现行

ITU-T V.26bis

2400/1200 bits per second modem standardized for use in the general switched telephone network
标准化的2400/1200比特/秒调制解调器 用于一般交换电话网络

1988-11-25

现行

ITU-T V.26bis

2400/1200 bits per second modem standardized for use in the general switched telephone network
标准化的2400/1200比特/秒调制解调器 用于一般交换电话网络

1988-11-25

现行

ITU-T V.27ter

4800/2400 bits per second modem standardized for use in the general switched telephone network
标准化的4800/2400比特/秒调制解调器 用于一般交换电话网络

1988-11-25

现行

ITU-T V.27ter

4800/2400 bits per second modem standardized for use in the general switched telephone network
标准化的4800/2400比特/秒调制解调器 用于一般交换电话网络

1988-11-25

现行

ITU-T V.26

2400 bits per second modem standardized for use on 4-wire leased telephone-type circuits
标准化的2400比特/秒调制解调器 用于4线租用电话型电路

1988-11-25

现行

ITU-T V.26

2400 bits per second modem standardized for use on 4-wire leased telephone-type circuits
标准化的2400比特/秒调制解调器 用于4线租用电话型电路

1988-11-25

现行

ITU-T V.27bis

4800/2400 bits per second modem with automatic equalizer standardized for use on leased telephone-type circuits
4800/2400比特/秒调制解调器 带自动均衡器 标准化 用于租用电话型电路

1988-11-25

现行

ITU-T V.27bis

4800/2400 bits per second modem with automatic equalizer standardized for use on leased telephone-type circuits
4800/2400比特/秒调制解调器 带自动均衡器 标准化 用于租用电话型电路

1988-11-25

现行

GB/T 7621-1987

在电话自动交换网和点对点二线租用电话型电路上使用的标准化的1200比特/秒双工调制解调器
1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephonecircuits

1987-04-03

现行

ITU-T V.21

300 bits per second duplex modem standardized for use in the general switched telephone network
标准化的300比特/秒双工调制解调器 用于通用交换电话网络

1988-11-25

现行

ITU-T V.21

300 bits per second duplex modem standardized for use in the general switched telephone network
标准化的300比特/秒双工调制解调器 用于通用交换电话网络

1988-11-25

现行

GB/T 7620-1987

在电话自动交换网上使用的标准化300比特/秒全双工调制解调器
300 bits per second duplex modem standardized for use in the general switched telephone network

1987-04-03

现行

DIN ETS 300118

Public Switched Telephone Network (PSTN) - Category II specification for 1200 bits per second half duplex and 1200/75 bits per second asymmetrical duplex modems standardized for use on the PSTN; English version ETS 300118:1996
公共交换电话网（PSTN）.在PSTN上标准化使用的每秒1200位半双工和每秒1200/75位非对称双工调制解调器的II类规范；英文版ETS 300118:1996

1997-08-01

现行

ITU-T V.22

1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
标准化的每秒1200位双工调制解调器 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

现行

ITU-T V.22

1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
标准化的每秒1200位双工调制解调器 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

现行

UNE-ETS 300116-1993

ATTACHMENTS TO THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN). CATEGORY II ATTACHMENT REQUIREMENTS FOR 1200 BITS PER SECOND DUPLEX MODEMS STANDARDIZED FOR USE ON THE PSTN.
公共交换电话网（PSTN）的附件 PSTN上使用的标准化每秒1200位双工调制解调器的II类连接要求

1993-07-15

现行

ITU-T V.26ter

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

现行

ITU-T V.22bis

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

现行

ITU-T V.26ter

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

现行

ITU-T V.22bis

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