CTP Systems CTPhone 1900, Applications Manual

Page: 96 / 132

5-8 DOC00101-01
Diagnostics and Troubleshooting
NO SERVICE! message
You pressed CALL on a handset that is not locked, due to being out of
range or all eight channels of the base station are being used for other
calls (or all four channels of the “Mini” base station are in use).
Try powering off and powering on the handset or try moving to another
location closer to a system base station. A handset is properly locked
when you see the handset date, time, and signal strength icons after
power up.
You may also receive this message if the CTPhone Controller or base sta-
tion is being reset.
SYSTEM BUSY message
The handset was locked onto a base station when the CALL key was
pressed and was able to request service, but did not get an answer from
the base station. One or more base station channels may be in a mainte-
nance busy state or the handset may not be locked well enough to com-
plete the request for service.
Unexpected digits in display
It is very easy to inadvertently press keys on the handset keypad while the
handset is not in use. Consider using the keypad lock feature. To clear dig-
its from the display, use the handset CLR key.
Battery Problems
Battery has diminished talk/standby time
Try discharging and recharging the battery using the instructions on
page 5-17. Another possibility is that a fully charged handset left unpow-
ered for a long period of time will slowly drain.
Make sure users are not removing batteries from the charger before the
green LED appears, because they find that the handset battery strength
icon shows full power after a short period of charging. Users should let the
full charging cycle complete before using batteries. They should also use
the handset during the day and recharge it at the end of the day, rather
than performing intermittent charging during the day.
Charger has green flashing LED
Try recharging the battery using the instructions on page 5-17. If the prob-
lem continues, the battery may be defective.