Product manual

Maintenance, Fault finding procedures
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
34
NO DIAL TONE
Go of f hook
Call icon visible?
(flashing or stable)
Reset cordless phone
by removing and
reconnecting its battery.
Switch on and go off
hook.
Call icon visible
now?
Cordless phone
defect
N
Y
Call icon?
No speech channels available in
base stations, SPUs, SPU-Ss or
SLUs:
Try again later or on another
location.
If this doesn't solve the problem,
the cordless phone is defect.
Cordless phone
programmed for an
LTU?
N
Y
Y
Cordless phone okay
now dial tone will be
heard
B
N
Turns of
f after some
flashing.
Stable
END
General alarm?
N
Y
GENERAL ALARM
Check that associated extension
number is registered in PBX
and not blocked. Otherwise
cordless phone is defective.
Cordless phone
programmed for DTU.
010