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
Gafachi is a wholesale, facilities-based, Voice over IP carrier that has been dedicated to quality, competitive pricing, and expert support since 2001.