3CX (V20) | SIP Trunk Setup

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1. Log in to 3CX

2. Navigate to the 3CX Admin Console

3. Select Voice & chat

4. Select + Add Trunk

5. Configure the General settings

Get the SIP Trunk's information (retrieve it from the Voxtelesys Portal):

• Country: US
• Trunk: Voxtelesys
• Main trunk number: Fill in the Voxtelesys SIP Trunk number in the E164 format.
• Authentication ID (SIP User ID): From Voxtelesys
• Authentication password: From Voxtelesys

6. Set the Default Outbound Caller ID

• Default Outbound Caller ID: Set the number in the E164 format as the example shows.

7. Configure DID Numbers (optional)

Optional - Add more DID numbers here:

8. Configure SMS settings (optional)

Optional - Enable SMS here:

9. Verify SIP Trunk's Registration

Save and verify that the Voxtelesys SIP Trunk registered.

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