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•
A parameter specification with an empty parameter value forces the parameter back to its
default value. To specify an empty string instead, use the empty string
“”
as the parameter
value.
3.5.2. Dial
Plan
The SPA allows each line to be configured with a distinct dial plan. The dial plan specifies how to
interpret digit sequences dialed by the user, and how to convert those sequences into an outbound
dial string.
The SPA syntax for the dial plan closely resembles the corresponding syntax specified by MGCP and
MEGACO. Some extensions are added that are useful in an end-point.
The dial plan functionality is regulated by the following configurable parameters:
•
Interdigit_Long_Timer
•
Interdigit_Short_Timer
•
Dial_Plan ([1] and [2])
Other timers are configurable via parameters, but do not directly pertain to the dial plan itself. They
are discussed elsewhere in this document.
Interdigit Long Timer:
ParName: Interdigit_Long_Timer
Default: 10
The Interdigit_Long_Timer specifies the default maximum time (in seconds) allowed between dialed
digits, when no candidate digit sequence is as yet complete (see discussion of Dial_Plan parameter
for an explanation of candidate digit sequences).
Interdigit Short Timer:
ParName: Interdigit_Short_Timer
Default: 3
The Interdigit_Short_Timer specifies the default maximum time (in seconds) allowed between dialed
digits, when at least one candidate digit sequence is complete as dialed (see discussion of Dial_Plan
parameter for an explanation of candidate digit sequences).
Dial Plan[1] and Dial Plan[2]:
ParName:
Dial_Plan[1] and Dial_Plan[2]
Default:
( *xx | [3469]11 | 0 | 00 | <:1408>[2-9]xxxxxx |
1[2-9]xx[2-9]xxxxxx | 011x. )
