Step 1: Click on PBX

Step 2: Click on Trunks

Step 2: Click on add SIP Trunk

Step 4: Give the Trunk Name and Outbound Caller ID

Step 5: Set the Outgoing and Incoming Settings

Outgoing Settings:

Trunk Name: DIDX Peer Details: Host: Ip Address Type: Peer

Incoming Settings:

User Context: DIDX User Details: Host: Ip Address Type: Peer

Step 6: Set registration settings

Step 7: Click on Inbound routes