Linksys SPA922 Dial Plan Rules, Digit Sequence Syntax, Element Repetition, Intersequence Tones

Configuring a Dial Plan

Dial Plan Entry	Function
[2-9]xxxxxx	Dials 7-digit US local number
1xxx[2-9]xxxxxx	Dials US 1 + 10-digit long distance number
xxxxxxxxxx.	Dials all other numbers, including international long
	distance

Dial Plan Rules

This section describes the rules that apply to configuring and interpreting dial plans.

NOTE: White space in a dial plan script is ignored, but it may be used for readability.

Digit Sequence Syntax

Each digit sequence within the dial plan consists of a series of elements, which are individually matched to the keys pressed by the user. Elements can be one of the following:

•Individual keys 0, 1, 2 . . . 9, *, #.

•The letter x matches any one numeric digit (0 .. 9)

•A subset of keys within brackets (allows ranges): for example, [389] means 3 or 8 or 9)

–Numeric ranges (n-n) are allowed within the brackets: for example, [2-9] means any digit from 2 through 9)

–Ranges can be combined with other keys: e.g. [235-8*] means 2 or 3 or 5 or 6 or 7 or 8 or *.

Element Repetition

Any element can be repeated zero or more times by appending a period (.) to the element. Thus, “01.” matches “0”, “01”, “011”, “0111”, … and so on.

Sub-sequence Substitution

A sub-sequence of keys (possibly empty) can be automatically replaced with a different sub- sequence using an angle bracket notation: < dialed-subsequence : transmitted- subsequence >. So, for example, “<8:1650>xxxxxxx” would match “85551212” and transmit “16505551212”.

Intersequence Tones

An “outside line” dial tone can be generated within a sequence by appending a comma (,) between digits. Thus, the sequence “9, 1xxxxxxxxxx” sounds an “outside line” dial tone after the user presses 9, until the 1 is pressed.

Linksys SPA9x2 Administration Guide 184