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Worldwide Interoperability on VoIP using IPv6
[March 08, 2007]

Worldwide Interoperability on VoIP using IPv6

LUXEMBOURG, MIAMI, QUEBEC CITY, VANCOUVER, March 8 /PRNewswire-FirstCall/ -- The IPv6 Forum, along with Viagenie, Stealth Communications and CounterPath Solutions, today announced that a series of successful VoIP calls over IPv6 has been carried out, marking an important advancement in worldwide interoperability among VoIP technologies using IPv6.

The VoIP calls, connecting Viagenie in Canada and Consulintel in Spain, were conducted using the CounterPath eyeBeam(TM) softphone through the IPv6 version of Asterisk(R), ported by Viagenie, a consulting and R&D firm in advanced IP networking. The Asterisk-IPv6 server was located on Stealth Communications' Voice Peering Fabric (VPF) network.

Asterisk is the most popular and extensible open source telephone system in the world, offering flexibility, functionality and features not available in advanced, high-end (high-cost) proprietary business systems. Asterisk is a complete IP PBX (private branch exchange) for businesses, and can be downloaded for free.

"Asterisk-IPv6 shows the power of VoIPv6 by avoiding all issues regarding NAT traversal when using IPv4. The presence of NAT for VoIPv4 results in users issues, such as non-connecting calls, one-way audio, non-working DTMF. Asterisk-IPv6 solves all these issues and also brings, together with IPv6, true IP mobility, security and autoconfiguration of VoIPv6 phones," states Marc Blanchet, President of Viagenie.

"The IPv6 Forum and its IPv6 Ready Program are adding SIP into its test suite to promote SIP and IPv6 interoperability worldwide. This is another major milestone in demonstrating true end to end services," stresses Latif Ladid, IPv6 Forum President.

"EyeBeam implements the ICE standard from the IETF, providing a migration path from IPv4 to IPv6 networks. This series of calls demonstrates a successful test of IPv6 in a real network and represents an important step toward the widespread deployment of IPv6 technology," said Jason Fischl, CTO of CounterPath.

"The Voice Peering Fabric ENUM Registry and SRV Registry are fully IPv6 enabled. These registries map telephone numbers to Internet addresses, enabling companies globally to route VoIP phone calls among one another in a peer-to-peer fashion without touching the public telephony networks," said Shrihari Pandit, President & CEO of Stealth Communications. VPF is a distributed Ethernet network that functions as an exchange or meet-point for organizations around the world, carrying over one-hundred billion minutes annually.

About the IPv6 Forum

The IPv6 Forum is a world-wide consortium of leading Internet service vendors, National Research & Education Networks (NRENs) and international ISPs, with a clear mission to promote IPv6 by improving market and user awareness, creating a quality and secure New Generation Internet and allowing world-wide equitable access to knowledge and technology. The key focus of the IPv6 Forum today is to provide technical guidance for the deployment of IPv6. IPv6 Summits are organized by the IPv6 Forum and staged in various locations around the world to provide industry and market with the best available information on this rapidly advancing technology.

About Viagenie

Viagenie is a consulting and research and development firm in advanced IP networking, with more than 10 years of experience in IPv6. Viagenie staff co-founded IPv6Forum and has been active in standards (IETF) and deployments (Japan, US, Canada, Europe) of IPv6 and VoIP. Asterisk-IPv6 project web site:

About Stealth Communications

Stealth Communications celebrates more than a decade in the telecom industry with its successful lines of services based on Ethernet and IP technology. With a positive attitude towards improving telecommunications and endless innovation benefiting communities, Stealth has earned a great reputation in the industry by providing quality services and customer satisfaction. Stealth works closely with its customers and partners who are in the telecom, financial, realty, educational and government sector. For more information on Stealth, visit:

About CounterPath

CounterPath Solutions, Inc. (OTCBB: CTPS), is a developer of award-winning, carrier-grade VoIP and Video over IP SIP softphones for telecom and Internet telephony service providers, cable operators, IP-PBX manufacturers and infrastructure manufacturers. CounterPath's SIP softphones and softphone SDKs (Software Development Kits), which provide VoIP, Video over IP, IM (Instant Messaging) and Presence functionality and can be preconfigured to our customer's VoIP service, are predominantly licensed on a per seat or per subscriber basis, either co-branded or private labeled. CounterPath's technology is deployed by over 235 customers in more than 50 countries. Additional information about CounterPath and CounterPath's products and services is available at

Asterisk and the Asterisk logo are trademarks of Digium Inc. All other
trademarks are property of their respected owners.

CONTACT: IPv6 Forum, Latif Ladid, (+352) 30 71 35 (Luxembourg),; Viagenie, Marc Blanchet, (418) 656-9254,; Stealth Communications, Shrihari Pandit, (212) 232-2020,; CounterPath Solutions, Rob Brown, (604) 320-3344 x.120,

CounterPath Solutions, Inc.

CONTACT: IPv6 Forum, Latif Ladid, (+352) 30 71 35 (Luxembourg),; Viagenie, Marc Blanchet, (418) 656-9254,; Stealth Communications, Shrihari Pandit, (212)232-2020,; CounterPath Solutions, Rob Brown, (604)320-3344 x.120,

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