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DTMF Question

Discussion in '3CX Phone System - General' started by Mbacicc, Jan 13, 2008.

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  1. Mbacicc

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    What does it mean?
    It doesn't recognize inputs
    Thanks
    Mbacicc
     
  2. igor.snezhko

    igor.snezhko Active Member

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    I guess you 3CX box trying to call some VOIP provider that cannot support DTMF using RTP payload (RFC2833).
     
  3. LORD ORION

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    You can see RTP payload events in wireshark. So check to see if they are there.

    Basically, trace a call you used DTMF with wireshark and then
    1) Statistics -> VOIP Calls
    2) Graph

    If the events are there and not being recieved, trying increasing MTU in small increments.
     
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