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电话业务数据传辆传真定位全球寻呼提供电话、数据、传真,定位皿务,并与地面数字蜂窝口兼容双向电话,电报,单向数字信息传输和收桌,溶止图像传输,计算机信息交换.移动卫星通信系统牲能对照(二)一50移动卫星通信系统性能对照(一)@李德和
Telephony Data Telephony Fax Positioning Global paging Provides telephone, data, fax, location-based services and is compatible with terrestrial digital cellular interfaces Two-way telephone, telegraph, one-way digital information transmission and reception, image transfer suspension, computer information exchange Mobile satellite communication system can control (b) a 50 mobile satellite communication system performance comparison (a) @ Li Dehe