> I would suggest first to make sure that asterisk is receiving DTMF fine from > your IP devices/phones. Do you have a test IVR where you can dial and press > digits and verify that asterisk is responding?
Made a quick IVR, and its working for both sides of the asterisk (between the provider and asterisk, and between the sip phones and asterisk). I think its an issue with DTMF Pass-through. Is there a way to disable DMTF passthrough? Maybe asterisk is blocking the signals from being repeated to the other party?
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