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Information About

Dialing Plan




In the U.S., some typical ''dial plans'' include:
  • Internal extension numbers of two, three, or four digits.

  • Local numbers of seven or ten digits, which may be preceded by a 9 if required to access an outside line.

  • Long distance numbers of eleven digits, consisting of a 1, then a three-digit area code, then a seven-digit number; Preceded by a 9 if required.

  • International numbers of any length starting with 011 and preceded by a 9 if required



SYNTAX

The following syntax used to identify a ''dial plan'' in a digit map is adapted from 2705 .

Some ''dial plan'' examples using the above syntax look as follows: