line telephone

Implementation of small scale 32 line visual telephone exchange system used in bloc

32路集团用小型可视电话交换系统的实现

This paper devise and complete a direct line telephone charging by MCS-51 single chip computer and PC.

利用PC机与MCS-51单片机，设计并实现了直线电话计费系统。

The statistical process control used in production line of telephone cable

在话缆生产线上采用统计过程控制的探讨

Four-line Telephone Voice Mailbox

四线电话语音信箱

The commerce, industry and technology bureau regards that combining fixed line telephone service with mobile phone service as the trend in the future due to advanced technology and service development.

工商及科技局认为，随著新科技及服务不断发展，固网与流动电话服务汇流将是大势所趋。

Rural Telephone Subscribers refer to telephone subscribers, located at towns under county town and country, that are connected to the public line telephone network.

乡村电话用户数指县城关区以下的集镇和农村接入局用交换机的电话用户数。