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Discussion in '3CX Phone System - General' started by phxlad, Jun 26, 2011.

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  1. phxlad

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    The log is receiving a number of entries like the following that I do not know how to reconcile. The extension does not "appear" to register and currently no out bound calls are made.

    How should I interpret these entries.


    08:47:05.962 [CM306003]: SIP IP:port mapping (184.98.171.73:5060) resolved by STUN server 216.93.246.16:3478 differs from the one (184.98.171.73:1028 resolved by STUN server 178.238.134.190
    08:47:05.947 [CM306003]: SIP IP:port mapping (184.98.171.73:1028) resolved by STUN server 216.93.246.16:3478 differs from the one (184.98.171.73:5060 resolved by STUN server 178.238.134.190
    08:47:05.775 [CM306003]: SIP IP:port mapping (184.98.171.73:1028) resolved by STUN server 96.9.132.83:3478 differs from the one (184.98.171.73:5060 resolved by STUN server 216.93.246.16
    08:47:05.775 [CM306003]: SIP IP:port mapping (184.98.171.73:5060) resolved by STUN server 96.9.132.83:3478 differs from the one (184.98.171.73:1028 resolved by STUN server 216.93.246.16
    08:47:05.572 [CM506001]: STUN request to resolve SIP external IP:port mapping is sent to STUN server 96.9.132.83:3478 over Transport 192.168.254.109:5060
    08:47:05.572 [CM506001]: STUN request to resolve SIP external IP:port mapping is sent to STUN server 96.9.132.83:3478 over Transport 192.168.254.16:5060


    Thanks
     
  2. SY

    SY Well-Known Member
    3CX Support

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    it says about NAT.
    The NAT is (at least) "port restricted" which is not suitable for PBX...
    For PBX, the "full cone NAT" is mandatory. Otherwise - PBX will have intermittent problems with remote devices
     
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