Sennheiser MM 450 Instruction Manual page 20

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Remote-controlling a mobile phone from the MM 450
If your headset has a Bluetooth connection to your mobile phone, the
LED on the headset flashes to indicate that the mobile phone is
ringing. The LED flashes 3 times blue. After a pause, the flashing is
repeated. You can also hear the ring tone of your mobile phone if your
mobile phone supports this function.
Switching the Bluetooth function off
If you press the
function switches off!
You can use the MM 450 to remote-control different functions of your
mobile phone.
If the mobile phones rings:
Button Duration
or
or
or
If the mobile phone is switched on, does not ring and you do not make a
phone call:
Button Duration Function
Redials the last number (acknowledgement tone)
1 s
Activates voice dial
During a call:
Button Duration Function
Transfers the ongoing call back to the mobile phone
5s
Activates the muting function
(acknowledgement tone)
2s
Any button Deactivates the muting function
Bluetooth button too long, the Bluetooth
Function
Accepts the call
Rejects the call
(acknowledgement tone)
2s
Ends the call
Using the MM 450
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