DTMF - Outband mode for DTMF

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Hello,

I'm using Zoiper on my Android v10
I'm facing an issue with the use of Style DTMF menu.
Any of possible modes on Zoiper doesn't work with my device. The dial
tone are not recognized.
I have to use an OUTBAND mode (cf RFC4733), is it possible ? and not an
Inband mode.
The 5 modes available (Disable, RFC-2833, SIP INFO Numeric, SIP INFO symbolic, Inband) dont work for me.

Regards,

Jerome


asked Jun 1 in Android by Jerome14 (120 points)  
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