Patent ID: 6222859
Filing Date: 2001-04-24
Classification: H04L,H04M,H04Q

Abstract:
A data communication method for transmitting and receiving communicated data between communication terminals over a computer network, the method comprising the steps of:requesting connection from a first communication terminal to said computer network via a first telephone line in order to acquire a first computer network address of said first communication terminal;transmitting from said communication terminal communication information including at least said first computer network address to a second communication terminal via a second telephone line;upon receipt by said second communication terminal of the communication information including said first computer network address, requesting connection from said second communication terminal to said computer network via said first telephone line in order to acquire a second computer network address of said second communication terminal;outputting from said second communication terminal connection information including said first and said second addresses onto said computer network to request communication with said first communication terminal;whereby communication is established between said first and said second communication terminals over said computer network; andwherein the communication information transmitted by said first communication terminal to said second communication terminal via said second telephone line further includes encryption key information and said first and said second communication terminals encrypt transmission data using the encryption key for communication therebetween.