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Description: SIP Forum - a non-profit industry organization that promotes the advancement and adoption of the SIP protocol

Keywords: SIP, VoIP, Voice over IP, Instant Messaging, IM, RTP, SDP, Session Initiation Protocol, NGN, Convergence, RFC 3261, SIPPING, SIMPLE, Presence, SIP Phone, SIP Products, SIP Trunking, IP Communications, SIPconnect, SIPCONNECT, Sipconnect, SIP Interoperability, SIPit, SIPIT, Sipit