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

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.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

GB/T 7625-1987

在电话自动交换网上使用的标准化 2400/1200比特/秒调制解调器
2400/1200 bits per second modem standardized for use in the general switched telephone network

1987-04-03

现行

UNE-ETS 300115-1993

ATTACHMENTS TO THE PUBLIC SWITCHED TELEPHONE NETWOR, (PSTN). CATEGORY II ATTACHMENT REQUIREMENTS FOR 300 BITS PER SECOND DUPLEX MODEMS STANDARDISED 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300位双工调制解调器的II类连接要求

1993-07-15

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

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

ETSI ETS 300 116

Public Switched Telephone Network (PSTN); Category II specification for 1 200 bits per second duplex modems standardized for use on the PSTN
公共交换电话网（PSTN）；PSTN上使用的标准化每秒1200位双工调制解调器的II类规范

1996-05-01

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

ETSI ETS 300 002

Public Switched Telephone Network (PSTN); Category II specification for 9 600 or 4 800 bits per second duplex modems standardized for use on the PSTN
公共交换电话网（PSTN）；PSTN上使用的每秒9600或4800位双工调制解调器的II类规范

1996-05-01

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

现行

GB/T 9541-1988

在普通电话交换网和点对点二线租用电话型电路上使用标准化的回波抵消技术的2400比特/ 秒双工调制解调器
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

1988-06-30