Nortel Networks Option 11C Mini manual Determining new extension numbers

Appendix B – Changing preprogrammed data Page 317 of 332

6Select “4 INSTALLATION OPTIONS” by entering the number “4”. The character display reads:

1 DEFAULT SETS

2 NUMBERING PLAN

7Select “2 NUMBERING PLAN” by entering the number “2”. The character display reads:

FIRST NUMBER (XXXX)?

8To create a new first number, enter the digits you want and press the pound key.

The first number you enter in the numbering plan is assigned to slot 1, unit zero of the Main Chassis. The default numbers assigned to the remaining card and unit combinations are in sequence, assuming each slot has up to 16 units.

—————————— End of Procedure ——————————

Determining new extension numbers

Perform the following procedure to change the default numbering plan, and to determine the extension number to assign to a specific telephone:

Procedure 45

Determine the extension number

1Identify the line card to which the telephone is connected. Take the card slot number associated with the card and subtract 1.

2Multiply this number by 16.

3Add the first extension number in the new numbering plan.

4Identify the unit number the telephone terminates on, and add it to the result from step 3.

—————————— End of Procedure ——————————

Option 11C Mini Planning and Installation Guide