Shares of Acme Packet (APKT) soared more than 22% in early trading Monday after Oracle (ORCL) announced it plans to buy the communications equipment company for $29.25 a share, or about $1.7 billion. The price is a 22% premium to Acme's closing price Friday of 23.93. Acme was trading at 29.25 early Monday. Oracle is the No. 1 database maker and is the leading maker of business software applications overall along with SAP (SAP). Acme Packet's