Aastra DT690 User Manual page 122

DT690
Display shows
No system
The telephone beeps
once a minute (during
max 30 minutes) with
a low tone followed by
a high tone (if enabled,
the vibrator also follows
the beeps).
SERVICE NEEDED
Parameters
corrupt
Battery low
Enter IPEI
Phonebook is not
available at the
moment
Voice mail number
not defined
(1) This display message only shown in English
116
Probable cause
The telephone is out of
coverage or telephone
is defective.
The telephone is
defective.
The battery level is low.
The phone is blocked,
that is, if you have
entered the wrong PIN
code more than three
times.
The phonebook does
not respond, not
available at the moment.
There is no Voice mail
number defined in the
telephone.
1424-EN/LZT 103 088 Uen A2 2008-11-21
Action or comment
Stop the beep with the
Sound off key and go
into range, or contact
system administrator.
(When re-entering
the coverage area it
can take a couple of
minutes before the
telephone automatically
has registered into the
system.)
Select reset option on
the middle soft key if
available or if no reset
option is available or
fault does not resolve
the telephone needs
(1)
repair.
Charge the battery.
Enter the IPEI code and
press .
Try again later. If fault
persists, contact your
system administrator.
Define a Voice mail
number via Desk
PDM/CPDM.