 2000
-------------------------------------        (Principal Executive Officer) and
Frank J. Costa                               Director


/s/ Jose S. David                            Chief Financial Officer (Principal               June 30, 2000
-------------------------------------        Financial and Accounting Officer)
Jose S. David


/s Robert L. Richmond                        Chairman of the Board                            June 30, 2000
-------------------------------------
Robert L. Richmond


/s/ Tom A. Alberg                            Director                                         June 30, 2000
-------------------------------------
Tom A. Alberg

                                             Director                                         June 30, 2000
-------------------------------------
Douglas P. Beighle


-------------------------------------        Director                                         June 30, 2000
Robert C. Greco


/s/ Harold H. Kawaguchi                      Director                                         June 30, 2000
-------------------------------------
Harold H. Kawaguchi

</TABLE>


                                     II - 3
<PAGE>

                                  EXHIBIT INDEX

EXHIBIT
NUMBER         DESCRIPTION

5              Opinion of Riddell Williams P.S.

23.2           Consent of Ernst & Young LLP, Independent Auditors
[{"type": "S-8", "sequence": "1", "filename": "s-8.txt", "description": "S-8", "secsgml_size_bytes": 10244}]
{"company-data": {"conformed-name": "ACTIVE VOICE CORP", "cik": "0000869554", "assigned-sic": "3661", "irs-number": "911235111", "state-of-incorporation": "WA", "fiscal-year-end": "0331"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-40550", "film-number": "666137"}, "business-address": {"street1": "2901 THIRD AVE", "street2": "STE 500", "city": "SEATTLE", "state": "WA", "zip": "98121-9800", "phone": "2064414700"}, "mail-address": {"street1": "2901 THIRD AVE", "street2": "SUITE 500", "city": "SEATTLE", "state": "WA", "zip": "98121"}}
As filed with the Securities and Exchange Commission on June 30, 2000
                                                 Registration No. 333-__________

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  -------------

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                            ACTIVE VOICE CORPORATION
             (Exact name of registrant as specified in its charter)

            Washington                                  91-1235111
 (State or Other Jurisdiction of            (I.R.S. Employer Identification No.)
  Incorporation or Organization)

                          2901 Third Avenue, Suite 500
                         Seattle, Washington 98121-9800
                                 (206) 441-4700

          (Address of Principal Executive Offices, Including Zip Code)

                            -------------------------

                            Active Voice Corporation
                             1998 Stock Option Plan

                            (Full Title of the Plan)

                            -------------------------

                     Jose S. David, Chief Financial Officer
                          2901 Third Avenue, Suite 500
                         Seattle, Washington 98121-9800
                                 (206) 441-4700

            (Name, Address and Telephone Number of Agent for Service)
                            -------------------------

                         CALCULATION OF REGISTRATION FEE
--------------------------------------------------------------------------------------------------------------------
Title of Securities to Be                                     Proposed Maximum Aggregate    Amount of
Registered                       Amount to be Registered (1)  Offering Price (2)            Registration Fee
--------------------------------------------------------------------------------------------------------------------
Common Stock                     800,000 shares               $5,550,000                    $1,387.50
--------------------------------------------------------------------------------------------------------------------
(1)  Plus (i) an indeterminate number of shares of Common Stock that may become
     issuable under the Plan as a result of the adjustment provisions therein,
     and (ii) if any interests in the Plan constitute separate securities
     required to be registered under the Securities Act of 1933, then, pursuant
     to Rule 416(c), an indeterminate amount of such interests to be offered or
     sold pursuant to the Plan.

(2)  Estimated solely for purposes of computing the registration fee pursuant to
     Rules 457(c) and 457(h) based on an offering price of $6.9375 per share
     (the average of the high and low sales prices reported by the Nasdaq Stock
     Market on June 27, 2000) for the shares issuable upon exercise of options
     granted or to be granted under the Plan.
PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

     This registration statement relates to 800,000 shares of the Registrant's
Common Stock, no par value, reserved for issuance under the Active Voice
Corporation 1998 Stock Option Plan, as amended (the "Plan"). On June 30, 1998,
the Registrant filed a Form S-8 Registration Statement (Registration No.
333-58103) to register 120,000 shares of Common Stock reserved for issuance
under the 1997 Director Stock Option Plan (the "Director Plan") and 1,200,000
shares of Common Stock reserved for issuance under the Plan. On July 30, 1999
the Registrant filed a Form S-8 Registration Statement (Registration No.
333-84059) to register an additional 48,000 shares of Common Stock reserved for
issuance under the Director Plan. The contents of such Registration Statements
are incorporated herein by reference except as set forth below. All share
numbers for Common Stock in this Registration Statement have been adjusted to
reflect the two-for-one stock split of the Common Stock effected by a stock
dividend paid on March 22, 2000.

ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE

     The following documents are incorporated in this Registration Statement by
reference:

          1. The Registrant's Annual Report on Form 10-K for its fiscal year
     ended March 31, 2000, filed by the Registrant with the Securities and
     Exchange Commission pursuant to the Securities Exchange Act of 1934, as
     amended (the "Exchange Act");

          2. All other reports filed by the Registrant with the Securities and
     Exchange Commission pursuant to Section 13(a) or 15(d) of the Exchange Act
     since March 31, 2000; and

          3. The description of the Registrant's Common Stock set forth in the
     Registration Statement on Form 8-A filed by the Registrant with the
     Securities and Exchange Commission on November 4, 1993, under Section 12(g)
     of the Exchange Act.

     All documents filed by the Registrant with the Securities and Exchange
Commission after the date of this Registration Statement pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Exchange Act, before the filing of a
post-effective amendment that indicates that all securities offered pursuant to
this Registration Statement have been sold or that deregisters all securities
then remaining unsold, shall also be deemed to be incorporated by reference in
this Registration Statement and to be part hereof from the respective dates of
filing of such documents.

     Any statement 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
that also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any statement so modified or

                                     II - 1
superseded shall not be deemed, except as so modified or superseded, to
constitute a part of this Registration Statement.

ITEM 8.  EXHIBITS
EXHIBIT
        NUMBER        DESCRIPTION
5             Opinion of Riddell Williams P.S.
        23.1          Consent of Riddell Williams P.S. (included in Exhibit 5)
        23.2          Consent of Ernst & Young LLP, Independent Auditors
        24            Powers of Attorney (included on signature page)
II - 2
SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe it meets all 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 Seattle, State of Washington, on June 30, 2000.

                                       ACTIVE VOICE CORPORATION

                                       By /s/ Frank J. Costa
                                          --------------------------------------
                                          Frank J. Costa, President and Chief
                                          Executive Officer

                                POWER OF ATTORNEY

Each person whose signature appears below hereby constitutes and appoints Frank
J. Costa and Jose S. David, and each of them severally, such person's true and
lawful attorneys-in-fact and agents, with full power to act without the other
and with full power of substitution and resubstitution, to execute in the name
and on behalf of such person, individually and in each capacity stated below,
any and all amendments and post-effective amendments to this Registration
Statement, any and all supplements hereto, and any and all other instruments
necessary or incidental in connection herewith, and to file the same with the
Securities and Exchange Commission.

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed by the following persons in the capacities and on the
dates indicated below.
SIGNATURE                                     TITLE                                 DATE
/s/ Frank J. Costa                           President and Chief Executive Officer            June 30, 2000
-------------------------------------        (Principal Executive Officer) and
Frank J. Costa                               Director

/s/ Jose S. David                            Chief Financial Officer (Principal               June 30, 2000
-------------------------------------        Financial and Accounting Officer)
Jose S. David

/s Robert L. Richmond                        Chairman of the Board                            June 30, 2000
-------------------------------------
Robert L. Richmond

/s/ Tom A. Alberg                            Director                                         June 30, 2000
-------------------------------------
Tom A. Alberg

                                             Director                                         June 30, 2000
-------------------------------------
Douglas P. Beighle

-------------------------------------        Director                                         June 30, 2000
Robert C. Greco

/s/ Harold H. Kawaguchi                      Director                                         June 30, 2000
-------------------------------------
Harold H. Kawaguchi
II - 3
EXHIBIT INDEX

EXHIBIT
NUMBER         DESCRIPTION

5              Opinion of Riddell Williams P.S.

23.2           Consent of Ernst & Young LLP, Independent Auditors