AASTRA DT292 for MX-ONE User Guide EN - Manual (Page 12)

Important User Information
DT292 12
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
euqipment.
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.
Out of coverage
When you leave the system's coverage area there will be a short
beep and a lamp indication.
When re-entering the coverage area it can take a couple of minutes
before the phone automatically has registered into the system.
Networks (menu option)
The menu option Networks should only be used for administration
purposes by service staff. Using this menu option may cause a
logout from the DECT/GAP network, and no further calls will be
possible.
Note: In case of a logout, the phone must be logged on
again by a service technician.