Asterisk Win32 is not a tool within the reach of everyone, as it requires some knowledge about how analog and digital telephones work.
The actions it can carry out are, among others: videoconferencing, voicemail, calls to landline or VoIP phones...
This application makes it possible to reduce your phone bill to an amazing extent. You can even make international calls as though they were local.
Asterisk's servers are interconnected and your call will be made as though it were a local call from within the destination country.
Asterisk Win32 is a powerful tool, though unfortunately beyond the reach of the majority of users.