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Telecommunication networks. Common channel signalling No. 7. Test methods (general test procedures)
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Telecommunication networks. Line protection of optical transport networks. General requirements
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Telecommunication networks. Automated payment system with users of telecommunications services. General technical requirements and control methods
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Telecommunication networks. Terminal end device. General technical requirements
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Classifier of types of economic activities of the Republic of Uzbekistan. Replaces O’z DSt 005:2004
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