14
Installation
OpenPhone 28
the handset. The battery symbol is
first displayed in the handset after
the first complete charging cycle!
Place the handset in the charging
compartment
for at least 14 hours
after inserting a new battery
in or-
der to completely charge it.
You can leave the handset perma-
nently in the charging station. The
battery pack can not be over-
charged.
You can remove the battery pack
from the handset if you are not go-
ing to use the telephone for an ex-
tended period of time, for example
when you go on holiday. You will see
that the battery pack will only have
discharged minimally when you re-
install it at a later date.
Do not leave the battery pack in di-
rect sunlight. You will be rewarded
with a long battery life.
Charging and Operating Times
Charging time
: (fully discharged
battery) approximately 5 hours to be
fully charged.
Talk time
: up to 8 hours (when fully
charged).
Stand-by time
: up to 75 hours
(when fully charged).
Please note:
Batteries with an un-
known charging status are fully
charged in approximately 14 hours.
Charge Display
The charging status of the battery is
shown in the display as follows:
Charge warning
When the battery capacity is nearly
exhausted, the battery symbol will
flash in the display.
If you are making a call at the time,
you still have up to three minutes of
talk time before the handset
switches itself off. If you are not
making a call and the handset is not
in the charging station, “Battery
empty” appears in the display. Now
you can no longer make a telephone
call.
Installing and Operating
the Headset
A headset is available as an acces-
sory for the handset:
■
Headset Standard T171
■
alternative: Headset Comfort
TC 500
80 - 100 % charged
60 - 80 % charged
40 - 60 % charged
20 - 40 % charged
0 - 20 % charged
(Frame flashes) Battery
nearly discharged
Summary of Contents for OpenPhone 28
Page 1: ...OpenPhone 28 on the OpenCom 100 Communications System User Guide ...
Page 6: ...4 ...
Page 83: ......