Speech transmission over the radio communication. Requirements for speech legibility and methods of articulation measurements
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National automatic telephone communication system. Terms and definitions
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Telegraph communication. Terms and definitions
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Circuits local bipolar for telecommunication and data transferring systems. Types and basic parameters
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Crossbar-type telegraph switching stations (substations). Signals and procedures of interaction between stations (substations) during the setting up of connections at the telex (АТ-50), data transmission (ПД-200) and gentex networks
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Control computing system and automatic telephone stations peripheral equipment joints. Joint main functional-temporal characteristics requirements
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Telephone exchanges. Information tone signal parameters
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Automatic telephone exchanges. General requirements for interworking between digital and crossbar automatic telephone exchanges
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Speech transmission over varies communication channels. Techniques for measurements of speech quality, intelligibility and voice identification
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Line equipment of local telephone networks. Terms and definitions
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Signal transformers for communication equipment. Typical calculation
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Cable transmission lines of unified computer-based message system primary network. Elementary cable sections and cable section of analog and digital transmission systems standards.
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