Bang & Olufsen EarSet 3i - User Guide - Manual (Page 7)

To decline an incoming call …
> Hold down the centre button for two seconds and let go.
> Two low beeps confirm that you have declined the call.
To switch to an incoming/on-hold call and put the current
call on hold …
> Press the centre button.
> Press again to switch back to the first call.
To switch to an incoming/on-hold call and end the current
call …
> Hold down the centre button for two seconds and let go.
> Two low beeps confirm that you have ended the first call.
Not all features and functions described in this guide are
available on all connectable devices.
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