We tried to connect remote IP Phone 7940 to CCM4.1(3). CCM has public Ip adress and 7940 is behind NAT (DEbian machine). Phone has registered normally, call is connected, but I have only one way RTP. RTP from IPT is going well, no RTP to IPT. I think, there is a problem in NAT. Is there a way how to travers NAT for RTP? When I am using IP communicator, solution is using my public IP address in item Preferences/audio/network. How to fix this issue with HW IP phone?
Many thanks for replies