Radio Shack 49-2551A Owner's Manual page 35

Problem
The console appears to be
"locked-up."
Solution
If is on, you might have just switched the
REC/BUSY
console from
INSTALL
sole then plays back the 15 seconds of pre-record-
ed message. If you do not have the earphone
connected, you might think that the console is
locked-up. Wait 15 seconds until
turns off.
If is not on, you might have just tested
REC/BUSY
the system. When the console dials out, and some-
one answers the phone and presses any key, the
console is put into the listen mode for 75 seconds.
If you immediately call the person back or if they
call you, your phone will be busy. Press
the remote and wait for 75 seconds.
to or The con-
RUN 1 RUN 2.
REC/BUSY
DISARM
light
on
35