While it is too late to get that information this time around; be prepared next time and implement a CDR solution using a Radius server.  Here is a link that may help.http://www.cisco.com/en/US/docs/ios/voice/cdr/developer/guide/cdrdev.htmlGood luck

Very cool - it appears I was looking at an old posting on Topic then.  That being the case, Phone Proxy would the ideal solution and much more secure than the other alternative.  Thanks for setting me straight.

Sorry for the delay getting back with you.  We have a feature for CUCM users who have an ASA firewall on the edge called "Phone Proxy", that allows the user to point their IP Communicator, or even a Cisco 79XX phone to the outside address of the ASA,...

Just commenting that there was a third place those things get modified at times and the route list is sometimes the one that's overlooked.  Sorry for the confusion.

I presume you are CUMA.  Unlike other systems that have a pre-defined system speed dial access, CUCM has a flexible dial plan you can taylor to your needs.  Without knowing how your DN's are conifgured, it's hard to know what digits are in the clear;...