This application uses the call monitor of the Fritz box. This must be enabled on the Fritz box by dialing #96*5* on a handset. It can be disabled by dialing #96*4*.
Unpack the zip archive and copy CallMonitor.tap to /ProgramFiles or /ProgramFiles/AutoStart to make it start automatically when the SRP it bootet.
Create a directory /ProgramFiles/Settings/Callmonitor. Edit the settings file Callmonitor.ini and phonebook file addrbook.dat and copy them to this directory.
Create a directory /PhotoFiles/Callmonitor and copy the file unknown.jpg and all other pictures to this directory.