Friday, January 9, 2009

WildCards in CCM 4.1 Demystified

I had Some problems understanding couple of wild cards the following examples have clarified my concepts in detail.

Numbers to Match---------------------------Route Pattern
2200–2299-------------------------------------22XX
2200–2499-----------------------------------2[2–4]XX
2200–2299 and 2400–2699------------2[24–6]XX

1231[^0-2]6[981]+

The above example illustrates only single entry resides in [], so except the range between 0-2 any single digit number can be matched with this entry. [981] means only 9 8 or 1 can occupy this region.

After all the digits are dialed, if the CCM has more than one route pattern that matches all the digits, the CCM uses the most specific route pattern. For example, consider the following scenario:
Dialed number: 555-1234

CCM route pattern matches: 555-12XX, 555-12[2–4]X

In this example, the CCM uses the 555-12[2–4]X route pattern, because 100 potential matches exist for the 555-12XX route pattern whereas only 30 potential matches exist for the 555-12[2–4]X route pattern. Therefore, the 555-12[2–4]X route pattern is deemed to be
more specific.

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