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No busy tone, 3CX just disconnects, users are confused

Discussion in '3CX Phone System - General' started by decalabs, Feb 1, 2017.

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  1. decalabs

    Sep 21, 2016
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    since we have installed our 3CX, all users are complaining that some calls are just disconnected when they dial a number.

    In the event log I can see the following errors:

    486 Busy Here (<- thats the majority of errors)
    500 Internal Server Error
    480 Temporarily not available

    The main problem is that the users won't get ANY feedback what is happening. The call just disconnects when the line is busy. So the users just try again. We had angry clients who called us back and asked why we are calling every minute while they were talking. They saw our tries on their phones.

    So please where can we switch the busy tones on?

    Thanks in advance,
  2. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

    May 10, 2016
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    Hello @decalabs

    Please try the following and let me know if that works. Call an extension that does not have accept multiple calls enabled and in the destination busy or unregistered select end call so that the call does not get forwarded.

    Call the same extension from a different extension and tell me if you hear a busy tone. Then navigate to settings/ PBX and enable Play busy prompt when extension is busy and make the same test. Does it change?


    and then try in on an outbound call and see if that works. Usually you are not getting a busy prompt when you are making outbound calls because your provider doesn't sent a busy tone.
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