The CCITT, considering that phototelegraph calls are frequently set up on circuits normally used for telephone traffic; that the holding time of these circuits used depends not only on the duration of the phototelegraph transmission proper but also on the time needed to prepare the call and return the circuits used to the telephone service; that when a phototelegram is handled, the cost includes the handing in and delivery expenses as well as the cost of using public phototelegraph stations.
ITU-T D.83 SPANISH-1993由国际电信联盟 IX-ITU 发布于 1993-01-01。
ITU-T D.83 SPANISH-1993 在中国标准分类中归属于: M39 传真电报设备。
非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 ITU-T D.83 SPANISH-1993 前三页,或者稍后再访问。
点击下载后,生成下载文件时间比较长,请耐心等待......
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