Aastra DT4x3 DECT Telephones User Manual page 96

User Manual
Aastra DT4x3 DECT Telephones
A.14 Troubleshooting
Problem
No headset found
Pairing fails
Connecting fails/Failed to
connect headset
Headset can not connect
to handset (see headset
manual for details on how
to connect)
31 October 2013 / Ver. C
Reason
Headset is turned off
Headset is out of battery Charge headset
Headset is out of range
Headset is not in pairing
mode
Headset is not in pairing
mode
Incorrect PIN entered
Headset is not turned on Turn on headset
Headset is out of range
Link key in headset has
been deleted
Headset is already
connected to another
handset
Too close to disturbing
devices.
Handset is not turned on Turn on handset
Handset is out of range
Bluetooth module is
disabled
Another headset is
already connected to the
handset
Link key is missing in
either headset or handset.
Too close to disturbing
devices.
TD 92789EN
Solution
Turn on headset
Move headset closer to handset 
< 10 metre.
Turn headset into pairing mode (see
headset manual for details)
Turn headset into pairing/
discoverable mode (see headset
manual for details)
Try again and enter correct PIN (see
headset manual for details)
Move headset closer to handset
Repeat pairing procedure
Disconnect headset from the other
handset
Disturbing devices can be WLAN
equipment, microwave etc.
Move handset closer to headset
Enable "Bluetooth" in Bluetooth
menu
Disconnect the connected headset
Repeat pairing procedure
Disturbing devices can be WLAN
equipment, microwave etc.
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