https://sbkb.cisco.com/CiscoSB/GetArticle.aspx?docid=393e775e011b4692b3b13046bb9707ab_SNMP_User_Configuration_on_UC500.xml&pid=2&converted=0
If it doesn't work with CCA, you may want to explain which specific problems and or errors you are encountering.
M.
-- ' 'Good body every evening' ' this sentence was once spotted on a logo at the entrance of a Weight Watchers Club !