You can have a Three-Way Conference Phone Call by adding an Intercom Friend to the mobile phone conversation.
1. During a mobile phone call, tap the Center Button to invite one of your Intercom Friends to the conversation.
2. To disconnect the intercom during a conference phone call, tap the Center Button.
3. To disconnect the mobile phone call during a conference phone call, press the Center Button for 2 seconds.
When you have an incoming intercom call during a mobile phone call, you will hear a voice
prompt, “Intercom requested.”