Preparing For Use; Accessibility And Voice Quality - Aastra DT390 User Manual

DT390
Note: Write down the IPEI code for future use. If you cannot retrieve the IPEI
2.4

Preparing for Use

Before using your phone for the first time, you have charge and connect the
battery, see Section 21.2 on page 89.
Note: Place the phone in the charger and charge it for at least one hour
2.5

Accessibility and Voice Quality

The base network is not always available. If you do not get in contact with
your system, contact your system administrator. For best voice quality, avoid
positioning near computer, radio or similar equipment.
2.5.1 Operating area
You can use your cordless telephone in the area that is covered by the network.
Outside this area you will lose contact with the telephone network. The signal
strength icon, will disappear and No network will be displayed.
2.5.2 Out of Range
When you leave the system coverage area you will hear a short beep and see
a lamp indication, and the text Searching will appear in the display. The out
of range beep will be repeated every minute for 30 minutes. It is possible to
turn the sound off by pressing
can take a couple of minutes before the phone automatically has registered
into the system.
2.5.3 Frequency Range
The handset is a radio transmitter and receiver. When it is on, it receives
and sends out radio frequency (RF) energy. The handset operates on
different frequency ranges depending on market and employs commonly used
modulation techniques:
•
10
A message box with the text IPEI followed by the IPEI number (13 digits) is
shown.
− If the phone lock is on, Enter PIN code is shown.
− Enter the PIN code.
code, please contact your system administrator. Keep the IPEI code
secret to prevent misuse of your phone.
before using it the first time.
EU 1880 - 1900 MHz
. When reentering the coverage area it
1424-EN LZT 103 091 Uen A1 2008-10-27