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Performance Estimation of a SIP Based Push-to-Talk Service for 3G Networks

Overview This paper presents and evaluates a PTT service for a UMTS network based on the IMS with SIP as the call management protocol that is similar to the proposed PoC service and is inspired by the existing PTT service offered by Nextel. Voice packets are transmitted using the RTP. Talker Arbitration signalling is also sent using the RTP by utilising the RTP header extension field. As this architecture conforms to 3GPP standards it is essentially the same as the architecture that has been submitted for PoC to the OMA.

Further White Paper Details
Publisher	Cork Institute of Technology	File Format	PDF, requires Acrobat Rdr 5
Date Published	December 2003	Downloads	15
Format	White Papers
Topics	Mobile - Wireless Communications, GSM

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