Toshiba DK424I, dk14, DK40I manual Post 1995 North American Numbering Plan NANP, 4-17, Plans 4~6

Toll Restriction

Program 45-1 – LCR/Toll Restriction Dial Plan

Plan 3

♦Plan 3 is 1+AC+NXX/NXX. Use this plan where a user places a long distance call to a destination outside the area code by dialing a 1 before dialing the area code. The user places a long distance call to a destination in the same area code by simply dialing the number, without a 1 in front. The office codes are interchangeable. The system differentiates between them whenever it sees the digit 1 dialed.

When using this plan, the system recognizes the following:

♦

♦

♦

If 1 is the first number entered in an 11-digit string, the next three digits are an area code.

A 10-digit string is not recognized.

The first three digits in a seven-digit string are an office code. (There is no distinction between local call dialing and long distance dialing within the area code.)

♦Digits 5~7 in an 11-digit string may be an interchangeable office code as well.

Plans 4~6

Not used in the United States.

Post 1995 North American Numbering Plan (NANP)

Plans 7~9 use the NANP established January 1995. DK14, DK40i, and all DK424 and DK424i processors provide plans 7~9.

♦Prefix 1 is used only when followed by an area code. The area code can be the home area code, depending on the telephone company’s plan in that state.

♦Area/Office code numbering schemes – All area codes and office codes will have the format NXX, making the new plan have both interchangeable area codes as well as interchangeable office codes.

♦Intra-area code toll calls can be according to a seven-digit only plan in some states. In this case, a seven-digit call may be a local call or a toll call. Therefore, only particular office codes can determine a toll call for a seven-digit call, not the dial plan in 45-1.

Changing System Dialing Plan for NANP from a Station

For NANP upgraded SW version, the dial plan can also be changed from the station port 000 (default station 10, 100, or 200).

➤To change the System Dialing Plan for the North American Dialing Plan

Toll Restriction

1.With the handset on-hook, press a [DN] + ￿￿￿￿.

2.Enter ￿￿￿￿.

3.Enter the one-digit (X) for the system dialing plan (X = 1, 2, 3, 7, 8, or 9).

You hear a confirmation tone. X is the current system dialing plan 1, 2, 3, 7, 8, or 9.

You hear a confirmation tone.

You hear a confirmation tone.

NANP=X KEY CODE=

CODE=6267 NANP=

CODE=6267 NANP=X

Strata DK Programming 5/00 4-17