ClosedTalk is a free and secure VoIP solution for Internet talk in total privacy.

Here are some key features of "ClosedTalk":

· Secure registration using user’s existing email address.
· Secure activation using randomly generated, unique activation code.
· Connect each talk using easy-to-remember email address of communication partners instead of telephone numbers.
· Text chatting while talking.
· Address book tracks email address of communication partners.
· Call history provides records of connected calls and offline parties.
· Ringtone management provides ringtone selection or preferred volume settings.