[Asterisk-Dev] XTunnels: freeware for SIP tunnelling

[John Todd]

Xten announced a package called "xtunnels" today, which they're 
giving away (looks like a BSD license.)

I'm uncertain if I think their solution has anything significantly 
fancier than what we've got now, but the encryption of the voice 
"tunnel" is actually kind of interesting, but requires Xten clients 
(at the moment.)

Perhaps it's worth examining the source (even though it doesn't 
compile on my OpenBSD 3.3 systems...)

JT


>Xten Launches Free NAT and Firewall Traversal Solution for 
>Standards-based Voice and Video over IP
>
>SANTA CLARA, CA - PRNewswire-FirstCall - June 2
>SANTA CLARA, CA, June 2 /PRNewswire-FirstCall/ -- Xten Networks, 
>Inc. (OTCBB:XNWK) has announced today the release of XTunnels as a 
>free NAT (Network Address Translation), Firewall and Private Proxy 
>traversal solution for SIP endpoints. VoIP softphones and hard 
>phones incorporating XTunnels can now receive voice and video calls 
>across NAT-enabled firewalls without adjusting or modifying anything 
>on the private network, as is the case with Xten softphones today.
>"Our industry needed a solution to this problem for the benefit of 
>all who are interested in the rapid expansion of Voice and Video 
>over IP," said Erik Lagerway, co-founder and Chief Operating Officer 
>of Xten, "All Xten softphones support XTunnels, which allows Service 
>Provider, Carrier and MSO customers, interested in deploying Xten 
>softphones, to do so without the additional capital outlay of an 
>expensive NAT traversal solution."
>A very significant obstacle standing in the way of mainstream 
>deployment of Voice and Video over IP today concerns security issues 
>at the edge of the network. Prior to Xten's XTunnels solution, 
>companies wanting to deploy VoIP in a secure network interconnected 
>to an open network (the Internet) had to contemplate using solutions 
>such as SBCs (Session Border Controllers) to achieve this. SBCs 
>sometimes fail to solve the problem in scenarios where reverse UDP 
>mapping is not enabled or turned off, which is the case in most 
>corporate firewalls. Another solution would be to replace the local 
>user firewall, which is costly and cumbersome for the end user or 
>corporate network IT manager.
>XTunnels is the only free solution that solves almost all of the NAT 
>and Firewall traversal problems plaguing standards-based VoIP today. 
>For more information visit http://www.xtunnels.org/
>About Xten Networks, Inc.
>Xten is a provider of award-winning, high-quality, carrier-grade 
>SIP- based VoIP software and softphones. Xten's goal is to be the 
>primary choice in SIP-based client-side audio and video IP 
>communications software for Telecoms, Cable Providers and Internet 
>Telephony Service Providers. Those who are interested in Xten 
>products should visit sales.xten.com On the Web: http://www.xten.com/
>For more information, please contact: Mark Bruk, CEO 408.876.4346 
>ext 4 mark at xten.com
>Xten Networks Inc.