This is a Voice over Internet Protocol (VoIP) and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and Unified Communications facilities
SMM Network Solutions , provides the best quality cheapest routes to South Asian. 24*7 reliable Customer support and high skill technical team makes SMM stand out from others .