<P> <BR><BR><FONT SIZE=2><B>kyneoh@dallab.com</B></FONT><BR><FONT SIZE=2>Sent by: users-bounces@openser.org</FONT><BR><FONT SIZE=2>04/11/2007 02:35 PM</FONT><BR><BR> <FONT SIZE=2>To:</FONT> <FONT SIZE=2>users@openser.org</FONT><BR> <FONT SIZE=2>cc:</FONT> <BR> <FONT SIZE=2>bcc:</FONT> <BR> <FONT SIZE=2>Subject:</FONT> <FONT SIZE=2>[Users] One way audio problem (Urgent)</FONT><BR> <BR><BR></P><P><FONT FACE="Monospace,Courier">Hello all,<BR></FONT><BR><FONT FACE="Monospace,Courier">Ive been having a problem i cant seem to figure out, and i can see from<BR>various Google and list searches that i havent been the only one having<BR>this, but havent been able to find a solution yet for more than 3 weeks.<BR>Ive a bit frustrate to solve current problem.<BR></FONT><BR><FONT FACE="Monospace,Courier">Ive got 4 UAs here. User agent A & C & D are located under WLAN, and user<BR>agent B located in the same LAN as SIP server and STUN server.<BR>User agent A & C connected to a restricted NAT that used STUN server to<BR>discover its own public IP.<BR></FONT><BR><FONT FACE="Monospace,Courier">User agent A & C are mobile phone. (OS : window mobile 5.0)<BR>User agent D is softphone install in laptop. (OS : window XP)<BR></FONT><BR><FONT FACE="Monospace,Courier">When calls gets sent from Box A to Box C (remote) i get a problem with the<BR>one-way audio(incoming caller can hear my voice, but i cant hear them).<BR>While, calls from Box A to Box D was successful.<BR>Both calls are form the same structure, how come calls work on A to D ???<BR></FONT><BR><FONT FACE="Monospace,Courier"> (D)<BR> |<BR>(A)-----[NAT]-----------[NAT]---------------[SIP Proxy]-----(B)<BR> | |<BR> (C) [STUN server]<BR></FONT><BR><FONT FACE="Monospace,Courier">*** SIP server and STUN server have assigned different public IP adress.<BR>SIP server : OPENSER + RTP Proxy in OPENSUSE Linux.<BR>Box A, C : Ageet softphone.<BR>Box B ,D : X-Lite softphone.<BR></FONT><BR><FONT FACE="Monospace,Courier">Hope some of you out there are able to help me out a bit, its getting a<BR>bit annoying not being able to hear people calling me.<BR></FONT><BR><FONT FACE="Monospace,Courier">Regards,<BR>Kum<BR></FONT><BR><BR><FONT FACE="Monospace,Courier">_______________________________________________<BR>Users mailing list<BR>Users@openser.org<BR><A HREF=http://openser.org/cgi-bin/mailman/listinfo/users>http://openser.org/cgi-bin/mailman/listinfo/users</A></FONT></P>