SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.
VOIPCLI
We offer Tier1 A-z direct routes. Our core direct routes are
Pakistan ,India, Bangladesh, Sri Lanka, Egypt, Saudi arabia,Nepal, Uae, Uk,Usa ,canada.
Top 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