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  <p style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
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  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, DC 20549</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT
  REPORT<br>
  Pursuant To Section&nbsp;13 Or 15(D)&nbsp;Of The Securities Exchange Act Of
  1934</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">Date
  of report (Date of earliest event reported): <b>&#160;May&nbsp;8, 2008</b></font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;letter-spacing:-.15pt;">ACME
  PACKET, INC.</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant as specified in its charter)</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center">
  
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    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">001-33041</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">04-3526641</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other jurisdiction of incorporation)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission File Number)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S. Employer Identification<br>
    No.)</font></p>
    </td>
   </tr>
  </table>
  
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  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <h2 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:avoid;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">71 Third Avenue<br>
  Burlington, Massachusetts 01803</font></b></h2>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of principal
  executive offices) (Zip Code)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(781) 328-4400</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s telephone
  number, including area code)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">N/A</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Former name or former
  address, if changed since last report)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">Check the appropriate box below if the Form&nbsp;8-K
  filing is intended to simultaneously satisfy the filing obligation of the
  registrant under any of the following provisions (see<i>  </i>General Instruction A.2. below):</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;letter-spacing:-.15pt;">o</font><font style="letter-spacing:-.15pt;">&#160;&#160;&#160; Written communications pursuant to Rule&nbsp;425 under the
  Securities Act (17 CFR 230.425)</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;letter-spacing:-.15pt;">o</font><font style="letter-spacing:-.15pt;">&#160;&#160;&#160; Soliciting material pursuant to Rule&nbsp;14a-12 under the
  Exchange Act (17 CFR 240.14a-12)</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;letter-spacing:-.15pt;">o</font><font style="letter-spacing:-.15pt;">&#160;&#160;&#160; Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under
  the Exchange Act (17 CFR 240.14d-2(b))</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;letter-spacing:-.15pt;">o</font><font style="letter-spacing:-.15pt;">&#160;&#160;&#160; Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under
  the Exchange Act (17 CFR 240.13e-4(c))</font></p>
  
  <div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">
  
  <p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  </div>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\105544\08-13703-1\task2922108\13703-1-ba.htm',USER='105544',CD='May  8 02:25 2008' -->
  
  
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  <div>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 2.02&#160; Results from
  Operations and Financial Condition</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On
  May&nbsp;8, 2008, Acme Packet,&nbsp;Inc. issued a press release to announce its
  financial results for the first quarter ended March&nbsp;31, 2008.&#160; The press release is furnished herewith as Exhibit&nbsp;99.1
  and incorporated by reference herein.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The
  information in this report (including Exhibit&nbsp;99.1) is being &#147;furnished&#148;
  and shall not be deemed to be &#147;filed&#148; for purposes of Section&nbsp;18 of the
  Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), or otherwise
  subject to the liability of that section, and shall not be incorporated by
  reference into any registration statement or other document filed under the
  Securities Act of 1933, as amended (the &#147;Securities Act&#148;), or the Exchange Act,
  except as shall be expressly set forth by specific reference in such filing.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;letter-spacing:-.15pt;">Item 9.01&#160; Financial
  Statements and Exhibits</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">(d)&nbsp;
  Exhibits</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="13%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:13.16%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">Exhibit</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.26%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
    <td width="84%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:84.58%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">Description</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="bottom" style="padding:0in 0in 0in 0in;width:13.16%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.26%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
    <td width="84%" valign="bottom" style="padding:0in 0in 0in 0in;width:84.58%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="top" style="padding:0in 0in 0in 0in;width:13.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">99.1</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.26%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="84%" valign="top" style="padding:0in 0in 0in 0in;width:84.58%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Press
    Release dated May&nbsp;8, 2008 entitled &#147;Acme Packet Reports Record Results
    for First Quarter of Fiscal Year 2008&#148;</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\105544\08-13703-1\task2922108\13703-1-ba.htm',USER='105544',CD='May  8 02:25 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.8in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant
  to the requirements of the Securities Exchange Act of 1934, the registrant has
  duly caused this report to be signed on its behalf by the undersigned hereunto
  duly authorized.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.8in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:&#160; May&nbsp;8, 2008</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.76%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="52%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:52.24%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Acme
    Packet,&nbsp;Inc.</font></p>
    </td>
   </tr>
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.76%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="52%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:52.24%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.76%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="52%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:52.24%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.76%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:&nbsp;</font></p>
    </td>
    <td width="48%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:48.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;&nbsp;/s/
    Keith Seidman</font></p>
    </td>
   </tr>
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.76%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;&nbsp;Name:
    Keith Seidman</font></p>
    </td>
   </tr>
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.76%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;&nbsp;Title:
    Chief Financial Officer</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\105544\08-13703-1\task2922108\13703-1-ba.htm',USER='105544',CD='May  8 02:25 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT
  INDEX</font></b></p>
  
  <p style="margin:0in 0in .0001pt 3.0in;text-indent:22.5pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="13%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:13.34%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">Exhibit</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
    <td width="84%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:84.58%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">Description</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="bottom" style="padding:0in 0in 0in 0in;width:13.34%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
    <td width="84%" valign="bottom" style="padding:0in 0in 0in 0in;width:84.58%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;letter-spacing:-.15pt;">&nbsp;</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="top" style="padding:0in 0in 0in 0in;width:13.34%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">99.1</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="84%" valign="top" style="padding:0in 0in 0in 0in;width:84.58%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Press
    Release dated May&nbsp;8, 2008 entitled &#147;Acme Packet Reports Record Results
    for First Quarter of Fiscal Year 2008&#148;</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>
  
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "a08-13703_18k.htm", "description": "8-K", "secsgml_size_bytes": 24589}]
metadata_filer: {"company-data": {"conformed-name": "ACME PACKET INC", "cik": "0001130258", "assigned-sic": "3576", "irs-number": "043526641", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-33041", "film-number": "08814210"}, "business-address": {"street1": "71 THIRD AVENUE", "city": "BURLINGTON", "state": "MA", "zip": "01803", "phone": "781-328-4400"}, "mail-address": {"street1": "71 THIRD AVENUE", "city": "BURLINGTON", "state": "MA", "zip": "01803"}, "former-company": {"former-conformed-name": "PRIMARY NETWORKS INC", "date-changed": "20001219"}}
text: UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, DC 20549
  FORM 8-K
  CURRENT
  REPORT
  Pursuant To Section 13 Or 15(D) Of The Securities Exchange Act Of
  1934
  Date
  of report (Date of earliest event reported):
  May 8, 2008
  ACME
  PACKET, INC.
  (Exact name of registrant as specified in its charter)
  Delaware
  001-33041
  04-3526641
  (State or other jurisdiction of incorporation)
  (Commission File Number)
  (I.R.S. Employer Identification
  No.)
  71 Third Avenue
  Burlington, Massachusetts 01803
  (Address of principal
  executive offices) (Zip Code)
  (781) 328-4400
  (Registrant's telephone
  number, including area code)
  N/A
  (Former name or former
  address, if changed since last report)
  Check the appropriate box below if the Form 8-K
  filing is intended to simultaneously satisfy the filing obligation of the
  registrant under any of the following provisions (see
  General Instruction A.2. below):
  o
  Written communications pursuant to Rule 425 under the
  Securities Act (17 CFR 230.425)
  o
  Soliciting material pursuant to Rule 14a-12 under the
  Exchange Act (17 CFR 240.14a-12)
  o
  Pre-commencement communications pursuant to Rule 14d-2(b) under
  the Exchange Act (17 CFR 240.14d-2(b))
  o
  Pre-commencement communications pursuant to Rule 13e-4(c) under
  the Exchange Act (17 CFR 240.13e-4(c))
  Item 2.02  Results from
  Operations and Financial Condition
  On
  May 8, 2008, Acme Packet, Inc. issued a press release to announce its
  financial results for the first quarter ended March 31, 2008.  The press release is furnished herewith as Exhibit 99.1
  and incorporated by reference herein.
  The
  information in this report (including Exhibit 99.1) is being "furnished"
  and shall not be deemed to be "filed" for purposes of Section 18 of the
  Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise
  subject to the liability of that section, and shall not be incorporated by
  reference into any registration statement or other document filed under the
  Securities Act of 1933, as amended (the "Securities Act"), or the Exchange Act,
  except as shall be expressly set forth by specific reference in such filing.
  Item 9.01  Financial
  Statements and Exhibits
  (d) 
  Exhibits
  Exhibit
  Description
  99.1
  Press
    Release dated May 8, 2008 entitled "Acme Packet Reports Record Results
    for First Quarter of Fiscal Year 2008"
  2
  SIGNATURES
  Pursuant
  to the requirements of the Securities Exchange Act of 1934, the registrant has
  duly caused this report to be signed on its behalf by the undersigned hereunto
  duly authorized.
  Date:  May 8, 2008
  Acme
    Packet, Inc.
  By:
  /s/
    Keith Seidman
  Name:
    Keith Seidman
  Title:
    Chief Financial Officer
  3
  EXHIBIT
  INDEX
  Exhibit
  Description
  99.1
  Press
    Release dated May 8, 2008 entitled "Acme Packet Reports Record Results
    for First Quarter of Fiscal Year 2008"
  4