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Telecommunication networks. Session Initiation Protocol SIP. General requirements

Document status: Active

Telecommunication networks. Automated payment system with users of telecommunications services. General technical requirements and control methods

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Electromagnetic compatibility of technical equipment. Man-made noise from wire communication equipment. Limits and test methods

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Information technologies. Structured cabling systems. Main system elements installation. Methods of testing

Document status: Active

Sound system equipment. Electroacoustical transducers. Measurement of large signal parameters

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Reprography. Micrography. Test-charts for image quality control. Types. Methods of control

Document status: Active