Hello Sir, professional software developer here .. suggestion for you ... i have recently made a tool for skype which can be used for advertising purpose ... you need to sign in skype first and then add a number of numbers .... after adding those numbers ... you can select the audio file to play ... the tool will automatically calls the number and play that audio message when call accepted ... it also creates a log file which saves the calls history (maintaining the time and status of calls i.e if call accepted, rejected, busy , not answer etc) ... please see the PMB