ISP blocking VoIP in some countries, even though VPN solutions cant bypass the blockage. ITSP is busy to change the blocked IP ports to new ones everyday due to the serious block environment.
VGCP can help ITSP, reseller, and enterpriser users. Also we provide the service to those who meet termination blocking. They can't make and receive the call from abroad. It makes two-way encryption and decryption driven by user-customized policy.
Comparing with others, VoiceGaurd anti-blocking solution has the following advantages:
1. Easy use, no need extra engineer to handle the IP ports everyday
2. Support unlimited concurrent calls
3. High voice quality
4. More cost-effective
5. Support any 3rd-party softphone / ATA / Gateway / IP Phone / IADs, such as Linksys PAP2, X-Lite, etc.
Lynn
MSN:
svoipsales@hotmail.com
Homepage:
www.speed-voip.com