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鹤壁矿务局专用电话网于lop年7月完成程控改造，为了满足矿务局电话用户对长途直拨业务的需求，提高专用电信网的服务质量和服务等级，经过反复对比及论证，决定以加字冠的形式开放专网长话业务。由于IIJly（交换机的计费系统不支持带字冠长话呼叫的长途计费系统，决定对其计费
Hebi Mining Bureau telephone network in July lop completed the program-controlled transformation, in order to meet the Mines telephone users on the demand for long-distance direct dialing service, improve the service quality and service level of private telecommunications network, after repeated contrast and argument, decided to add The form of the word open the private network long distance business. Since IIJly (the switch’s billing system does not support toll-length toll-prefix system with prefixes, decides to bill it