GB/T 17789-1999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 GB/T 17789-1999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

GB/T 17789-1999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

  • 标准类别:[GB] 国家标准
  • 标准大小:
  • 标准编号:GB/T 17789-1999
  • 标准状态:现行
  • 更新时间:2022-06-29
  • 下载次数:
标准简介

标准截图
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