SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.
M/S NURUL ALAM & SONS
We are the VSP of Bangladesh, forwarding calls with best quality equipment......really you can transmit your calls through us....
Read moreTop countries:
United States 1294
India 440
United Kingdom 425
Canada 348 Bangladesh 338
China 142
Pakistan 134
Australia 133
Spain 123
Russia 114View all countries