Hi Thot,

This is possible with CCM 4.1(3) Have a look;

Cisco CallManager AutoAttendant

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Cisco CallManager AutoAttendant, a simple automated attendant, allows callers to locate people in your organization without talking to a receptionist. You can customize the prompts that are played for the caller, but you cannot customize how the software interacts with the customer.

Cisco CallManager AutoAttendant comes bundled with Cisco CallManager on the Cisco CallManager Extended Services CD. This version of Cisco CallManager AutoAttendant provides a four-CTI port limit. If you need a fully configurable automated attendant, you will need to purchase Cisco IP Interactive Voice Response (IP IVR), one of the Cisco Customer Response Applications (CRA).

From this good doc;

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_administration_guide_chapter09186a00803f3a96.html

Nice post from Mahesh;

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Unified%20Communications%20and%20Video&topic=IP%20Telephony&CommCmd=MB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40%40.1ddd9e40/0#selected_message

Hope this helps!

Rob