Elastix does not recognize event congested line

Asterisk Asterisk Support
#1

regards,
I have an unusual problem. I have configured two IP trunks configured on freePBX-2.8.1-17,asterisk-11.11.0-0,elastix 2.4. Everything works fine except that sometimes when the user makes an outgoing call, the PBX responds with music on hold. After some testing I found that the problem is related if the destination number is congested or have damaged the line. The phone provider sends a message when one of these events happens, but Elastix does not communicate this message, unlike sends music on hold.

This suggests to the user that Elastix has a problem, but in reality is just a congestion problem line or line damage.
How I can fix this? As Elastix can detect and notify the event correctly or to supply the error message supplied by the phone provider?

#2

This is not the place for supporting GUIs.

What message is being sent?

Have you configured music on hold instead of ring back tone? Otherwise, I would only expect music if there was an explicit indication that the line was on hold, from the remote end.

#3

If they are sending you the message through a voice message , you should try using progress()…

This application will request that in-band progress information be provided to the calling channel. This is also known as “early audio” and “early B3” (for example: see Dial option /b in chan_capi-cm).