5
B. OpEraTiON
receiving a call
Pick up the handset to answer the call.
Making a call
Pick up the handset to dial the desired number or press
SOS
.
adjust handset volume
Press the volume buttons
to lower or increase the volume of the handset.
When you hang up, the volume will return to low level.
To redial the last number dialed
Press
REDIAL
key to dial the last number dialled. After five minutes the number will
disappear automatically.
programme the SOS button
In off-hook mode, press
PROG
– press desired number and press
PROG
, then press
SOS
.
In off-hook mode, press
SOS
, the programmed number will be dialled.
Message Waiting indicator (MWi)
It is compatible with high voltage neon/90V and Lucent low voltage system.
Other MWI signalling systems must be confirmed by the factory and implemented
in production.
The MWI will flash if there is a message. Please dial the telephone number for
voice mail to retrieve the message.
The MWI is also a ringing indicator, which will flash if there is a call or a message.
C. MaiNTENaNCE
•
Do not expose this product to dust, strong sunlight, humidity, high
temperature, or mechanical shock.
•
Do not use corrosive or abrasive cleansers on this product.
Keep the unit dust free by wiping it with a soft, dry cloth.
D. TrOuBlESHOOTiNG
1.
No dialing tone
•
Check the telephone network
•
Check the connection of handset cord and straight line cord
2.
No ringing or no continuous ring
•
Check the telephone line
•
Check the quantity of parallel phone set
•
Check flash settings
3.
Noise during talk
•
Check the telephone line
•
Check the handset cord
Summary of Contents for HT20
Page 1: ...Telephone HT20 User Manual...
