EXPANDINGTHE PHONE SYSTEM
Private Lines
You can use the fourth line on each extension 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 phone knows which lines are shared and which are private. (You can physically wire lines with different telephone numbers into each unit for Line 4.)
The chart below shows 16 extensions, each sharing the first three lines.
Lines in System
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| L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 | L11 | L12 | L13 | L14 | L15 | L16 | L17 | L18 | L19 |
| EXT 11 | ✔ | ✔ | ✔ | ✔ |
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| EXT 12 | ✔ | ✔ | ✔ |
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| EXT 13 | ✔ | ✔ | ✔ |
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Extensions | EXT 14 | ✔ | ✔ | ✔ |
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EXT 15 | ✔ | ✔ | ✔ |
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| EXT 16 | ✔ | ✔ | ✔ |
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| EXT 17 | ✔ | ✔ | ✔ |
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| EXT 18 | ✔ | ✔ | ✔ |
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Intercom | EXT 19 | ✔ | ✔ | ✔ |
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EXT 20 | ✔ | ✔ | ✔ |
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| EXT 21 | ✔ | ✔ | ✔ |
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| EXT 22 | ✔ | ✔ | ✔ |
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| EXT 23 | ✔ | ✔ | ✔ |
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| EXT 24 | ✔ | ✔ | ✔ |
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| EXT 25 | ✔ | ✔ | ✔ |
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| EXT 26 | ✔ | ✔ | ✔ |
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