AASTRA DT690 - Manual (Page 5)

1424-EN/LZT103 088 Uen F5 2012-03-14 5
I NTRODUCTION
1.5 Accessibility and Voice Quality
The base network is not always available. If you cannot connect to the
system, contact the system administrator. For best voice quality, avoid
positioning yourself near a computer, a radio, or similar equipment.
1.5.1 Operating area
You can use your cordless phone in the area that is covered by the
network. Outside this area you will lose contact with the phone network.
The signal strength icon,
, will disappear and the text No System will
be displayed.
1.5.2 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. To switch off the beep, press and hold the mute key,
.
When reentering the coverage area, it takes a few minutes before the
phone registers into the system.
1.5.3 Standby Time
Poor radio signals (far away from the system base station) reduce the
handset standby and talk times. High loudspeaker or ringer volume,
frequent key activation and display illumination as well as active vibra-
tion alarm and Bluetooth operation, are features that can specifically
shorten standby and talk times.