Real-time encryption of voice and fax over IP
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United States of America Patent
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Sep 22, 2015
Grant Date -
Jul 2, 2015
app pub date -
Mar 3, 2014
filing date -
Dec 30, 2013
priority date (Note) -
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Abstract
A method for encrypting application layer packets, including UDPTL data used by T.38 FOIP devices, for securing transmission of Fax communications over the Internet. In one embodiment, a client side SIPCryptAgent is provided and operably installed on the user's Fax or Voice over IP server/device. Similarly, a server side SIPCryptAgent is installed on the SBC servers at the service provider. The client side SIPCryptAgent acts as a proxy for the Fax device thereby receiving all data sent out by the Fax device and encrypting the SIP and media packets of the Fax device using a lightweight protocol before sending them to the SBC servers. Similarly, the server side acts as a proxy for the SBC servers and encrypts outgoing data and decrypts incoming data so that the exchange of data over the Internet between the client side CryptAgent and the server side CryptAgent is done in a secure, encrypted and real time manner.
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