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call quality issues

Discussion in '3CX Phone System - General' started by djdanster, Sep 12, 2014.

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  1. djdanster

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    Internal calls are fine and so are the vast majority of external, however it's an extension between an external employee who proxies into our 3cx server and a extension on the local network on the server that is having network issues. The call quality issues seem to be coming from the external employee as the poor line quality is apparent regardless of what extension is called. No other external to internal call is facing poor line quality.

    To clarify, the poor call quality is from the single fixed extension from their home, am I right to think it's an issue on their end?
     
  2. lneblett

    lneblett Well-Known Member

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    Can you define what the poor quality is? It could be a number of things:

    1. Low rate codec
    2. Bad phone at the remote
    3. Insufficient bandwidth
    etc.

    It helps to know what the symptoms are as "poor quality" covers a number of issues and some may be more subjective than others. As an example, if you are using a codec of say g722 internally and the external phone is using a g729 when making its calls, then this may be comparing audio quality of a AM radio station to that of a CD in how tonal quality is perceived. On the other hand, if there is jitter or even dead air (lost packets) then it points to something else all together.
     
  3. djdanster

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    Sorry, yes I should have specified. I'm talking lost packets and jitter.

    thanks
     
  4. lneblett

    lneblett Well-Known Member

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    Ok,, this is possibly a bandwidth issue, so can you define more about how your system - carrier and bandwidths (up & down) at both the remote and server site? It could also be a router issue if the lapses seem to be somewhat consistent.
     
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