SSRC CONFLICT CONTROL METHOD IN POC SERVICE

摘要

An SSRC(Synchronization Source) collision control method in the PoC(Push to talk over Cellular) service is provided to be capable of newly generating/using an SSRC even though SSRC collision occurs in the PoC service, thus a call can be consecutively made without terminating an RTP(Real time Transport Protocol) session. When an RTP packet is received(S400), a client analyzes header of the received RTP packet(S405). The client decides whether an SSRC of the received packet is the same as a self SSRC(S410). If so, the client generates a new SSRC(S415). The client transmits the newly generated SSRC to a server(S420). However, if the SSRC is not identical to the self SSRC, a process for controlling SSRC collision is terminated.