Configuring 3CX with AIVO Connect

Prerequisites

• A working 3CX installation (V18 or V20).
• An AIVO Connect SIP connection with credentials.
• Your SIP credentials from the AIVO dashboard: username, password, SIP server.

Step 1: Create the SIP Trunk

1. In the 3CX Management Console, go to SIP Trunks.
2. Click Add SIP Trunk.
3. Select Generic SIP Trunk from the provider list.
4. Enter the following:

1. Click OK to save.

Step 2: Configure DID Numbers

1. On the SIP Trunk page, go to the DIDs tab.
2. Click Add DID.
3. Enter your AIVO phone number.
4. Set the Route to your desired destination (ring group, IVR, extension).
5. Click OK.

Step 3: Create Outbound Rules

1. Go to Outbound Rules.
2. Click Add.
3. Enter:

• Rule Name: AIVO Outbound
• Calls to numbers starting with: Leave blank for all calls, or set specific prefixes.
• Calls from extension(s): All or specific extensions.
• Route 1: Select AIVO Connect trunk.

1. Set the Number of digits to strip and Prepend as needed:

• To add country code: Strip 0, Prepend +1 (for US).

1. Click OK.

Step 4: Codec Configuration

1. On the SIP Trunk settings, go to the Codecs tab.
2. Enable:

• G.722 (preferred)
• G.711 (A-law and U-law)

1. Disable codecs not supported by AIVO Connect (e.g., G.729, iLBC).
2. Click OK.

Testing

Verify Registration

1. Go to SIP Trunks in the dashboard.
2. The trunk status should show a green icon indicating it is registered.
3. If it shows red, check your credentials and network connectivity.

Test Inbound Call

1. Call your AIVO number from an external phone.
2. Verify the call routes to the correct destination in 3CX.
3. Answer and confirm two-way audio.

Test Outbound Call

1. Pick up a 3CX extension and dial an external number.
2. Verify the call connects.
3. Confirm the correct caller ID is shown on the receiving end.

Check Call Quality

1. During a test call, listen for echo, delay, or choppy audio.
2. If you experience issues, see Troubleshooting Call Quality.

Common Issues

Trunk Shows Unregistered

• Verify credentials are correct (copy-paste from AIVO dashboard to avoid typos).
• Check that your firewall allows SIP traffic (see SIP Network Configuration).
• Disable SIP ALG on your router.

Outbound Calls Fail

• Check your outbound rule dial patterns.
• Verify the trunk is selected as Route 1 in the outbound rule.
• Ensure you have available channels (simultaneous calls) on your plan.

Caller ID Not Showing

• Set the Outbound Caller ID in the trunk settings to your AIVO number in E.164 format (+1XXXXXXXXXX).
• Ensure the number is assigned to the connection in AIVO.