Abstract:
Most telephonic communication is carried out using E1 stream therefore there is a need to
analyze this data on the computer system. Computers today, have applications in all kinds
of communication systems, and by connecting an E1 stream to a computer, the analysis
of a telephonic communication can be done in various ways. This type of interfacing will
allow data of an E1 stream to be transmitted into a computer. Different types of analysis
can then be done on this data.
E1 stream will be interfaced to the computer through the USB port and the analysis of
data and signaling channels will be done by writing software programs.
In order to interface E1 stream to the computer, a circuit will be designed to convert
HDB3 bipolar to unipolar and then decode HDB3 line code. Software will be written for
frame alignment, recognition of frame, recognition and splitting of channels and
graphical representation and analysis of each channel.
