TD 92644EN
User Manual
Ascom d81 DECT Handset
Appendix A. Bluetooth Headset
117
18 June 2018 / Ver. K
A.12 Operation Notice
A.12.1 Accessibility and Voice quality
Bluetooth uses the frequency of 2.45 GHz. WLAN, microwave ovens, and other devices that
use the same frequency can disturb the use of a Bluetooth headset.
A.12.2 Operation Area
Maximum distance between the headset and the handset is 10 metres. The communication
distance between the handset 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.12.3 Out of Range
If a connection cannot be made with the selected Bluetooth headset, the call is transferred
automatically to the handset.
If the Bluetooth headset and the handset 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. In case of
more than one paired headset in list, the preferred headset used for calls, is always first in
list.
A.13 Environmental Requirements
A.13.1 Bluetooth Headset Battery
See the manual for the Bluetooth headset.
A.14 Troubleshooting
Problem Reason Solution
No headset found Headset is turned off Turn on headset
Headset is out of battery Charge headset
Headset is out of range Move headset closer to handset
< 10 metre.
Headset is not in pairing
mode
Turn headset into pairing mode
(see headset manual for details)
Pairing fails Headset is not in pairing
mode
Turn headset into pairing/
discoverable mode (see headset
manual for details)
Incorrect PIN entered Try again and enter correct PIN
(see headset manual for details)
Connecting fails/Failed
to connect headset
Headset is not turned on Turn on headset
Headset is out of range Move headset closer to handset
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