50 lines
2.1 KiB
Plaintext
50 lines
2.1 KiB
Plaintext
---------------------------------------
|
||
[The World of Cryton: *ELITE*]
|
||
|
||
|
||
The Numbering Plan
|
||
by
|
||
Terminus
|
||
|
||
This file was originally displayed on MetroNet: 'The Intelligent Phreak's
|
||
Choice' @ 301-944-3023 * 24 hours.Other Systems and Sysops may use this file as
|
||
long as they retain these credits intact.Thanks!
|
||
|
||
Dial Telephone Service has many prerequisites,but none are more fundamental
|
||
than a numbering plan.This numbering plan establishes the structure within
|
||
which dialing procedures can be applied.It must accomodate:
|
||
|
||
o All authorized address devices
|
||
o All users,including those concerned with system testing and maintenance.
|
||
|
||
Dialing must follow a prescribed sequence.First there may be a need for one
|
||
or more prefix digits; next, the address must be transmitted; and finally a
|
||
suffix may apply.The basic address format ( used in North America ) consists of
|
||
10 digits with a 3-3-4 subdivision,corresponding to (1) the numbering plan area
|
||
code,(2) the central office code,and (3) the station number. With
|
||
international direct distance dialing (IDDD),standards become a matter of
|
||
global concern.In 1964,a CCITT study established 11 digits as a preferred
|
||
maximum length for international numbers.The following world assignments have
|
||
been made:
|
||
|
||
1 Canada,United States
|
||
2 Africa
|
||
3,4 Europe
|
||
5 Central and South America
|
||
6 South Pacific
|
||
7 Soviet Union
|
||
8 North Pacific
|
||
9 Far and Middle East
|
||
0 Spare
|
||
|
||
But there is no standardization in the way the dialing is done for inter-
|
||
national connections.Germany,Switzerland,and Italy use '00' to access an
|
||
international line,and '0' to access a national long distance (area code)
|
||
number.Correspondingly,France uses '19' and '16' followed by the inter-
|
||
national or area code.
|
||
|
||
[>Downloaded from The World of Cryton<] [414] 462-8978 *ELITE* Phreaker's Club]
|
||
SPECTRE - [714] 795/4017
|
||
---------------------------------------
|
||
Call The Works BBS - 1600+ Textfiles! - [914]/238-8195 - 300/1200 - Always Open
|
||
|