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  • Site Codec Settings

    We currently have all sites configured with the following Codecís which were set at installation time.

    Intra-Site Calls: High Bandwidth Codecs
    Inter-Site Calls: Very Low Bandwidth Codecs

    High Bandwidth
    G722/8000
    BV32/16000
    L16/8000
    PCMU/8000
    DVI4/8000
    BV16/8000
    G729/8000

    Very Low Bandwidth
    G729/8000
    PCMU/8000

    We are not convinced this is optimal and would like some recommendations for us to put in place.

    Shoretel 8.1
    All sites have links varying between 512k and 2M. All links cater for data traffic primarily SAP. Each site has an E1 trunk that feeds back to a central WG at the head office call centre. The actual HQ server is in a data centre not the head office itself.

    Thank you
    Regards, J

  • #2
    We have had some issues with this as well.
    I built my own Codec's and name them:

    Intra-site - using only the PCMU\8000, G.711 & G.729 Codecs
    Inter-site - using only the PCMU\8000, G.729 Codecs

    This fixed my issues.
    You may have to play around with all the different ones to see what works best for you.
    Hope this helps.

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    • #3
      What did you use for the bandwidth on the G.711 when you built it?

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      • #4
        Codec List

        I like to keep the codecs for inter and intra site calls the same when possible. That way the audio is of "consistent" quality. All the calls will sound the same. If one codec is good enough for calls between sites, then it is good enough for all calls right?

        We use only PCMU/8000 for all calls.

        That being said, on your sites with only 512k PCMU8000 may not be a good fit..... depending on how many simultaneous calls you could be expecting.

        From the lists you have published, I would think you would run into some complaints about:
        1. Voice quality "differences"... some calls sound good/some bad
        2. Some talking into a "tin can" complaints
        3. Cricket noises on speaker calls, etc

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