Enviado el: miércoles, 08 de diciembre de 2010 1:35
On Tue, 7 Dec 2010, Thomas Perron wrote:
A calls B.
B rings
Says connected.
But the call is not bridged and therefor no audio passes.
very simple dial plan.
Does anyone have any short answers on how I can fix this problem:
0) Don't use clouds.
1) Start poking about with wireshark and see if audio is flowing.
If the call is connecting, it sounds like 5060 is being
passed OK. If audio is not being passed, it sounds like...
Well, it doesn't sound like anything, so the problem may be a
router or firewall issue.
As I suggested yesterday, and in accordance with Steve's answer, you should
check if your A and B phones are behind a NAT and, if they are, review the
configuration of your router / firewall. Although it is not clear from your
e-mail which is the complete picture of your system, let's suppose that your
phones A and B are in your LAN, connected through a router to Internet, and
that they both are registered against an Asterisk PBX deployed on a server
hired in the net with possibly a fixed IP and no NAT, neither special firewall
rules that could avoid any type of traffic.
If it is the case, you can see http://www.voip-info.org/wiki/view/NAT+and+VOIP
for information about the issue. There you can read:
...
At first, for both the calling and the called party everything will appear just
fine. The called party will see the calling party's Caller ID and the telephone
will ring while the calling party will hear a ringing feedback tone at the
other end. When the called party picks up the telephone, both the ringing and
the associated ringing feedback tone at the other end will stop as one would
expect. However, the calling party will not hear the called party (one way
audio) and the called party may not hear the calling party either (no audio).
...
In the same place, you can find some avoidances and workarounds for the problem.
Regards,
José Miguel
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