Hai,
I have a freeswitch setup  in that one asterisk pbx registered. For this setup am facing problem with lower version of yealink phone and grandstreams . Whenever 200 ok came in freeswitch changing IP phone ip to asterisk PBX ip.It is showing messages in FS cli  switch_rtp.c "Auto changing IP PHONE IP to ASTERISK PBX IP " . So no audio is passing to PBX from from IP phone. Still IP phone able to get the incoming calls. Both PBX and IP are in same network. Hopping the earliest reply .

Thanks And Regards

Andrew Paul

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