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8-38 STRATA CS ADMINISTRATOR MANUAL
BETA DOCUMENT - PRELIMINARY & CONFIDENTIAL
Defining patterns to match the dialed digits
You can include any of the characters listed below in the Digits dialed that the
routing rule uses to match digits received (see “Use this rule under the following
conditions” on page 8-36).
Routing rules can match the exact digits in phone numbers, such as 16173540600,
or use number patterns that include variables to match all dialed digits that fall
into a more general category. For example, using the pattern
1617Nxxxxxx
to
match the dialed digits would match all phone numbers in the 617 area code. The
pattern
1NxxNxxxxxx
could be used to match any long distance number in the
North American Numbering Plan.
By default, the system defines the following routing variables:
n
N
matches any digit from 2-9. These are the initial digits used in exchanges
and area codes.
n
x
matches any digits (0-9).
n
~
matches any sequence of digits and asterisks to the end of dialed digits.
This creates an ambiguous timeout (see “Avoiding dialing ambiguities”
on page 8-8).
You also can define your own routing variables to match combinations of digits,
as described in “Adding new routing variables” on page 8-38.
Here are some examples of match patterns and the phone numbers that these
patterns would match:
n
1617Nxxxxxx
matches
16173540600
and any other seven-digit phone
number in the 617 area code.
n
1617~
matches
1617
,
16173540600
,
16173540600123456789
, or any other
set of digits following “1617”.
n
Nxxxxxx
matches
3540600
,
2000000
, or any other seven digits in which
the first digit is from 2-9.
Adding new routing variables
Routing rules use a set of variables to define the phone numbers to be matched.
By default, the system defines the routing variables
N
and
x
(see “Defining
patterns to match the dialed digits” on page 8-38). You may want to define
additional routing variables that match individual digits or combinations of digits,
such as area codes or exchanges.
For example, if you are in the 617 area code and calls to the 617, 781, and 508
area codes have the same low cost over certain trunks, you could create a new
routing variable
AAA
that matches the digit sequences 617, 781, and 508. By using
the
AAA
routing variable, for example, in a
1
AAA
Nxxxxxx
match pattern, you could