This European Telecommunications Standard (ETS) defines the assignment of alphabetic letters to digits on standard telephone keypad arrays. The assignment of characters with diacritical marks@ e.g. ??@ ?@ ?@ ?@ ?@ etc. on the standard telephone keypad array@ or the assignment of other non-Latin character sets is outside the scope of this ETS. This ETS applies to all terminals@ public and private@ that assign alphabetic letters to standard telephone keypad arrays. The standard can be applied to keypad arrays provided in hardware form (e.g. as push button keys) or software form (e.g. as soft keys on a visual display) This ETS does not apply to terminals specifically intended to support text telephony.
PRETS 300 640-1996由ETSI - European Telecommunications Standards Institute 发布于 1996-01-01,并于 2014-04-03 实施。
非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 PRETS 300 640-1996 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