On this background,we studied the appliacation of CRBT system based on exchange manner.
在现阶段,CRBT业务的技术实现方式主要有两种:交换机方式和智能网方式。
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
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
Subscriber line signalling system for telephone automatic switching network
GB3378-1982电话自动交换网用户信号方式
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
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
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
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
Ringing and tone for telephone automatic switching network
GB3380-1982电话自动交换网铃流和信号音
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
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
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
automatic multifrequency ionospheric recorder
自动多频电离层记录器
code switch automatic telephone system
码条式自动电话交换机
electronic video recorder
电子视频信号记录器
all relay automatic telephone system
全继电器制自动电话交换机
Automatic exchange for voltage and current output.
仪器电压、出电流信号能够自动转换。
handshaking modem
信号交换式调制解调器
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