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| 文档标题： | Voice + Data (V+D) |
| 发布时间： | 2012-09-05 21:12:39 |
| 文档简介： | To meet the needs of traditional PMR user organisations, a wide range of V+D services and facilities have been provided in the standard, of which the most important are considered to be: Voice Services Group Call (commonly called all infor |
