Useful Information
40
Noise is heard, sound cuts in
and out.
L
You are using the handset or base unit in an
area with high electrical interference. Re-
position the base unit and use the handset
away from sources of interference.
L
The GSM network signal is weak. Check the
current status (page 13) and move the base
unit to a new location until the GSM network
indicator lights green.
L
Move the handset closer to the base unit.
The handset does not ring.
L
The ringer volume is turned off. Adjust ringer
volume (page 22).
I cannot make a call.
L
The base unit’s AC adaptor is not connected.
Check the connections.
L
The base unit is not in a GSM network service
coverage area. Check the current status
(page 13) and move the base unit to a new
location until the GSM network indicator lights
green.
L
The handset is too far from the base unit.
Move closer and try again.
L
Another unit is in use. Wait and try again later.
L
Outgoing calls are barred. Cancel the
outgoing call bar settings (page 26).
I cannot receive a call.
L
The base unit’s AC adaptor is not connected.
Check the connections.
L
The base unit is not in a GSM network service
coverage area. Check the current status
(page 13) and move the base unit to a new
location until the GSM network indicator lights
green.
L
Incoming calls are barred. Cancel the
incoming call bar settings (page 26).
Emergency calls cannot be
made.
L
You are not in a GSM network service
coverage area. Check the current status
(page 13) and move the base unit to a new
location until the GSM network indicator lights
green.
L
There is no SIM card in the base unit.
Problem
Cause/solution
TW501NZ(e).book Page 40 Wednesday, September 16, 2009 3:00 PM
