When you have several profiles to choose from, you can deposit an announcement and individual settings for every profile. According to which profile is set "active", the deposited announcement is played when a call comes in.
In order to switch the active profile and therewith the active announcement and settings, you have to choose
5" = "Change Current Profile" in the Main Menu. Now the available profiles are offered to you.
Remark: Please note that with the announcement of the profiles, the activated profile is not announced.