Blocking The System From Incoming Calls - AT&T MERLIN 3070 Administration Manual

BLOCKING THE SYSTEM FROM INCOMING CALLS

Before you can make certain hardware changes at the control unit, such as adding
or replacing a Line or Voice Terminal Module, you must first turn off the system. If
you do this while people are making calls, their calls are dropped. So, before mak-
ing these changes at the control unit, you must first be sure no one is using a voice
terminal, and then block ail incoming calls to the system by following the procedure
below.
If you have not already done so, enter administration mode by following the
1.
boxed instructions on page 16.
Touch Adm Opt.
2.
The green light beside Adm Tel goes out, and the green light beside Adm
Opt flashes slowly.
Dial 0.
3.
The green light next to Adm
If the green light next to Adm Opt continues to flash, your system is in use.
When this happens, the system continues to check the lines and voice ter-
minals; when all lines are free, the green light becomes steady and you hear
a 2-beep signal. If you do not want to wait, you can leave administration
mode by following the boxed instructions on page 16 and try again later.
Once you get the 2-beep signal and steady green light, all incoming calls
4.
are blocked, and you can now turn the power off at the control unit in order
to make any changes.
After you have finished making changes, turn the power on. The system
5.
can now receive incoming calls
6.
Continue to administer your system, or, if you have no further system ad-
ministration to do, leave administration mode by following the boxed instruc-
tions on
page 16.
Opt
remains on.
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