Goldman, Sachs & Co. will act as sole book-runner, Credit Suisse Securities (USA) LLC will act as joint lead manager and J.P. Morgan Securities Inc. will act as co-manager in the offering.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective.  These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective.  When available, a prospectus may be obtained from Goldman, Sachs & Co., Attn: Prospectus Dept., 85 Broad St., New York, New York, 10004 via fax at (212) 902-9316 or e-mail at prospectus-ny@ny.email.gs.com.

About Acme Packet

Acme Packet is the leading provider of session border controllers that enable service providers to deliver secure and high quality interactive communications – voice, video and other real-time multi-media sessions – across Internet Protocol network borders.