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3CX Servers address ranges

Discussion in '3CX Phone System - General' started by mrh, Feb 12, 2018.

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  1. mrh

    mrh

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    I'm trying to configure 3cx with our firewall, but for the voip ports I tend to restrict them to known ip addresses.

    Does anyone know which ip addresses the 3cx servers use?

    Many thanks,
     
  2. mariosM_3CX

    mariosM_3CX Support Team
    Staff Member 3CX Support

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    Hello @mrh

    There are no specific addresses that will connect to the sip port of the pbx. For example your voip providers and remote stun extensions will connect to the sip port.
     
  3. mrh

    mrh

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    Thanks - I have all the ip ranges of my SIP providers, but I'm wondering about the servers used, for example, for the tunnelling and the firewall checking?
     
  4. mariosM_3CX

    mariosM_3CX Support Team
    Staff Member 3CX Support

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    In that case you'll need to allow access for your stun servers(primary,secondary,third) configured in MMC >> Settings >> Network
    Tunneling is not using the sip port but 5090 by default
     
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