codec for HD audio between clients

Discussion in '3CX Phone System - General' started by mirkomiric, Mar 23, 2017.

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

    Mar 23, 2017
    Likes Received:
    Is there a codec that will allow me to record phone calls between 2 3cx clients in HD audio quality? I have tried with all the codecs and still the bandwidth is narrow.
  2. GiannosC_3CX

    GiannosC_3CX Guest

    Hi mirkomiric,

    The codecs G.722, G.729, GSM, G.711a, G.711u are ITU standard and the Phone system uses that codecs on RTP ports between caller and callee for audio communication, basically the codecs encode/decode the digital stream over a data network. Turning to your question, the Phone System saves that recording files in IMA ADPCM, mono 8000 Hz format which have not relationship between communication codecs that you tried. This means that any codec if you chooses, the record file would be in a IMA ADPCM, mono 8000 Hz.
Thread Status:
Not open for further replies.