Can’t hear MOH from PSTN

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2010/10/24 Olivier

> Hello,
>
> My setup is :
> phone —– PSTN/ISDN —– Patton SN4638 ——- Asterisk
>
> (Asterisk is in 1.6.1.18, Patton in 5.3)
>
> When I call the Asterisk, I can read from console that :
> – the call comes in,
> – the line MusicOnHold(,10) in my diaplan is reached and played,
> – I see RTP packets coming in and out
> (hundreds of lines such as:
> Got RTP packet from 192.168.102.200:4890 (type 00, seq 005360, ts
> 2343932047, len 000160)
> Sent RTP packet to 192.168.102.200:4890 (type 00, seq 036824, ts
> 082080, len 000160)
> )
> – but I can’t hear anything on my end.
>
> When I tried this system locally, I could hear the MOH (but now, I can’t
> try any local operation from my location).
>
> I was thinking of a codec issue but I can’t see why and where.
>
> Suggestions ?
>
> Regards
>
> PS: If this helps, I’m using default MOH .wav files in
/var/lib/asterisk/moh directory.