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Introduction To CUCM Wildcards

In this post we will lean some of Cisco CUCM wildcards. They are used in route patterns and translation patterns.  I lay down the most popular CUCM wildcards in the paragraphs below.

the X wildcard

The X wildcard replaces only one character. For example, 587X pattern has 10 combinations: from 5870 to 5879.

The @ wildcard

The @ wildcard is a macro. Each time you use it, CUCM replaces it with a number of route patterns that correspond to the numbering plan you chose. For example, if you choose to use the North American numbering plan with the @ wildcard, CUCM will internally generate some US route patterns such as the following:
[2-9]11
[2-9]XXXXXX
[2-9]XX[2-9]XXXXXX
1[2-9]XX[2-9]XXXXXX
011!
So let’s say you have two gateways that you want to use for egress calls. You assign the first gateway to the @ route pattern and the second to the XXXXXXX route pattern. The call will be routed through the first gateway, because there is the route pattern [2-9]XXXXXX, which is a better match than XXXXXXX.

The brackets [] wildcard

With a bracketed pattern, you can have any digit from the available options. for example, [165]223 pattern has the following possibilities:

  • 1223
  • 6223
  • 5223

The negated brackets wildcard

the X wildcard

The X wildcard replaces only one character

The + wildcard

This wildcard means “one or more of the preceding character”. For example, 444[165]+ pattern can have the following possibilities: 4441, 444111, 44466,…

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