TD 92474EN
31 October 2013 / Ver. H
User Manual
Aastra DT69x DECT Telephones
77
A.13 Operation Notice
A.13.1 Accessibility and Voice quality
Bluetooth uses the frequency of 2.45 GHz. WLAN, microwave oven, and other devices that
use the same frequency can disturb the use of a Bluetooth headset.
A.13.2 Operation Area
Maximum distance between the headset and the telephone is 10 metres. The
communication distance between the telephone and headset may vary considerably due to
the environment and disturbances from other 2.45 GHz equipment. Different headsets can
also give different communication distances.
A.13.3 Out of Range
If a connection cannot be made with the selected Bluetooth headset the call is transferred
automatically to the telephone.
If the Bluetooth headset and the telephone get out of range from each other the connection
is temporarily lost. Since the last connected headset is always considered "selected", the
connection is automatically established again when a call is made or received.
A.14 Environmental Requirements
A.14.1 Bluetooth Headset Battery
See the manual for the Bluetooth headset.
