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DTMF Decoding | Thales IoT Developer Community

May 10, 2016 - 3:57pm, 3326 views

Hi,

I try to decode DTMF signals on a Cinterion PH8-P ****m during a voice call:

1.Enable event reporting:

at^sind="dtmf",1,2,0

2. Doing a MO voice call

atd+49******;

3. Sending DTMF signals from the called phone/****m

In the standard audio **** detection rate is poor. When I switch to audio **** 6 via

at^snfs=6

detection rate becomes much better. Are there other audio settings which can have effects on DTMF decoding?

Thanks in advance,

Michael