Access and Terminals (AT); Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services; Part 3: Data link message and parameter codings
接入和终端(AT);公共交换电话网(PSTN)的模拟接入;用于显示(及相关)服务的本地环路上的用户线路协议;第3部分:数据链路消息和参数编码
发布日期:
2001-01-01
定义支持显示服务所需的模拟线路上的数据链路消息和参数编码协议,如PSTN的主叫线路识别显示。
Definition of the protocol for data link messages and parameter codings on analogue lines required to support display services such as Calling Line Identification Presentation for the PSTN.