Handover: Switching between speakers
Especially for simultaneous interpretation you might want to have two or more people take turns to speak.
In this case, they can easily take over the channel, without interruption for the listeners.
Handover works in both directions:
1) If you are the active speaker, you can ask the other person for hand over. The other person will be notified and can accept or decline.
2) If you are the not active speaker, you can force take over the channel if necessary.
By the way: While the other person is speaking, the not active interpreter can listen to her.