IVR configuration in GSM trunk

[Thansif]

Issue: Calls Disconnecting After IVR Extension Selection

Hello everyone,

We’re facing an issue with our GSM IVR system. The call successfully lands in the IVR, but when the caller selects an extension, the call does not go through. Instead, it gets disconnected after the allocated response time of 10 seconds. I followed the steps here
https://www.3cx.com/docs/manual/ivr/

Has anyone encountered a similar issue? What could be the possible causes and solutions?

Any insights would be greatly appreciated.

Thanks in advance!

 

[NicholasP_3CX]

That would mean that your gateway is not passing on the DTMF to the PBX.

If the PBX doesnt receive the digits it will not do anything. You would need to do a capture on both the PBX and the gateway, see what is being sent and what is being received. Check the codecs in use on the PBX and the gateway. You may need to adjust these.