文件名称:G.191
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INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS
General definitions
General Recommendations on the transmission quality for an entire international telephone connection
General characteristics of national systems forming part of international connections
General characteristics of the 4-wire chain formed by the international circuits and national extension circuits
General characteristics of the 4-wire chain of international circuits international transit
General characteristics of international telephone circuits and national extension circuits
Apparatus associated with long-distance telephone circuits
Transmission plan aspects of special circuits and connections using the international telephone connection network
Protection and restoration of transmission systems
Software tools for transmission systems
G
-INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS
General definitions
General Recommendations on the transmission quality for an entire international telephone connection
General characteristics of national systems forming part of international connections
General characteristics of the 4-wire chain formed by the international circuits and national extension circuits
General characteristics of the 4-wire chain of international circuits international transit
General characteristics of international telephone circuits and national extension circuits
Apparatus associated with long-distance telephone circuits
Transmission plan aspects of special circuits and connections using the international telephone connection network
Protection and restoration of transmission systems
Software tools for transmission systems
G
General definitions
General Recommendations on the transmission quality for an entire international telephone connection
General characteristics of national systems forming part of international connections
General characteristics of the 4-wire chain formed by the international circuits and national extension circuits
General characteristics of the 4-wire chain of international circuits international transit
General characteristics of international telephone circuits and national extension circuits
Apparatus associated with long-distance telephone circuits
Transmission plan aspects of special circuits and connections using the international telephone connection network
Protection and restoration of transmission systems
Software tools for transmission systems
G
-INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS
General definitions
General Recommendations on the transmission quality for an entire international telephone connection
General characteristics of national systems forming part of international connections
General characteristics of the 4-wire chain formed by the international circuits and national extension circuits
General characteristics of the 4-wire chain of international circuits international transit
General characteristics of international telephone circuits and national extension circuits
Apparatus associated with long-distance telephone circuits
Transmission plan aspects of special circuits and connections using the international telephone connection network
Protection and restoration of transmission systems
Software tools for transmission systems
G
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