Terminals' access to Public Telecommunications Networks; Application of the Directive 1999/5/EC (R&TTE), article 4.2; Guidelines for the publication of interface specifications; Part 2: Analogue narrow-band wireline interfaces
终端接入公共电信网络;指令1999/5/EC(R&TTE)第4.2条的应用;接口规范发布指南;第2部分:模拟窄带电缆接口