[Freeswitch-users] One way Audio

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