Ensure system installation to comply with codes and standards whilst maintaining safety and reliability 确保电话网络工程的安全性和可靠性符合相关法规和标准。
Sending and receiving mobile phone short messages between customers of different mobile phone network operators 不同流动电话网络服务营办商的客户互相收发短讯的事宜
Details were difficult to obtain because telephone lines were down and mobile - phone networks overwhelmed 现时难以取得灾情细节，因为电话线路已切断，手提电话网络亦过分繁忙。
An interactive voice response system is used to provide automated processing of the telephone transactions 有关资料会经公众电话网络传送到税务局，及由互动话音回应系统自动处理。
North american telephone network transmission model for evaluating analog client and digitally connected server modems 评估模拟客户和数字连接服务器调制解调器用的北美电话网络传输模式
While this is in theory possible with traditional telephone networks , access to switching equipment is easier to control 虽然这对传统电话网络在理论上也有可能，但交换设备更容易保护。
At the same time , interconnection charges between the mobile phone networks and the fixed telephone network will also be reduced 同时，流动电话网络与固定电话网络之间的互连费亦会下调。
Those who have not previously used a 900 number service should contact their service providers for registration 如果这是你第一次使用900电话服务，你应该联络你的电话网络供应商以便登记。
