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3cx 1.1.5 DTMF tones not working

Discussion in 'iOS' started by peachey, Jun 27, 2013.

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  1. peachey

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    Device Info
    -------------------------------------------------------
    Phone Model: Iphone
    Generation: 3gs
    Firmware Version: 5.16.08
    Jailbreak:no
    Cydia Installed: no

    Issue Info
    -------------------------------------------------------
    Handset: phone
    Contacts: local
    Connection: wifi
    Server: external

    I have 3cx iphone app version 1.1.5. The DTMF tones do not register. I do not see anywhere in the 3cx settings where you can change dtmf. My voip provider is Viatalk and I have called them but they don't have an answer. Curiously enough, when I call their customer support the dtmf tones register. Every other place I call the tones are unrecognized. I have also installed the 3cx tunnel iphone app but that does not seem to work with an outside voip provider. (or I do not know what settings to input.) Any help would be much appreciated.
     
  2. StefanW

    StefanW Head of Customer Support and Training
    Staff Member 3CX Support

    Joined:
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    the 3CXPhone sends DTMF as RFC2833 and not inband as a tone. so the equipment on the other site must understand this...
     
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