User`s guide

Troubleshooting 117
Syn248 SB35020/SB35025 Deskset User’s Guide Back to Contents
The Deskset shows no indication that the headset is on a call.
A buzzing sound on my cordless headset.
Unable to deregister cordless headset.
Probable Cause Corrective Action
The headset is registered to
another Deskset. If others
are using headsets in your
vicinity, someone may have
accidentally registered your
headset to their Deskset.
 If nearby people have headsets, they may have
accidentally registered your headset to one of
their Desksets.
a. Verify that a headset is registered to your Deskset.
See
“Registering an Optional Cordless
Headset (SB35025 Only)” on page 86
.
b. If a headset is registered, it may not be yours.
Deregister your headset from the Deskset,
and ask all users in the vicinity to deregister
their headsets. See “Deregistering a Cordless
Headset” on page 87.
c. Start the registration process again, but with
one user at a time registering a headset. See
“Registering an Optional Cordless Headset
(SB35025 Only)” on page 86.
Probable Cause Corrective Action
Noise interference.  Move the headset at least 12 inches away from
the Deskset.
 Other electronic products can cause interference
with your cordless headset. Try using your
headset as far away from these types of
electronic devices as possible: television sets,
microwaves, or other cordless telephones.
Probable Cause Corrective Action
The Deskset is unavailable
(powered off, out of range, or
removed from the system).
 Deregister the headset at the headset. On a
TL7600 model headset, press: VOL+ –> MUTE –>
VOL– –> MUTE –> VOL+ –> VOL– –> MUTE.
On a TL7800 model headset, press: VOL+ –>
–> VOL– –> –> VOL+ –> VOL– –> .
You cannot identify or locate
the Deskset that the headset
is registered to.
 If the headset is registered to an unknown
Deskset which has AC power, you must carry the
headset out of range of the Deskset and perform
the deregistration sequence described above.
You will know when the headset is out of range
when you press ON/OFF and you hear three
beeps and no dial tone.