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3CX & Draytek 2960 Router- One Way Voice

Discussion in '3CX Phone System - General' started by SimonCC, Aug 21, 2015.

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  1. SimonCC

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    On a new install of 12.5 SP 2 we have a problem where 50% of the time, voice will only be heard only in one direction. Our Router is a Draytek 2960.

    The Firewall Checker runs ok.

    The issue seems to disappear for a while, then comes back.

    Any clues please?
     
  2. Saqqara

    Saqqara Well-Known Member

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    Maybe check for updated firmware,

    Draytek has been configured as per - http://www.3cx.com/blog/docs/draytek-firewall-voip/
     
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