While the controlling accessory is not the Remote Microphone, you may switch to another accessory
by pressing the PTT button on that accessory. Taking that accessory off-hook does not change the
controlling accessory. This allows a second user to listen to received audio on another accessory.
If the controlling accessory is placed on-hook this clears the call unless customised differently. Other
accessories can be put back on-hook without clearing the call in progress.
All earpiece audio is left on all the time in order that multiple users may listen to the received audio.
The audio presentation for duplex (telephone) calls depends on the capability of the controlling
accessory. With a duplex controlling accessory, duplex calls have a duplex presentation. With a half-
duplex accessory, half-duplex (Group) calls are controlled using the PTT button.
User Guide 3
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