The services provided by professionals in particular field. For example, a company may charge a certain sum of money for the certain tasks their consultant accomplished for the company who ordered the service.
Outgoing call control system, works by principle, call everybody
excluding those who are blacklisted or call nobody apart those who are in the
“White list”. The system additionally allows to analyze the duration of the
conversation, marks the time and date of the call and the one who has called.