This Recommendation is concerned with the procedures which are necessary for document transmission between two facsimile terminals in the general switched telephone network. These procedures essentially comprise the following: – call establishment and call release; – compatibility checking, status and control command; – checking and supervision of line conditions; – control functions and facsimile operator recall. 1.1.2 Only the procedures with their corresponding signals are specified in this Recommendation. 1.2 Classification of operating methods 1.2.1 This Recommendation regulates the operational sequence of manually operated facsimile terminals as well as of automatic terminals. The automatic facsimile terminal is understood to be a terminal which is capable of performing all procedures (listed in 1.1) automatically. In this case, an operator is not necessary. If, however, an operator is required for any of these procedures, the terminal must be regarded as a manually operated terminal. 1.2.2 Based upon all combinations which may result from the fact that there are manually operated terminals and automatic facsimile terminals, the operating methods shown in Table 1 are possible.
ITU-T T.30-2005由国际电信联盟 IX-ITU 发布于 2005-09-01。
ITU-T T.30-2005 在中国标准分类中归属于: M32 数据通信设备,在国际标准分类中归属于: 35.200 接口和互连设备。
* 在 ITU-T T.30-2005 发布之后有更新,请注意新发布标准的变化。
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