[Linphone-users] Missing DTMF

[The PowerTool]

Hi,

I've been using Linphone on Android for many years as a secondary option, which I liked.

I successfully dial and receive calls.

I am hoping to use Linphone on my Android as a primary option and, in testing, have run into a problem.

My droid Linphone is connected to an Asterisk PBX.

I just noticed DTMF does not seem to be working in some cases (as mentioned, I can dial-out).

When I try to access voicemail the PBX doesn't seem to respond when I enter my mailbox number.

When I noticed this my next test was to try DTMF on another service.  I called a customer support number and tried to use DTMF.  That didn't work, either.

I do not hear the tones.

Can anyone please offer some suggestions on how I can get this working?

Thank you very much!