3CX - Setup guide
How to setup 3CX to work with a User-Based or IP-Based SIP Trunk
Registering a User-Based SIP Trunk
This is a general guide for configuring TTNC SIP Trunks with 3CX. UI changes may occur between different versions, but it should be possible to use this guide for any recent installations of the software. This guide is based on version 16.
This guide assumes you have successfully installed 3CX and you have the following configured:
- You have configured an Administrative user
- You have created one or more extensions that are registering correctly
Navigate to SIP Trunks
Click + Add SIP Trunk
Under Add SIP Trunk/VoIP Provider, set the following:
Select Country | Generic |
Select Provider in your Country | Generic SIP Trunk |
Main Trunk No | The outbound CLI configured on your Trunk |
Under Trunk Details, set the following:
These details are found in myTTNC.
Enter the name for Trunk | Endpoint nickname |
Registrar/Server/Gateway Hostname or IP | Domain / Outbound Proxy |
Outbound Proxy | Domain / Outbound Proxy |
Number of SIM Calls | You can specify this value |
Under Trunk Details, set the following:
These details are found in myTTNC.
Type of Authentication | Register/Account-Based |
Authentication ID (aka SIP User ID) | Username |
Authentication Password | Password |
Registering an IP-Based SIP Trunk
This is a general guide for configuring TTNC SIP Trunks with 3CX. UI changes may occur between different versions, but it should be possible to use this guide for any recent installations of the software. This guide is based on version 16.
This guide assumes you have successfully installed 3CX and you have the following configured:
- You have configured an Administrative user
- You have created one or more extensions that are registering correctly
Navigate to SIP Trunks
Click + Add SIP Trunk
Under Add SIP Trunk/VoIP Provider, set the following:
Select Country | Generic |
Select Provider in your Country | Generic SIP Trunk |
Main Trunk No | The outbound CLI configured on your Trunk |
Under Trunk Details, set the following:
These details are found in myTTNC.
Enter the name for Trunk | Endpoint nickname |
Registrar/Server/Gateway Hostname or IP | Domain / Outbound Proxy |
Outbound Proxy | Domain / Outbound Proxy |
Number of SIM Calls | You can specify this value |
Under Trunk Details, set the following:
Type of Authentication | Do not require - IP Based |
Configuring a DID Inbound Rule
Navigate to Inbound Rules
Click + Add DID Rule
Under General, give the rule a name to help identify it.
Select the DID/DDI from the dropdown.
Under Route calls to, set the following:
Destination for calls during office hours | Extension | Select the extension |
Configuring a CID Inbound Rule
Navigate to Inbound Rules
Click + Add CID Rule
Under General, give the rule a name to help identify it.
Enter the Caller ID from which you'd like to filter inbound calls.
Under Choose a SIP Trunk to link to this Inbound rule, select the necessary SIP Trunk.
Under Route calls to, set the following:
Destination for calls during office hours | Extension | Select the extension |
Configuring an Outbound Route
Navigate to Outbound Routes
Click + Add
Under General, give the rule a name to help identify it.
Under Apply this rule to these calls, set the following:
Calls to numbers starting with prefix | 0 |
Calls from extension(s) | Enter the extension numbers which will use this outbound rule |
Calls to Numbers with a length of | 9-14 |
Under Make outbound calls on, set the following:
Route | 1 | Select your Trunk |
Updated 28 days ago