HOUSTON, TEXAS -January, 2006 - Enterprise Systems Corporation announced today that Mariner Energy has chosen Enterprise Systems to provide a Nortel total voice and data Gig to the desktop solution for its corporate offices in Houston, Texas. The solution consists of:

HOUSTON, TEXAS -October, 2005 - Enterprise Systems Corporation announced today that Zinke & Trumbo has chosen Enterprise Systems to provide a Nortel total voice, data and wireless solution for Zinke and Trumbo's corporate office in Tulsa, Oklahoma. The solution consists of:

HOUSTON, TEXAS -October, 2005 - Enterprise Systems Corporation announced today that Tornier Surgical Implants has chosen Enterprise Systems to provide a Nortel voice solution consisting of the Business Communications Manager (BCM) 400 with Contact Center software. The 32 station deployment be providing contact center services for their sales and support organizations. Unified and Fax Messaging will also be utilized via Nortel's CallPilot platform.

HOUSTON, TEXAS -October 14, 2005 - Enterprise Systems Corporation announced today that Tomball Regional Hospital has chosen Enterprise Systems to provide a Nortel data solution for its core network in Tomball, Texas. The solution consists of Nortel 5530 and Baystack 450 Ethernet switches to supply 10 Gig trunking for the PAX application

HOUSTON, TEXAS - August, 2005 - Enterprise Systems Corporation announced today that Enterprise Systems Corporation has performed an upgrade to Succession software and installation of a CallPilot migration for KATZ Media Group in Dallas, Texas. KATZ was able to retain the initial investment of a Meridian 1 Option 11C on Release 23 and Meridian Mail by upgrading to Succession 4.0 IP Telephony software and seamlessly migrating all messaging information to CallPilot. Additionally, Enterprise personnel helped KATZ to realize the significant value of CallPilot by implementing Unified Messaging.

HOUSTON, TEXAS -August, 2005 – Enterprise Systems Corporation announced today that National Oilwell Varco has awarded a new system installation and upgrade contract to Enterprise Systems. The contract involves the installation of a 700 station CS1000 Single Group (Option 61C) switch at the Corporate Westchase offices utilizing IP Trunking and CallPilot Network Message Services (NMS)for centralized voice messaging. Additionally, National Oilwell’s Varco will receive a CS1000M Cabinet (Option 11C) with IP Trunking back to the Corporate CS1000M Single Group (Option 61C).

HOUSTON, TEXAS - September, 2005 - Enterprise Systems Corporation announced today that a Nortel BCM 200 and the new Nortel Digital Mobility Wireless solution have been deployed for General Welding Works' new Houston Ship Channel facility. "The Digital Mobility Wireless solution gives General Welding the capability for managers and employees to traverse the enormous manufacturing bays with communications capabilities that were flat out impossible just a couple of years ago. The range and quality is simply outstanding" says Mark Faijkus of General Welding.

HOUSTON, TEXAS – July, 2005 – Enterprise Systems Corporation announced today that a Nortel Meridian 1 Option 61C and CallPilot with Unified Messaging has been successfully deployed for the new Patient Accounts Services Contact Center in Houston. “The mission critical nature of our Call Center made the successful deployment of our Meridian 1 Option 61C a priority. We wanted to be certain we had the best Nortel support on site and Enterprise Systems did not disappoint us. Their reputation for call center experience is well known and we now have experienced first hand why.” said Rich Due, Vice President of Operations for PAS.

HOUSTON, TEXAS - July, 2005 - Enterprise Systems Corporation announced today that Enterprise Systems Corporation has been selected to provide a Nortel BCM 400 to Idaho State University Federal Credit Union. The 30 seat BCM is to be installed at the in Pocatello, Idaho facility.

HOUSTON, TEXAS -June, 2005 - Enterprise Systems Corporation announced today that Texas Genco Energy has chosen Enterprise Systems to provide a Nortel voice solution for its offices in Houston, Texas. The solution consists of a Meridian 1 Option 11C Chassis with CallPilot Mini. The system will be networked to the Main corporate campus.