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 [eg. 8400]
2. Press ‘Dial’/’Send’

Once you press ‘Dial’ the phone you called will be engaged and you can talk to the other person.  The other person won’t have to touch the phone to talk back.

Sometimes the receiver of the intercom call will have to press ‘0’ to unmute their mic and talk back.

Note:  This can only be done with a office phone set like the SPA series from Cisco or Yealink phone.