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Fake calls from ext 100

Discussion in '3CX Phone System - General' started by Buddyl, Sep 16, 2013.

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  1. Buddyl

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    Hello,

    I have the 3cx phone system, the Free version. 10.0.24018.2322

    I have an extension at home that connects through the internet (Not using Tunneling) It is a grandsteam phone GXP2120

    I get calls at sporadic times to this extension claiming they are coming from Ext 100.

    We do not have an extension 100. One time I seen a name associated with xt 100 as Sid (maybe sip) Vicious.

    When the call comes in and I answer there is no one there. If I let it ring all of the lines will light up. I usually have to unplug it and reboot.

    Any ideas???

    Thank you

    Buddy
     
  2. bardissi

    bardissi Member

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    Check the call logs to see if that call is coming from an outside IP that isnt yours!
     
  3. leejor

    leejor Well-Known Member

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    You might want to change the port of your device to something other than the (usual) default of 5060. If someone sends a direct SIP call to your IP (and that port number), and guesses your extension number, you will get the call.

    If it happens on a predictable basis, you might want to employ Wireshark to give you some more information about the origination.
     
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