3CX | Update Trunk from Registration to IP Auth

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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.

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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!