[Freeswitch-users] DTMF Issue - Unexpected digits are receiving

Chandramouli P mouli123 at gmail.com
Mon Nov 5 06:33:09 UTC 2018


Hello Piotr,

Thanks for your reply. But, my issue is how to regenerate this issue? That
is the main problem as I explained.

Thank you.

Regards,
Chandramouli.


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On Thu, Nov 1, 2018 at 10:21 PM Piotr Gregor <piotrek.gregor at gmail.com>
wrote:

> Hi Chandramouli,
>
> This is DTMF association to symbols:
>
>  569      *
>  570      * Tones:
>  571      *          1209 Hz |   1336 Hz     | 1477 Hz   |   1633 Hz
>  572      *  697 Hz  '1'         '2'             '3'         'A'
>  573      *  770 Hz  '4'         '5'             '6'         'B'
>  574      *  852 Hz  '7'         '8'             '9'         'C'
>  575      *  941 Hz  '*'         '0'             '#'         'D'
>
> If the device has different keypad from above then you need to find out
> which key it has mapped to DTMF comprised from 697 Hz/1633 Hz frequencies.
>
> cheers,
> Piotr
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