Softphone Will Complement ADTRAN's NetVanta 7100 IP-PBX-Switch-Router to Address Needs of Mobile and Remote Workers VANCOUVER, March 7 /PRNewswire-FirstCall/ -- CounterPath Solutions, Inc. (OTC:CTPS) (BULLETIN BOARD: CTPS) , a leader in Voice over IP (VoIP) communications software and ADTRAN(R), Inc. (NASDAQ:ADTN) a leading supplier of IP-based networking solutions have partnered in the development of a IP softphone for use with ADTRAN's newly announced NetVanta(R) 7100 IP PBX-switch-router. This new co- branded IP softphone is designed to extend the convenience and cost savings of VoIP to mobile, home and branch office users by providing the ability to use PCs or laptops as a phone via an easy to use, feature rich Graphical User Interface (GUI). "ADTRAN chose to partner with CounterPath for a softphone solution because they are a recognized leader in VoIP communications software," stated Tim Saunders, vice president of product management, ADTRAN Enterprise Networks division. "The co-branded ADTRAN/CounterPath softphone offers NetVanta 7100 customers robust functionality, security, and an intuitive easy-to-use interface, making it easy for mobile or remote workers to function just as if they were in their offices." "Our goal is to ensure the success of our partners through a standards- based softphone delivering the best user experience possible," said Donovan Jones, vice president sales and marketing of CounterPath. "We're delighted to have been selected by ADTRAN to provide a solution that drives additional value into their Voice over IP offering." The co-branded ADTRAN/CounterPath IP Softphone will be available to NetVanta 7100 customers beginning in March, 2006. A five-license user pack will has a list price of $500. About CounterPath(TM) Solutions CounterPath Solutions, Inc., formerly Xten Networks, Inc., is a developer of award-winning, high-quality, carrier- grade VoIP (Voice over IP) and Video over IP SIP softphones for service providers, cable operators, Internet telephony service providers, IP PBX manufacturers and OEMs. CounterPath's SIP softphones are available either pre-configured or as a software development kit (SDK), and provide VoIP (Voice over IP), Video over IP, IM (Instant Messaging), and Presence functionality. With over 150 customers in more than 30 countries, CounterPath technology is deployed in more than 5,400,000 IP endpoints worldwide. For more information on CounterPath, contact: Todd Hanas (Investor Relations) +1.866.869.8072 Ellen Topp & Rachel Euretig (LEWIS Public Relations) +1.415.992.4400 About ADTRAN, Inc. ADTRAN, Inc. is one of the world's most successful telecom equipment suppliers, with an 18-year history of profitability and a portfolio of more than 1,400 solutions for use in the last mile of today's telecommunications networks. Widely deployed by carriers and enterprises alike, ADTRAN solutions enable voice, data, video, and Internet communications across copper, fiber, and wireless network infrastructures. ADTRAN solutions are currently in use by every major domestic service provider and many international ones, as well as by thousands of public, private and governmental organizations worldwide. For more information, contact the company at 800 9ADTRAN (800 923-8726) or via email at . On the web, visit http://www.adtran.com/. DATASOURCE: CounterPath Solutions, Inc. CONTACT: For more information on CounterPath, contact: Todd Hanas (Investor Relations), 1-866-869-8072, ; Ellen Topp & Rachel Euretig (LEWIS Public Relations), (415) 992-4400, ; For more information on ADTRAN, Inc., contact the company at 1-800-9ADTRAN (1-800-923-8726) or via email at . On the web, visit http://www.adtran.com/.

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