AT&T TRIMLINE TR1909 User Manual page 36

Telephone with caller id/call waiting
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Appendix
Troubleshooting
IN USE light
does not go
on.
The IN USE
light is flashing
slowly.
Screen is
blank.
Make sure four new AA batteries have been
installed properly.
Make sure that all telephone on the same
line are hung up.
Inspect the telephone line cord connections
at the wall jack.
Make sure the coiled handset cord is properly
and securely connected to the handset and
the telephone base.
Make sure four new AA batteries are installed
properly (see Battery installation on page 6).
You must subscribe to caller ID service from
your local telephone service provider to see
call information on the screen (see About
caller ID on page 25).
32

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