AT&T SB67030 System Administrator Manual page 135

AT&T SB67010 Gateway, SB67030 Deskset System Administrator's Guide
Symptom
Cannot deregister Headset.
Cordless Headset Troubleshooting
Probable Cause
The Deskset is unavailable. Deregister the Headset at the Deskset.
If the Deskset is unavailable (powered off, out of
range, or no longer in the office) or you do not
know what Deskset it is registered to, you can
deregister the Headset by pressing a special
Headset key sequence: VOL+ -> MUTE -> VOL ->
MUTE -> VOL+ -> VOL- -> MUTE.
135
Corrective Action