2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
每秒2400位的双工调制解调器 使用回声消除技术 标准化用于一般交换电话网络和点对点双线租用电话类型电路

1988-11-25

2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
每秒2400位的双工调制解调器 使用回声消除技术 标准化用于一般交换电话网络和点对点双线租用电话类型电路

1988-11-25

2400 bits per second duplex modem using the frequency division technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
2400位/秒双工调制解调器 采用标准化的频分技术 用于一般交换电话网络和点对点双线租用电话型电路

1988-11-25

2400 bits per second duplex modem using the frequency division technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
2400位/秒双工调制解调器 采用标准化的频分技术 用于一般交换电话网络和点对点双线租用电话型电路

1988-11-25

Public Switched Telephone Network (PSTN) - Category II specification for 2400 bits per second duplex modems standardized for use on the PSTN; English version ETS 300117:1996
公共交换电话网（PSTN）.在PSTN上使用的标准化2400比特/秒双工调制解调器的II类规范；英文版ETS 300117:1996

1997-08-01