Starting a Three-Way Intercom Conference

You (A) can have a Three-Way Intercom Conference with two other
Intercom Friends (B and C) by establishing two intercom connections
simultaneously.
1. You (A) need to be paired with two other Intercom Friends (B and
    C) for the Three-Way Intercom Conference.

2. Start an intercom conversation with the First Intercom Friend (C) by
    tapping the Center Button.

3. You (A) can call the Second Intercom Friend (B) by double tapping
    the Center Button, or the Second Intercom Friend (B) may join the
    intercom by making an intercom call to you (A).

4. Now you (A) and two Intercom Friends (B and C) are having a
    Three-Way Intercom Conference.