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@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 _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
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