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The session initiation protocol (SIP) is the IETF signaling protocol for VoIP (voice over Internet protocol) and other text and multimedia sessions. 3GPP has begun the evolution to "all IP access" with the introduction of MSC Server-SGSN split in Release 4 and subsequent introduction of the IP multimedia sub-system (IMS) in Release 5 and 6. The long term evolution of 3GPP strives to achieve...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.