Dismiss Notice
We would like to remind you that we’re updating our login process for all 3CX forums whereby you will be able to login with the same credentials you use for the Partner or Customer Portal. Click here to read more.

3cx 1.1.5 DTMF tones not working

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

Thread Status:
Not open for further replies.
  1. peachey

    Jun 26, 2013
    Likes Received:
    Device Info
    Phone Model: Iphone
    Generation: 3gs
    Firmware Version: 5.16.08
    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

    Jun 2, 2009
    Likes Received:
    the 3CXPhone sends DTMF as RFC2833 and not inband as a tone. so the equipment on the other site must understand this...
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
Thread Status:
Not open for further replies.