DTMF Tone

[andy.buchan]

Provide the Firmware of your Phone
• Provide the Phone Model:- yealink t20p Firmware Version 9.70.23.6 Hardware Version 7.0.0.60
Also test on Firmware Version 9.72.23.1 Hardware Version 7.0.0.54

• Provide the SIP Platform:- Asterisk voip office Release: 3.1.9.3


Hi,

We have an issue with the phones above when we use a service called Lookout Call.

The service calls phone and requests a responce via dtmf tone, however when you press the button(hash) the phone tries to transfer the call to a different extension.

I have tested every dtmf setting on the phone and the VoIP office but still can not geting it working.

Any help will be greatful.

Thanks
Andy