Hello all,
Ive been having a problem i cant seem to figure out, and i can see from various Google and list searches that i havent been the only one having this, but havent been able to find a solution yet for more than 3 weeks. Ive a bit frustrate to solve current problem.
Ive got 4 UAs here. User agent A & C & D are located under WLAN, and user agent B located in the same LAN as SIP server and STUN server. User agent A & C connected to a restricted NAT that used STUN server to discover its own public IP.
User agent A & C are mobile phone. (OS : window mobile 5.0) User agent D is softphone install in laptop. (OS : window XP)
When calls gets sent from Box A to Box C (remote) i get a problem with the one-way audio(incoming caller can hear my voice, but i cant hear them). While, calls from Box A to Box D was successful. Both calls are form the same structure, how come calls work on A to D ???
(D) | (A)-----[NAT]-----------[NAT]---------------[SIP Proxy]-----(B) | | (C) [STUN server]
*** SIP server and STUN server have assigned different public IP adress. SIP server : OPENSER + RTP Proxy in OPENSUSE Linux. Box A, C : Ageet softphone. Box B ,D : X-Lite softphone.
Hope some of you out there are able to help me out a bit, its getting a bit annoying not being able to hear people calling me.
Regards, Kum