AT&T 964 - Manual (Page 37)

70
EXPANDING THE 964 SYSTEM CENTREX OPERATION
71
Setup Checklist
Before expanding your system or installing for Centrex, review the
installation checklist. If you have Centrex, contact your local telephone
company for further information about Centrex service.
• The phone number for Line 1 must be the same on all phones
in order for the Intercom and Page features to work.
• Determine the number of phones that will be on the system.
• Identify the phone that will be the Console phone.
• Identify the private line for the Console phone. The Console
phone must have its own private line. This line is not shared
with any other phone.
• Follow the regular installation instructions in this manual.
• Enable the Console phone.
• Store the Centrex pickup codes and the seven-digit phone
numbers in the directory. See DIRECTORY OPERATION in this
manual.
Enabling the Console Phone
Determine which phone will be the Console phone for your system and
program the Console following the directions to “Set Your Phone to be the
Centrex Console Phone” in SET UP SYSTEM FEATURES. It is recommended
that Line 4 of the Console be programmed as a private line, to be sure a
line is available for Centrex access.
Console Operation
Once another 964 phone has enabled its delayed ring, the Console phone
will receive those calls. All the 964 features work in the same manner as
described in this manual.
The Console phone can pick up other Centrex lines through Centrex
switching. The Console can store the Centrex pickup codes and the
seven-digit phone number of each station, except for the Console phone,
in the directory.
Private Lines
You can use the fourth line on each station as a private line. A private line
is a telephone number assigned to just one extension.
NOTE: You must program the lines you are using at each extension so
that the system knows which lines are shared and which are private
(you cannot physically wire lines with different telephone numbers into
each unit for Line 4).
The chart below shows 12 extensions, each sharing the first three lines
and having its own private line.
Lines in System
Inter
com Sta
tions
L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 L13 L14 L15
ICM 11 ✔ ✔ ✔ ✔
ICM 12 ✔ ✔ ✔ ✔
ICM 13 ✔ ✔ ✔ ✔
ICM 14 ✔ ✔ ✔ ✔
ICM 15 ✔ ✔ ✔ ✔
ICM 16 ✔ ✔ ✔ ✔
ICM 17 ✔ ✔ ✔ ✔
ICM 18 ✔ ✔ ✔ ✔
ICM 19 ✔ ✔ ✔ ✔
ICM 20 ✔ ✔ ✔ ✔
ICM 21 ✔ ✔ ✔ ✔
ICM 22 ✔ ✔ ✔ ✔