How to use VoIP freely in blocking countries?

VoIP is banned in Dubai for a long time. How do you manage it?
Anyone knows VoiceGuard Anti blockage solution from SpeedVoIP. It's said that it help VoIP providers bypass ISP blockage. And we can use VoIP freely.
VGSPE/VGBC/VGSC/VGCommunicator/VGSDK
Lynn
Email: lynn@speed-voip.com