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
IP Store is the best phone seller that offers business phone system, expandable phone system, phone systems, Bluetooth phone system, best cordless phone system etc.