Dial Plan
7-3
7
Dial Plan
Dial-plan strings specify key sequences used for specific calling features (Transfer,
New Call, 3-way conference), as well as defining call restriction filters.
A dial plan can filter 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 can all be part of a dial plan. This
enables a user to predefine dialling sequences that are permitted.
The dial-plan string consists of a single digit rule. A typical example of a dial-plan
string is: [0123]xxxxxx.t
Three standard dial plans are defined; Call Transfer Key, New Call Key, and 3-way
Conference. Up to 10 other dial plans can be defined by the user.
Figure 7-2 Dial Plan Settings
The function of elements allowed in a dial plan are described in the table below:
Table 7-1. Dial Plan Elements
Element
Example
Description
x
xxxx
Represents a digit of any value ( 0 to 9) that can be dialed on a
phone. This example has a rule with four digits of any number.
.
xx.
Indicates zero or more occurrences of the previous symbol. The
example acts like a wildcard, meaning any dialed phone number of
two or more digits is allowed.
0-9
01xx
Indicates dialed digits that must be matched. This example only
allows four-digit numbers starting “01.”
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