no audio when using mobile connection

[GoogleCodeExporter]

What steps will reproduce the problem?
1. setup a mobile broadband internet connection
2. connect with Chrome to https://151.13.14.14/click2call (it's a test page you 
can do it)
3. press any button to call

What is the expected output? What do you see instead?
When I use a home ADSL internet connection everything is fine, it works!
When I use a 3G internet connection: no audio at all.
Sipml5 and Asterisk consoles are basically the same in both cases.
Watching server pcaps stun seems to fail, but I don't understand why.
Maybe because 3G provider connects my host with an extra nat?
Same thing happens with android mobile device: by adsl (wifi) it works, by 3G no
Same thing happens with windows7 pc: by adsl it works, by 3G no

Scenario:
ok:
[*&webrtc on same host] <-nat 1-1 to public ip-> internet <-ADSL-> Chrome
ko:
[*&webrtc on same host] <-nat 1-1 to public ip-> internet <-3G-> Chrome

Tested 3G connections from different mobile operators with same results.

CentOS server 6.0
Asterisk 11.5.1
webrtc2sip 2.6.0
sipml5 1.3.203
Chrome 31.0.1650.57
Ubuntu client 11.04

Grazie

Original issue reported on code.google.com by fabrizio...@gmail.com on 24 Nov 2013 at 10:05

Attachments:

• ko_server.pcap
• ko_sipml5.log
• ko_webrtc2sip.log
• ok_server.pcap
• ok_sipml5.log
• ok_webrtc2sip.log
• webrtcconfig.xml

[GoogleCodeExporter]

hello there!

i am struggling with same issue for last 5 to 6 months. everything works fine 
on ADSL/WiFi, but no audio on 3G, have you found any solution on this? 

Please reply... 

Original comment by shad.a.s...@gmail.com on 30 Mar 2015 at 7:50

[GoogleCodeExporter]

this is now working on asterisk 11.16.0 version onwards... 

Original comment by shad.a.s...@gmail.com on 7 Apr 2015 at 1:29