Step 3: Click on the Extension Manager menu item.
Step 4: Click on the Extension sub-menu item.
Step 5: Select the correct extension.
Step 6: Click on the Registration tab at the top.
Step 7: Click on the “Add Registration” button
Step 8: Fill in the details
Step 9: Click “Apply” to save the registration.
Step 10: Tick the 'Ring Inbound' option, which will allow your extension and registration to ring.
Note: You may only have up to 2 registrations, and it is recommended to use the following naming scheme'RickCell' or 'RickDeskPhone'. This consists of the person's name and device being used.