GB/T 7438-1987
AbolishedNumbering for telex and low speed data in national communication network
国家通信网用户电报及低速数据编号
Application Summary AI generated
This standard defines the numbering plan for telex and low-speed data services within China's national communication network. It specifies the structure and format of subscriber numbers to ensure consistent routing and identification across the domestic telecommunications infrastructure. The standard is applied by telecom operators and network engineers for the configuration, management, and interconnection of telex and low-speed data terminals.
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