DTMF display in Console not working

Asterisk Asterisk Support
1

Apologies in advance if this has been answered. I searched the community and documentation, but could not find anything that helped.

Asterisk 20.5.2

I am trying to get DTMF to show up in the Asterisk console. In logger.conf I have DTMF set for messages and console. I have console running at 10 verbosity.

Our Asterisk acts as a B2BUA SBC between two PBXs via SIP trunks. We are using RFC4733 DTMF. DTMF is not displayed on the console when sent by either side. It also does not show up in the messages log.

What am I missing here?

Thank you!

2

Is DTMF actually being received? Are you using direct media so DTMF doesn’t flow through Asterisk?

3

DTMF is being received on the far end and I see it in TCPDump/wireshark. No Direct Media.

4

Then you’ll need to show logs with debug level including “rtp set debug on”, as well as the actual configuration.

5

On second thought, I need to double check if direct media is somehow being negotiated for this particular paging provider I am investigating. Thanks for the tip. I’ll get back to you on that.