automatic dispatch system
Dedicated Telephone System
cordless telephone system second generation (CT-2)
cordless telephone system
consulting telephone system
cellular telephone system
Cellular Mobile Telephone System
automatic telephone system
automatic ship’s service telephone system
automatic dialling mobile telephone system
automatic coin telephone system
all relay automatic telephone system
全继电器制自动电话系统
全体呼叫
全继电器制自动电话交换机
vehicle dispatch system
Transportation management and dispatch system
TADS Teletypewriter Automatic Dispatch System