I am install CUCM 7.1.5 and try to activate Cisco CallManager and CTIManager Services but it shows "Update Failed for the Service(s): Operation not supported" Could you please suggest me to figure it out.
A few things. Firstly for what reason are you installing version 7 of CM? This has been end of life l, actually end of everything, for a number of years. Secondly do you have any licenses installed on your CM? Without it you will not be able start these services.