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What is SIP and SIP Trunking?

Session Initiation Protocol (SIP) has become the common signaling standard for real-time communications for Voice over Internet Protocol (VoIP). SIP is an open-standard which enables Qos Communications customers to seamlessly connect existing customer premise equipment (CPE) with our carrier class voice network. A SIP Trunk is a virtual phone line that utilizes a Broadband connection for access, and offers up to 40% savings over traditional telephone lines.