VoiceGuard VoIP anti-blocking solution, circumvent VoIP blocking, surpass conventional VPN:
* work with any 3rd party ATA/Softphone/SIP Server
* can't be blocked due to not using fixed port either for TCP or UDP
* a proprietary layer 2 link protocal, thus not to compromise voice quality and overhead

More details pls refer to SpeedVoIP - VoIP Blocking, VPN, Encryption, SIP Adapter, ATA, Gateway

Lynn
Email: lynn@speed-voip.com
MSN: svoipsales@hotmail.com
Skype: svoipsales
Yahoo: speedvoip@yahoo.com
Website: SpeedVoIP - VoIP Blocking, VPN, Encryption, SIP Adapter, ATA, Gateway