3CX: Update Trunk from Registration to IP auth

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  • 3CX: Update Trunk from Registration to IP auth
  • 3CX: Update Trunk from Registration to IP auth


    1. Select "SIP Trunks"

    2. Select your Voxtelesys SIP Trunk and Edit

    3. Update the following under your SIP Trunk:

    Registrar/Server/Gateway Hostname or IP: IP Address Provided by Voxtelesys

    Number of SIM Calls: Call limit with Voxtelesys

    Type of Authentication: Do not require - IP Based

    Authentication ID (aka SIP User ID): Leave blank

    Authentication Password: Leave blank

    You may need to create firewall rules to support traffic from our IP address to your PBX system.


    If you need help configuring your trunk or inbound numbers check out the guides below! More Voxtelesys Portal Guides here!

    For more 3CX Guides, click here!