[cisco-voip] CUCM pattern matching logic

[Louis Koekemoer (ZA)]

   T302 timer
Kind Regards

Louis Koekemoer
louis.koekemoer at za.didata.com
+27716808790
-----Original message-----
From: Cisco Voip
Sent:  25/04/2011, 06:39
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] CUCM pattern matching logic


Hi all.



I am trying to understand call routing logic of cucm.



I created 2 route patterns in cucm 7



2!
2XXX (with urgent priority)



Now when i dialed 2001, i had to wait 15 seconds. The call wasnt routed as i expected. I opened up Troubleshooting cisco ip telephony book, and according to that, i must calculate the possible results each route pattern defines.



1) 2! for 2001 = 1000 combinations
2) 2XXX for 2001 = 1000 combinations.



Since they were equal, i can understand why urgent priority didnt work (pls correct me here if what i understood is wrong !!)\



Now i deleted the above and created 2 new patterns



1) 20!
2) 20XX (urgent priority)



Now when i dialed 2001, my call went immediately. Why is this so ?? if i calculate the combinations



1) 20! for 2001 = 100 combinations
2) 20XX for 2001 = 100 combinations



So why second route pattern was selected immediately ???

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