[cisco-voip] Transformation calling and called Group Question

[Lelio Fulgenzi]

Sometimes a non-routable pattern is the only way to prevent a number from being dialed because it's easier to allow a broad range and deny a small range. 

For example, you allow access to the whole 416 area code except a certain number that rings the competition or something like that. 

Also, when you're using the device/line approach, this becomes key to your dial plan. 

One hint that I got from an old PBX guy - when doing "blocking" routing patterns, be sure to use a null route group. That way, if for whatever reason that little tick box becomes unchecked or if a bug hits that ignores the do not route settings it will still fail. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 



From: "Gregory Wenzel" <gwenzit at gmail.com> 
To: cisco-voip at puck.nether.net 
Sent: Thursday, October 28, 2010 4:27:12 PM 
Subject: [cisco-voip] Transformation calling and called Group Question 


Can someone enlighten me to why a non routable pattern such as called transformation or calling transformation patterns are useful and for what is the real purpose. 

Im diging for my cvoice book cant find it..hope some of you experts can shed some light or point me in right direction. 

TIA 
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