Evaluation of signal energy relation of one-off messages and continues information during their simultaneous transmission

Transmission of one-off messages over busy telecommunication channels provides to equip by new features both installed analogue and IP-telephony systems. Maximal power of one-off messages should be estimated by taking into account telephone channel parameters and signal properties to minimize influence of one-off messages overlapping on the noise immunity of analogue and discrete data transmission systems. This work describes how to evaluate relation of energy characteristics of continues information and one-off messages transmitted over telecommunication channels. We carried out information analysis of voice signal components and noise immunity. Probability of data signal distortion due to impulse noise would be stay almost constant either with or without one-off messages, if one-off message power would be less data power, and error probability weakly depends on power of signal propagating over channel. Therefore condition h 2 > 9 should be provided to eliminate one-off message strong influence on validity of analogue and discrete data transmission for channels with low level fluctuation noise. Here parameter h 2 is power ratio of relevant data signal to one-off message signal. We propose to use broadband signal to improve one-off message selection. Permissible relations of power levels of continues information and one-off messages in the kind of voice signals were defined for their successful simultaneous transmission.