The standard specifies the data syntax to be used by videotex services for conveying sound information. This standard is applicable to terminals connected to public data networks. Typically, these should be terminals, supporting ISDN Syntax-based videotex, to be attached at either side of a T reference point or coincident S and T reference points of a public ISDN.
DS/ETS 300149-1993由丹麦标准化协会 DK-DS 发布于 1993-10-01,并于 1993-10-01 实施。
DS/ETS 300149-1993在国际标准分类中归属于: 33.050.30 用户电报、可视图文、用户传真设备。
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