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3CX v15 don't forward DTMF when internal.

Discussion in '3CX Phone System - General' started by zccit, Aug 29, 2016.

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  1. zccit

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    Hello,

    Situation:
    3CX v15
    Phones
    Door stations Axis

    Goal:
    Call Door Station, push DTMF code, open a gate.

    Problem:
    When a extention is extern, the DTMF codes are send to the Door Station
    When a extention is intern, is seems 3CX server is not forwarding the DTMF tones.

    We do a lot of configurations, codecs, phone devices, BRIA apps, .... same result

    Help

    See also a drawing somebody made a while ago.
    [​IMG]



    Regards,
    Jan Mourik
    ZCC-IT
     
  2. jed

    jed New Member

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    Hi Jan

    Try to change the extension Options for your Intercom to let PBX Delivers Audio..

    /Jesper
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. leejor

    leejor Well-Known Member

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    It may also be a DTMF setting that has to be changed (one end or the other). In many cases, a SIP message (of the DTMF tone) can be sent, and that will work. Some devices, on the other hand, want the actual DTMF (audio) tone, which may require a settings change. Some Codecs don't handle DTMF audio very well, especially some low bit-rate Codecs.
     
  4. zccit

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    Thanks for the reply's,

    We are still investigating.
    Tips welcome :)

    Regards,
    Jan
     
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