GB/T 19558-2004
ActiveGeneral specifications for integrated circuit(IC)card payphone and system
集成电路(IC)卡公用付费电话系统总技术要求
Application Summary AI generated
This standard specifies the technical requirements, test methods, and system architecture for IC card payphones and their associated management systems. It is applied in China to ensure interoperability and reliability of public payphones that use integrated circuit cards for payment, covering both the terminal equipment and the backend billing and data exchange systems. The standard is relevant for telecommunications operators, equipment manufacturers, and regulatory bodies involved in the deployment and maintenance of public telephone networks.
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