xcel's Integrated SS7 Enables Suntek to Gain China Network Access
Certification
Protocol Variant Approved by China MPT for Network Connection
HYANNIS, Mass.--(BUSINESS WIRE)--May 7, 1998-- Excel Switching Corporation (Nasdaq:XLSW - news) announced
today that, utilizing Excel's SS7 software, the Suntek Group of Guangzhou, China has successfully passed MTP1-3 and China
TUP signaling testing by the Chinese Ministry of Posts and Telecommunications, now known as the Ministry of Information
Industry. Additionally, Suntek utilized Excel's switch in passing its PSP (programmable switch platform) compatibility test
administered by the MPT, which included testing with Alcatel S1240, Ericsson AXE, and NEC NEAX61. As a result, the
China Network Access Certification has been granted to Suntek, with whom Excel has an OEM agreement. This testing is a
prerequisite for all products connected to the Chinese telecommunications network.
As part of the process of gaining network certification for Suntek, Excel developed a protocol variant of its SS7 software that
supports ITU international Telephone User Group (TUP) requirements. The development process for China TUP and MTP
was completed in three months by utilizing Excel's patented Programmable Protocol Language (PPL). PPL technology enables
Excel and its customers to customize the switch system's software. PPL enables full programmability of E1, T1, J1, ISDN,
SS7 and DSP services, allowing developers to quickly meet the challenges presented by variations in signaling protocols. The
SS7 variant for China TUP developed is now available to Excel's customers as part of Excel's PPL library.
The Suntek Group is a leading supplier of telecom service platforms to China Telecom and other Chinese pr ovincial telephone
companies, and has an installed base of more than 600 systems throughout China. Excel's ONE Architecture enables carriers
and developers to integrate network routing, enhanced services and media support on a single, highly scalable switching
platform. Capitalizing on Excel's ONE Architecture by incorporating the company's open, programmable switches into their
platform, Suntek delivers applications such as debit card and calling card services, information services, and voice messaging
services.
About Excel Switching Corporation
Excel Switching Corporation is a leading provider of open switching platforms for telecommunications networks worldwide.
Excel develops, manufactures, markets and supports a family of open, programmable, carrier-class switches that address the
complex enhanced services and wireless and wireline infrastructure needs of network providers. Excel's products are currently
deployed in telecommunications networks in almost 60 countries throughout the world.
About Suntek Group
Suntek Group is a leading provider of value-added network services, intelligent network technology, and communications
services equipment in China. Suntek Group has over 20 subsidiaries, including Guangzhou New-Tech R&D Institute, Suntek
Technology Development Co., Suntek Manufacturing Co., Suntek Information Industry Co., Ltd., and Nanfang Comm.
Systems Software Co. Suntek Group not only undertakes the development, manufacturing, promotion, and services of
communications products, but also operates information services networks.
This release may contain statements which are ''forward looking''. Such statements are subject to risks and uncertainties that
could cause actual results to differ significantly from expectations. Factors that might cause such a difference include, but are
not limited to, those relating to: dependence on and concentration of relationships with application developers, original
equipment manufacturers and systems integrators; length of sales cycle; risk of new product introductions; highly competitive
market; compliance with evolving industry standards; dependence on proprietary rights; and other risks identified in the
Company's Securities and Exchange Commission filings including those risks identified in the section entitled ''Risk Factors'' of
the Company's Registration Statement on Form S-1 (File No. 333-35791) and Quarterly Report on Form 10-Q for the
quarter ended September 27, 1997.
Contact:
Excel Switching Corporation
Karen Steele
(508) 862-3000
ksteele@xl.com
xl.com
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