[Freeswitch-users] Channel Ringing event

[Steven Ayre]

Try also looking for CHANNEL_PROGRESS_MEDIA

Also check the logs to see what's actually happening on the calls. It's
possible for call to go directly to the answer state without having a
ringing state if that's what the callee signals.

-Steve



On 4 June 2013 12:57, mbo <mbodbg at gmx.net> wrote:

> I'm looking for an event on which I can trigger when a channel is ringing.
> From what I have seen in the wiki this should be the CHANNEL_PROGRESS
> event. We have connected freeswitch with a Sangoma A104 card to the PSTN.
> The problem is that we do not always get a CHANNEL_PROGRESS event. It seems
> that the event is only fired when we receive a PROGRESS message in the
> Q.931 protocol, which is not always the case. However in Q.931 we always
> get an ALERT message, which seems not to be translated into a reasonable
> ESL message. We also tried to trigger on the CHANNEL_CALLSTATE event with
> Parameter Original-Channel-Call-State=RINGING,however also this event was
> sometime missing. The field Channel-Call-State is either "ACTIVE", "EARLY"
> or DOWN, but never "RINGING"
>
> Is there any other event I can trigger on, or is it a bug when I never
> receive a CHANNEL_CALLSTATE event with Channel-Call-State=RINIGING?
>
> Thanks
>
> Markus
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