I can’t seem to get DTMF to work on calls the way I need to.
I have an A400 card in a PBXAct box with 8 FXS and 4 FXO. When on a call FreePBX not passing the DTMF on the FXS lines. I get a slight chirp sometimes but most of the time it’s just a “thunk” or click.
Our IP phones are Sangoma S705’s and S505’s. They show the same issue as on the FXO lines (old conference phones no one wants to give up) which can make dialing up a conference a royal pain when you can’t enter the conference ID#. Like I said I get a slight chirp sometimes but most of the time it’s just a “thunk” or click.
What setting(s) do I need to concern myself with to get DTMF to work while on call instead of, I’m guessing, being interpreted?
Right now I have “SIP DTMF Signaling” set to “auto” on the FreePBX Advanced Settings page.