Aastra DT390 User Manual page 105

C P
ORDLESS HONE FOR
105
MX-ONE™
Display shows
Voice mail
number not
defined
Could not
encrypt
connection
No flash driver was
found
Note: This display
message is only
shown in English
Probable cause
There is no voice
mail number defined
in the phone.
The "Encryption
Required" parameter
is enabled in the
phone in combination
with either or both of
the following options:
• one or more encrypted
base stations
• one or more unsup-
ported base stations
Failed to read from
flash
1424-EN/LZT 103 087 Uen F2 2012-03-02
Action or comment
Define a voice mail
number via WinPDM
or CPDM3. Contact
the system
administrator.
Perform one or more
of the following steps:
• Disable the parameter
• Enable the encryption in
the base stations
• Use the supported base
stations.
Make sure to use
base stations of
version 3.1.x or
higher
Send the telephone
for service