In a sign of strong demand, Acme Packet priced its offering of roughly 11.5 million shares at $9.50, a 12% premium to its upwardly revised $8-$9 range. Acme is a leading provider of carrier class session border controllers (SBCs) that are used to connect disparate Internet Protocol (IP) networks. Goldman Sachs lead managed the deal, and the stock is set to begin trading on the NASDAQ under the ticker symbol "APKT" on Friday.