China Telephone GB Standards Search Result

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	GB/T 13425-1992 Measurement for 24-channel submarine coaxial cable carrier Telephone equipment - 英文版
	GB/T 13137-1991 Specification for 12-channel Telephone carrier terminal equipment used on the symmetric pains of 2.6/9.5 mm coaxial cable - 英文版
	GB/T 9541-1988 2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched Telephone network and on point-to-point 2 wire leased telephone-type-circuits - 英文版
	GB/T 7626-1987 4800 bits per second modem with manual equalizer standardized for use on leased Telephone-type circuits - 英文版
	GB/T 7625-1987 2400/1200 bits per second modem standardized for use in the general switched Telephone network - 英文版
	GB/T 7624-1987 2400 bits persecond modem standardized for use on 4-wire leased Telephone type circuits - 英文版
	GB/T 7623-1987 Automatic answering equipment and/or parallel automatic calling equipment on the general switched Telephone network， including procedures for bling of echo control devices for both manually and automatically established calls - 英文版
	GB/T 7622-1987 600/1200 bauds modem standardized for use in the general switched Telephone network - 英文版
	GB/T 7621-1987 1200 bits per second duplex modem standardized for use in the general switched Telephone network and on point-to-point 2-wire leased telephonecircuits - 英文版
	GB/T 7620-1987 300 bits per second duplex modem standardized for use in the general switched Telephone network - 英文版
	GB/T 7436-1987 Specifications of TDM equipment operating on an analog Telephone-type circuit for telegraph and lower-speed data - 英文版
	GB/T 5444-1985 The test methods for the technical specifications of subscriber line signalling for automatic Telephone switching network - 英文版
	GB/T 5443-1985 The test methods for the technical specifications of ringing and tone for automatic Telephone switchingnetwork - 英文版
	GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic Telephone switching network - 英文版
	GB/T 3971.3-1983 The test methods for the technical specifications of multi-frequency register signalling for Telephone auto-matic switching network - 英文版
	GB 3971.2-1983 Interoffice junction digital line signalling system for Telephone automatic switching network - 英文版
	GB/T 3974-1983 Telephone transmission interference allowances for long-distance high-capacity analogue microwave communication systems - 英文版
	GB 3380-1982 Ringing and tone for Telephone automatic switching network - 英文版
	GB 3378-1982 Subscriber line signalling system for Telephone automatic switching network - 英文版
	GB 3377-1982 Multifrequency register signalling system for Telephone automatic switching network - 英文版
	GB 3376-1982 Inband pulsing single frequencyline signalling system for Telephone automatic switching network - 英文版

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