[asterisk-users] No audio on ISDN PRI calls

[Anthony Francis]

Get the providers support on the line and I will bet anything you are 
not hitting their side of the line, this is most likely a signaling or 
channel numbering issue.

Anthony

Veselin Kantsev wrote:
> Hello,
> I have a Sangoma A101 connected to an ISDN30 (E1 in the UK) with some
> Snom 300 and Idefisk softphones.
> I can do SIP and IAX2 calls just fine, however I cant get any audio in
> either direction on the Zap channels. When I call in or dial out over
> the ISDN30 (UK E1) I can see the call answered/placed
> on the CLI and then silence follows.
> I've been provisioned 25 out of the 31 channels only at the moment and
> I'm using a "dummy" number given by BT for testing.
> The is no alarms on the line, nor errors on the CLI or in the
> /va/log/messages or wanrouter.
>
> Any ideas?
>
> Thank you much.
> Veselin
>