本文介绍了ZXJ2000A用户交换机密码计费的实现方式，包括系统组成、处理过程、使用方式、管理方式等。
This paper introduces the realization of the secret code charging system in the ZXJ2000A SPC PABX, including the composition, processing, operation and management of the system.
本文介绍了ZXJ2000A用户交换机密码计费的实现方式，包括系统组成、处理过程、使用方式、管理方式等。
This paper introduces the realization of the secret code charging system in the ZXJ2000A SPC PABX, including the composition, processing, operation and management of the system.
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