1.
Multifrequency register signalling system for telephone anosmatic switching network
GB3377-1982电话自动交换网多频记发器信号方式
2.
The test methods for the technical specifications of multi-frequency register signalling for telephone automatic switching network
GB/T3971.3-1983电话自动交换网多频记发器信号技术指标测试方法
3.
Subscriber line signalling system for telephone automatic switching network
GB3378-1982电话自动交换网用户信号方式
4.
Inband pulsing single frequency line signalling system for telephone automatic switching network
GB3376-1982电话自动交换网带内单频脉冲线路信号方式
5.
Interoffice direct signalling system for telephone automatic switching network
GB3379-1982电话自动交换网局间直流信号方式
6.
The test methods for the technical specifications of inband pulsing single frequency line signalling systemfor automatic telephone switching network
GB/T5442-1985电话自动交换网带内单频脉冲线路信号技术指标测试方法
7.
Interoffice junction digital line signalling system for telephone automatic switching network
GB3971.2-1983电话自动交换网局间中继数字型线路信号方式
8.
Ringing and tone for telephone automatic switching network
GB3380-1982电话自动交换网铃流和信号音
9.
The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network
GB/T5444-1985电话自动交换网用户信号技术指标测试方法
10.
The test methods for the technical specifications of ringing and tone for automatic telephone switching network
GB/T5443-1985电话自动交换网铃流和信号音技术指标测试方法
11.
relay automatic telephone system
继电器式自动电话交换制;继电器式自动电话系统
12.
automatic multifrequency ionospheric recorder
自动多频电离层记录器
13.
code switch automatic telephone system
码条式自动电话交换机
14.
electronic video recorder
电子视频信号记录器
15.
all relay automatic telephone system
全继电器制自动电话交换机
16.
Automatic exchange for voltage and current output.
仪器电压、出电流信号能够自动转换。
17.
handshaking modem
信号交换式调制解调器
18.
600/1200baud modem standardized for use in the general switched telephone network
GB/T7622-1987在电话自动交换网上使用的标准化600/1200波特调制解调器