[Asterisk-Users] Re: router UDP timeout

[Hagen Rode]

How about using CNG (comfort noise generation) on the client? That might do
the trick. Any better ideas?

>Asterisk does not support silence suppression - you should configure the
>cleints not to suppress silence. Not sure if "keep alive" packets would do
>the trick.

>Rob

>On 22/03/06, Steven Langley <steven at intellinc.co.za> wrote:
>
> Hi there
>
> I am using an IAX2 softphone built from the IaxClient library dialing into
> Meetme conferences. The IaxClient seems to use silence suppression, and
> not
> sure if this can be disabled. The client works fine through most routers,
> but for some it disconnects the client after about 5 minutes and gives
> this
> error in the asterisk logs:
>
> Chan_iax2.c:1480 attempt_transmit: Max retries exceeded to host 146.18.3.5
> on IAX2/bob at 146.18.3.5:4569/3 (type = 2, subclass = 1024, ts=655380,
> seqno=177).
>
> My guess is that the timeout for UDP on the router is set to quite a low
> value and it times out if there is no data sent from the client to the
> server for this amount of time. Would a solution be to send a packet of
> silence every minute or so?
>
> Many thanks
>
> Steven Langley
>