automatic multi-media exchange

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