The establishment in various countries of public data networks for data transmission creates a need to inform the caller about the progress of the call. This Recommendation lays down the call progress signals in public data networks indicating the circums
ITU-T X.96-2000由国际电信联盟 IX-ITU 发布于 2000-03-01。
ITU-T X.96-2000 在中国标准分类中归属于: M32 数据通信设备。
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号