Hi
It really depends on your requirements. Most CME deployments use Cisco Unity Express (CUE):
http://www.cisco.com/en/US/products/sw/voicesw/ps5520/products_data_sheets_list.html
Configuration of CUE isn't complicated, provided you take the time to read the manual.
It you need Unified Messaging, then you would want to consider full Unity, though bear in mind this is a much more complex and expensive product.
Regards
Aaron
Please rate helpful posts...
Aaron
Please remember to rate helpful posts to identify useful responses, and mark 'Answered' if appropriate!