DETEWE OpenPhone 28, User Manual

Page: 10 / 84

8
Using Your Telephone OpenPhone 28
The Features of Your
Telephone
Using Your Telephone
General Information
The OpenPhone 28 is a cordless tele-
phone designed for operation in the
OpenCom 100 communications sys-
tem. In addition to convenient
softkey control of system features,
this telephone also offers a variety of
features that allow you to make calls
more easily. You can also operate
your handset in other communica-
tions systems, which means you can
use the same handset in different
places. Furthermore, it is possible to
operate the handset in communica-
tions systems made by other manu-
facturers, as long as they meet the
GAP standard.
Power Supply / Power
Failure / Batteries
This product requires a 230 V alter-
nating current power supply. This
product can only be switched off by
removing the adapter plug from the
mains socket.
The mains supply voltage in some
countries is 110 V. The correspond-
ing adapter plug can be obtained as
accessory. Please consult with cus-
tomer service of your supplier for
this.
In the case of power failure, all mem-
ory storage (program and user data)
are preserved without alteration.
Important tips regarding the use of
the batteries can be found on
page 13.
Usage
This handset, like any cordless tele-
phone, operates using radio signals,
which do not always guarantee a
connection being established under
all circumstances. For this reason,
you should never rely solely upon
any cordless telephone for essential
communication (e.g. medical emer-
gencies).