First, i am sorry for my English.

I use FS 1.4.26 on ubuntu and configured it to use proxy media mode and late negotitation with TLS. My phones are behind nats. So i must configure FS with proxy media.

I can call phones but I don't hear any voice. When i capture the traffic with wireshark i see udp packets sent from phone to server and reverse. but no media. 

If I configure it to bypass media, it works with phone on the same lan, but not for phones behind nats. 

How can i solve this problem.

Thanks