Cisco IOS Voice Translation Profiles

One of the topics I notice some students have a bit of trouble getting thier head around when studying for the IIUC exam is Voice translation profiles and rules.
Below are a couple of links that should help you understand the topic.

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a0080325e8e.shtml

http://www.networkworld.com/community/node/41758

Below is a great link to help you test out voice translation rules away from a router.

http://www.redsack.com/cisco/translation.aspx