ClosedTalk 1.0 
Descriptions:
ClosedTalkTM is a secure VoIP solution for internet talk in total privacy. ClosedTalkTM provides user privacy, the confidence in the Identity of your talk partner and all other benefits of a VoIP solution. All data to establish a connection and the actual voice data are transmitted in an encrypted format. Unlike other VoIP solutions, ClosedTalkTM protect the communication through strong encryption technology, direct key exchange between the partners, and optional trustful authentication by digital certificates. Features include secure registration and activation, call connection using email address instead of telephone numbers, text chat, address book, call history, and ringtone management. By using the built-in sound system of the computer, ClosedTalkTM users communicate without the need of IP telephones. The solution incorporates top-end security technologies, such as ECC based Diffie-Hellman Key Generation Protocol to provide secure session keys, Elliptic-Curve cryptography, and a strong 256 Bit Advanced Encryption Standard to secure the voice and the management data. Making internet talk using ClosedTalkTM is easy as the caller only need the recipientas email address. ClosedTalkTM does not need the old-fashioned telephone numbers. A gatekeeper service is provided by CE-Infosys to locate the public IP addresses of the communication partners on the Internet. Compared to a telephone communication, ClosedTalkTM provides highest sound quality as you need it to identify the voice of a partner or to listen to music. ClosedTalkTM is free for professional business and home uses. ClosedTalkTM users can enhance their communication productivity further by opting for a total solution which includes easy-to-use handsets, private gatekeeper for business users, and hotline support for a large user base. Free online support is provided at http://groups.yahoo.com/group/closedtalk_ceinfosys. More software updates and promotions are available at www.ce-infosys.com
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