To call intercom someone within your organization and give them the ability to answer without having to pickup the phone.
1. Dial 8 + extension number
2. Press ‘Dial’/’Send’
Once you press ‘Dial’ the phone you called will be engaged and you can talk and hear the other person. The other person won’t have to touch the phone to talk back.
Note: This can only be done with a office phone set like the SPA series from Cisco.