Operational Features
41-001160-01, Rev 00, Release 2.3
5-49
Configuring Operational Features
Local Dial Plan
A dial plan describes the number and pattern of digits that a user dials to reach a
particular telephone number. Access codes, area codes, specialized codes, and
combinations of the number of digits dialed are all part of a dial plan. For
instance, the North American Public Switched Telephone Network (PSTN) uses a
10-digit dial plan that includes a 3-digit area code and a 7-digit telephone number.
Most PBXs support variable length dial plans that use 3 to 11 digits. Dial plans
must comply with the telephone networks to which they connect. Only totally
private voice networks that are not linked to the PSTN or to other PBXs can use
any dial plan.
The IP phones have local dial plan capacity. You configure the SIP Local Dial
Plan using the Aastra Web UI or the configuration files.
The IP phone SIP local dial plan available symbols are as follows:
Dial Plan Example
An example of a SIP Local Dial Plan is:
[01]XXX|[2-8]XXXX|91XXXXXX
XXXX|X+.|*XX
Symbol
Description
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Digit symbol
;
Allows a secondary dial tone to be audible before dialing a
number.
X
Match any digit symbol (wildcard)
*, #, .
Other keypad symbol
|
Expression inclusive OR
+
0 or more of the preceding digit symbol or [] expression
[]
Symbol inclusive OR
-
Used only with [], represent a range of acceptable symbols;
For example, [2-8]
;
Used when a secondary dial tone is required on the phone.
(For example, “9;xxxxxx”, when a user has to dial “9” to get
and outside line and needs a secondary dial one presented
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