9/1553-ANF 901 54 Uen L1 2016-03-09
8
DBC 420
The telephone performs a test that the data circuits in the telephone work. If all goes
well the Inquiry lamp is lit for 1 second.
The telephone is automatically registered to the PBX. When the telephone is registered
the Status lamp is lit (steady light).
The start up procedure normally takes about one minute. If the telephone needs to
update the firmware (FW), the start up procedure can take between two and three
minutes.
Figure 3:
Indications on Status Lamp
2.7
LOGGING ON THE TELEPHONE
The telephone is always logged on with a default number. You cannot log on or log off.
2.8 LOGGING
OFF
You cannot log off your IP telephone.
2.9
CHECKING SOFTWARE VERSION
It is only possible for the administrator to check the software version in the telephone
(using the Web interface).
2.10 FAULT
LOCATING
This section contains information on how to solve common operational problems, and
warnings that might occur.
Table 1
Fault Locating and Actions
Fault
Probable cause
Action or comment
The telephone is
locked up
Disturbance on the LAN
Restart the telephone by
pressing the keys
C
(clear),
mute
and
#
simultaneously for
one to two seconds
Status lamp blinking
with a double flash
There is no connection to the
LAN
Check that the LAN cable
between the LAN outlet and the
telephone is connected
