CPT Teams with Excel Switching Corporation to Deliver Advanced VXML Services Using SIP-Based Call Routing and Connection; Partnership Utilizes Advanced SIP technology to Lower Operating Costs and Improve Communication.

ATLANTA -- CPT International, a leading provider of standards-based voice application hosting services, today announced a technology partnership with Excel Switching Corporation to provide call routing based on Session Initiation Protocol (SIP). The companies will discuss how this cutting-edge technology improves call connection in booth #50046 at SUPERCOMM 2005, to be held June 6-9 at Chicago's McCormick Place.

"SIP is emerging as the technology of choice for multimedia/real-time communication session control throughout the Internet, corporate networks and next-generation wireless networks," said Robin Biddy, VP of Sales and Corporate Services at CPT International. "CPT International uses Excel's integration of SIP into its switches to handle call routing and connection, which lowers operating costs, improves efficiency, and simplifies our architecture, all factors that directly benefit our customers."

Excel has a successful fifteen-year history of working closely with top telecommunications developers throughout the world. As Excel's platforms are built upon an open and programmable architecture, its partners have created a wide range of innovative, revenue-generating solutions for fixed and mobile networks. Excel's partners build highly-localized developed software applications that run on the Excel platform, then combine these with other network components to create a complete turnkey communications solution, which is directly marketed, sold and supported by the partner.

"As application developers build their services, they need to choose among multiple network architecture alternatives for delivering services," said Bill Kelly, Director of Marketing at Excel Switching Corp. "Through our technology partnership with CPT, we can demonstrate how our switching equipment allows Internet protocols such as SIP to interoperate seamlessly in environments with existing PSTN protocols."

"Thanks to Excel's support of SIP technology, we now require fewer hardware components in the network," said Biddy. "There is no longer any need to duplicate DSP resources, and the Voice Response Unit (VRU) no longer requires a proprietary DSP resource board, as a result our operating costs are lowered significantly."

About Excel Switching Corporation

Founded in 1988, Excel Switching Corporation is a leading provider of carrier-class media gateways, media servers, signaling gateways, and enhanced service platforms for original equipment manufacturers, value-added resellers, and service providers. As a profitable company with more than 8,500 systems deployed in more than 80 countries, Excel addresses carrier needs for profitable applications by delivering a family of platforms that bridge fixed, mobile, and IP networks, thereby lowering costs, improving call quality, and simplifying network operations. By working closely with its partners, Excel supplies service providers with highly reliable, localized solutions designed to meet their immediate and future needs. For more information, visit www.ExcelSwitching.com.

About CPT International

CPT International Inc. is a telecom service provider located in Marietta, Ga. Our flagship offering, Voice Harbor, provides hosting services for VoiceXML, speech, multi-modal and traditional telephony applications. Voice Harbor brings flexible call capacity, predictable costs and rapid deployment to customers and partners seeking to outsource voice application infrastructure. With more than a decade of experience delivering robust telephony performance and proactive support to carrier-grade customers, CPT is the partner of choice for standards-based voice application hosting. For more information, visit us at www.cptii.com.