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| VoIP Settings
Dial Plan
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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
Five standard dial plans are defined; Call Transfer Key, New Call Key, Set
Speed Dial Key, Speed Dial Key, and 3-way Conference. Up to 10 other dial
plans can be defined by the user.
Figure 48: Dial Plan Settings
The function of elements allowed in a dial plan are described in the table
below:
Table 5: 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. ”