帧中继数据传输业务 FRDTS
公用数据传输业务 [计] [通信] public data transmission service
分组交换数据传输业务 [计] packet switched data transmission service
为此，专门调查了电话业务、数据传输业务和信令网络管理的要求。
To this end, the requirements of the telephone service, the data transmission service and the signalling network management, in particular, were investigated.
另外，四站点控制器基本操作系统软件支持短数据传输业务(SDTS)。
In addition, the TETRA Site Controller basic operating system software also supports Short Data Transport Service (SDTS).
在电话系统中的一种术语。适用于利用音频段线路的任何非数据传输业务。
In a telephone system, a term applied to any non data transmission that makes use of voice grade lines.
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