EXPANDING THE 964 SYSTEM
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
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| L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 | L11 | L12 | L13 | L14 | L15 |
| ICM 11 | ✔ | ✔ | ✔ | ✔ |
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| ICM 12 | ✔ | ✔ | ✔ |
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Stations | ICM 13 | ✔ | ✔ | ✔ |
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ICM 14 | ✔ | ✔ | ✔ |
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ICM 15 | ✔ | ✔ | ✔ |
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| ✔ |
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ICM 16 | ✔ | ✔ | ✔ |
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Intercom |
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ICM 17 | ✔ | ✔ | ✔ |
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| ✔ |
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ICM 18 | ✔ | ✔ | ✔ |
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| ✔ |
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ICM 19 | ✔ | ✔ | ✔ |
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| ✔ |
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ICM 20 | ✔ | ✔ | ✔ |
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| ✔ |
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| ICM 21 | ✔ | ✔ | ✔ |
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| ✔ |
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| ICM 22 | ✔ | ✔ | ✔ |
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| ✔ |
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CENTREX OPERATION
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
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
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