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
Global Voice Networking provides a corporate Voice VPN and SIP Trunk service for multi-site and global customers
Get Your Network Talking with Global Voice Networking