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  1. Solved Inbound Calls "doesn't match any known extension number"

    Thanks YiannisH_3CX, that is good to know as we were planning on doing the upgrade. Cheers, Tim
  2. Solved Inbound Calls "doesn't match any known extension number"

    Hi Yiannish, We are using Version 15.0.62928.5 and it is running on Windows Server 2012 R2. Cheers, Tim
  3. Solved Inbound Calls "doesn't match any known extension number"

    Hello, I have come across this exact same problem and the fix that Robertos used, running the firewall checker, has resolved the problem. We have been using 3cx for a number of years and have never come across this before. YiannisH_3CX, would you be able to share your secret fix so we don't...
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