Patent ID: 7072389
Filing Date: 2006-07-04
Classification: H04L,H04M

Abstract:
1. Digital direct access arrangement circuitry for terminating a phone line connection, comprising: powered side circuitry operable to communicate digitally with phone line side circuitry, said digital communication comprising a digital data stream transmitted across an isolation barrier; phone line side circuitry operable to communicate digitally with powered side circuitry across said isolation barrier; and encode and decode circuitry coupled to said digital data stream to generate an encoded digital signal for transmission and receipt across said isolation barrier, wherein said encoded digital signal comprises control data added to said digital data stream, wherein communication across said isolation barrier is bi-directional, and wherein powered side circuitry includes encode circuitry coupled to said digital data stream to generate an encoded digital signal for transmission across said isolation barrier and wherein said phone line circuitry includes decode circuitry to generate a decoded digital signal from said encoded digital signal.