There are PLENTY of threads on the subject on CSC, a simple search would have provided all the info you need.
All there is to configure, are call handlers and caller input, if you have worked with CUCM and CUC, this is a really simple task.
I even wrote a small set of instructions for that...
http://docwiki.cisco.com/wiki/CUC_FAQ#How_to_create_a_simple_AA.3F.3F
HTH
java
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