An organization that provides voice over IP (VoIP) service and enables calling from SIP phones to plain-old-telephone (POTS) lines and vice versa. SIP is the universal protocol used for Internet ...
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An organization that interacts with the IETF in setting standards for the Session Initiation Protocol (SIP). The SIP Forum was founded in 1999. See SIP. THIS DEFINITION IS FOR PERSONAL USE ONLY. All ...