HOUSTON, TEXAS - March, 2004 - Enterprise Systems Corporation announced today that Allen Systems Group (ASG) has chosen Enterprise Systems to perform installation of a complete Nortel Networks VoIP solution for its Naples, Florida facility. The site will include a Succession 1000 with a complete compliment of i2004 IP end points (instruments) and Baystack Ethernet Switches. Additionally, the Succession 1000 will be IP Peer Networked with Succession Branch Offices at ASG's outlying locations in: