The CCITT considering that, with fully automatic working in the international telex service, the possibility of fraudulent routing by subscribers of international calls involving tandem connection of international telex trunks might arise whenever subscribers are given automatic access to international telex trunk circuits that have, at their incoming ends, automatically switched access to other international telex trunk circuits.
ITU-T U.6 SPANISH-1988由国际电信联盟 IX-ITU 发布于 1988。
ITU-T U.6 SPANISH-1988 在中国标准分类中归属于: M39 传真电报设备。
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