Display shows
Probable cause
Action or comment
No flash driver was found
Note:
This display message is only
shown in English.
Failed to read from flash.
Send the handset for service.
Service needed Hardware error
Note:
This display message is only
shown in English.
There is a communication
problem between components in
the handset.
Restart the handset. If the
problem persists, send the
handset for service.
Service needed Invalid IPDI
Note:
This display message is only
shown in English.
Easy replacement procedure not
followed correctly or failure during
easy replacement procedure.
Send the handset for service.
Service needed Parameters
corrupt.
Note:
This display message is only
shown in English.
The handset is defective.
Select
Reset
on the middle soft
key if available or if no
Reset
option is available or fault does
not resolve, the handset needs
repair.
Note:
Display message only shown
in English.
Enter PIN code
The lock of the handset is
activated.
Enter the required PIN code. If
PIN code lost enter new via PDM/
Device Manager or do a factory
reset via PDM/Device Manager.
Battery low, charge now
The battery level is low.
Charge or replace the battery.
Phonebook is not available at the
moment.
The phone book does not
respond, not available at the
moment.
Try again later or if fault persists
do a factory reset via the
Admin
menu or PDM/Device Manager.
Voice mail number not defined
There is no Voice mail number
defined in the handset.
Define a Voice mail number via
PDM/Device Manager.
Could not encrypt connection
The parameter
Encryption
Required
is enabled in the
handset in combination with;
1. Unencrypted base station(s);
and/or,
2. Unsupported base station(s).
1. Disable the
Encryption
required
parameter in
handset via PDM/Device
Manager; and/or,
2. Enable the encryption in the
base station(s); and/or,
Table continues…
Menu operation
August 2019
Using 3735 DECT handsets with Communication Manager and IP Office
104
