GENNUM Z-280 - Manual (Page 23)

first call on-hold
the PINCH button until you hear , then
immediately release the button to between an active and a held
call
the PINCH button until you hear , then
immediately release the button, to the waiting call and
the original call
the PINCH button until you hear , then
immediately release the button,to the waiting call
the PINCH button until you hear , then
immediately release the button,to release all held calls
While on an active call,
To MUTE the call, the PINCH button. You will
hear , indicating the headset has been
muted
To UNMUTE the call,
the PINCH button. The
periodic beeps will stop,indicating that the call has been un-muted.
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Press and hold 1 beep
swap
Press and hold 2 beeps
accept hang-up
Press and hold 3 beeps
reject
Press and hold 4 beeps
briefly press and release
1 beep followed by periodic beeps
briefly press and release
Mute/ Unmute
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Page 23