 | | | Author: | | Tany (202.56.7.---) | | | Date: | | 05.05.08 | |
|
| VGCP (Voice Guard@ Control Protocol) is our core technology
| for VoIP anti-blocking solutions. It is a proprietary layer 2
| link protocol working at between IP stack and NIC driver. The
| core patent-pending VGCP is industry’s most state-of-the-art
| voice service provider class security protocol whose
| scalability and flexibility results in not to compromise
| voice quality and overhead. VGCP controls and monitors full
| voice signaling and media flow intelligently, meanwhile
| disguise SIP and RTP packets into normal allowed data packets
| such as DNS and TFTP, and makes two-way encryption and
| decryption driven by user-customized policy. Even in some
| circumstance, VGCP can simulate traffic behavior of universal
| data networking protocol such as OICQ, MSN and so on.
|
| Key Features
| Maximum call completion rate and maximum voice
| service duration
| SIP core standards and variety of drafts supported
| Proprietary link layer protocol for controlling
| Any 3rd-party softphone / ATA/ Gateway / IP Phone /
| IAD and SIP proxy / Registrar / SBC supported
| The most comprehensive codec including G711 /
| 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 of firewall modification is required
| Excellent voice quality without any latency and
| performance compromise
| Small footprint terminal SDK
| Available on all major platforms
|
| Technical Specification
| Support UDP, TCP, RTP / RTCP, T.38 Fax, SIP – RTC3261~3266,
| STUN-RFC3489, Symmetric Response-RFC3581, DNS / TFTP / Radius
| wrapper
|
| VGCP Family Components
| VGBC (Voice Guard@ Border Controller)
| VoiceGuard@ SDk for softphone / ATA / Gateway / IAD
| / IP Phone (available on Windows, Embedded Linux)
| VoiceGuard@ Plug-in (VG Plug-in) for Windows & Linux
| VoiceGuard Standalone Client(VGSC) for Windows
| VGSPE VoIP Security Phone adapter
|
| Lynn
| MSN: svoipsales@hotmail.com
| Homepage: www.speed-voip.com |
|
