[asterisk-users] Horrible problem - calls losing sound

[Péter Tóth]

Hi John!

I have the same problem, the system contains 1 port Billion ISDN BRI
card, and 1 sip trunk. This is a trixbox with Asterisk
1.2.22-BRIstuffed-0.3.0-PRE-1y-i

The ISDN call is forwarded to a ring-group. The 6 sip phones are
welltech lp399 series.

If incoming the call get wrong, we can not hear the other side, but
they hear us. In my case the rtp debug shows there are no incoming rtp
packets from asterisk to SIP phone.

If somebody experienced this problem, please help US!

Thanks!


2007/9/20, John Hughes <john at calva.com>:
> We're having a horrid problem with our asterisk setup.
>
> Sometimes calls just go dead - we can't hear what the other end is
> saying.  (I think they can't hear us either).  The call doesn't hang up
> until one of the callers gets bored.
>
> Internaly we use Thomson ST2030 SIP phones.
>
> Externaly we have 3 ISDN BRI lines (6 channels total), connected to an
> Eicon Diver server card (4BRI).
>
> We're using Asterisk 1.4.11 (1.4.11-BRIstuffed-0.4.0-test4) on a Debian
> system, with chan-capi 1.0.1.
>
> Any idea what could be going wrong, where to look &c?
>
>
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       Tóth Péter
Tel.:  +36703834578
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