Aastra DT690 User Manual page 138

DT690
Bluetooth is optional to the cordless telephone to use a Bluetooth headset.
Bluetooth is factory-mounted on the cordless telephone's circuit board.
The supported functions are:
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23.9.1 Using Bluetooth Headset
For optimal performance, place the Bluetooth headset and the telephone on
the same side of your body. The best audio quality in the headset is achieved
when there is no obstructions between the headset and the cordless telephone.
Note: The Bluetooth headset functions may vary. Refer to the Bluetooth
Add another Bluetooth headset
Up to four headsets can be paired to the telephone, but only one at a time
can be active.
To pair another headset follow the instructions given inConnect a Bluetooth
headset section. The paired headsets are displayed by a default name in the
Headset menu.
Activate a Bluetooth headset
To activate a Bluetooth headset:
1. Go to Bluetooth, Headset.
2. Use the navigation key and press Yes.
3. Select Connect and press Yes.
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Pairing the cordless telephone with its headset.
Choosing the device to use when making a call.
Playing a ring signal through the Bluetooth headset.
Answering and connecting sound to the Bluetooth Headset when answering
with the headset button.
Ending a call with the Bluetooth headset button.
Transferring audio to/from the Bluetooth headset during a call, using the
menu in the cordless telephone.
Increasing/decreasing the volume in the Bluetooth headset with the volume
buttons on the cordless telephone.
headset Manual.
The headset is now active. Note: The current active headset must be
deactivated before another headset can be activated.
1424-EN/LZT 103 090 Uen A1 2008-10-24