SpeedVoIP Debuts VoIP Anti-Blocking.

For political & economic reasons, ISP may block VoIP in your country. To protect your VoIP business & profit, SpeedVoIP Communication Technology Co., Ltd. is providing Security VoIP software solution, VGSC 2008, which installed on the PC at the client side.
Key Features:
•  Maximum call completion rate and maximum voice service duration
•  SIP core standards and a variety of drafts supported
•  Proprietary link layer protocol for controlling
•  Any 3rd-party Softphone/ATA/Gateway/IPPhone/IAD and SIP Proxy/Registrar/SBC supported
•  The most comprehensive codec including g.711/g.723/g.729ab/iLBC/gsm/speechX supported
•  Bypassing Narus and Verso platform detection
•  Flexible user-customized encryption policy driven
•  Strict call path protection and security up to termination
•  Only simultaneous signaling/media/T.38 fax packet support across any firewall.
•  No network or firewall modification is required.
•  Excellent voice quality without any latency and performance compromise
•  Small footprint terminal SDK .
•  Available on all major platforms.
Pls review: www.speed-voip.com for details & get free trial at http://speed-voip.com/download.html