Beko BD-300 - Manual (Page 18)

You need to subscribe to the Caller Display feature from your service provider.
The caller may have withheld their number, or they may be calling from a network that does
not transmit the Caller ID (for example, it may be an international call).
The handset’s battery is running low within an hour or two.
Before you used the handset for the first time, you should have left it on the base unit for up
to 15 hours to charge the batteries fully.
You may need to replace the batteries.
I cannot transfer a call.
Make sure the other handset is within range of the base unit, and is not busy on a call.
Make sure you are keying in the correct number for the other handset.
No display on LCD screen.
Make sure the batteries have power.
I cannot register handset to base
Make sure the number of handset registered to base is less than 4.
Check that the base unit is not near other electrical equipment, such as TV or computer
Technical details
Full DECT GAP Compatible system
Standard
: Digital Enhanced Cordless Telecommunications (DECT)
Frequency range : 1.88 to 1.9 GHz
Channel bandwidth : 1.728 MHz
Modulation : GMSK
Operating range : Up to 300 m outdoors; Up to 50 m indoors
Operating time : Standby time: 90 hours ; Talking time: 8 hours
Temperature range : Operating 0
0
C to 40
0
C; Storage -20
0
C to 60
0
C
Electrical power : Handset--- two 1.2V 550mAH NiMH rechargeable Batteries
Base unit---input 230 V AC, 50 Hz; Output AC 7.5V, 350 mA.