Procedures for simultaneous transmission of data and digitally encoded voice signals over the PSTN or over 2-wire leased point-to-point telephone type circuits
基本信息
标准号:
GB/T 17789-1999
名称:
在PSTN或二线点对点租用电话型电路上同时传送数据和数字化编码语音信号的规程
英文名称:
Procedures for simultaneous transmission of data and digitally encoded voice signals over the PSTN or over 2-wire leased point-to-point telephone type circuits