What do you need?
To set up the integration with 3CX, you need a number of details from 3CX, which you enter in Atelyr:
Username
Auth Username
Password
Domain
Step 1: Create or find a SIP account in 3CX
Log in to 3CX and click “Admin” in the bottom left. Then click “Users” in the list of options. You'll now see an overview of your existing users. Click the user you want to link, or create a new user.
Once you've created a new user or opened an existing one, click “IP Phone”. Then click “Configure a Phone”, followed by “I will configure the phone myself”. Select the correct interface and click “Add Phone”.
Step 2: Link the SIP account in Atelyr
Once you've added the “IP Phone”, 3CX shows the corresponding SIP details. Use the overview below to see which 3CX field matches which field in Atelyr:
3CX field | Example value | Field in Atelyr |
Extension Number | 2001 | Username |
Authentication ID | cFzOoNCzX7 | Auth Username |
Authentication password | ••••••••• | Password |
Registrar Hostname or IP | ….3cx.eu | Domain |
Registrar SIP Port | 5060 | Port |
Copy the details and go to Atelyr:
In Atelyr, choose “Connect to telecom provider or PBX”.
Select the country you operate in.
Open the advanced settings.
Fill in the details according to the table above.
Click “Test SIP connection” at the bottom.
Note Leave the “Outbound Proxy” field empty. |
Not registering correctly? Edit the SIP account in 3CX, change the password, and repeat Step 2.
Registration successful? You'll see a confirmation in Atelyr.
Then click “Deploy (AI Colleague name)”. Atelyr will now prepare and activate the AI Colleague.
Security Never share your SIP credentials publicly. They give direct access to your AI Colleague's phone line. |
Step 3: Make the user reachable in 3CX
To make the AI Colleague reachable for callers, link the user/extension to your call flow in 3CX. Can't figure it out? Contact your 3CX provider.
All set!
Your AI Colleague is now registered in both 3CX and Atelyr. You can call the AI Colleague internally using the extension you entered (in this example: 2001).



