If something goes wrong simply make one toll free call at the hot-line 24 hours a day .

如果出现什么问题，您只要拔打24小时 免费 电话就可以了。

The design of the real-time data communication function needed by the road toll system is discussed . The communication function is encapsulated as a suit of the general-purpose and secure components and can be provided for the application to call so as to enhance the development efficiency .

介绍了公路 收费系统中所需的实时数据通信功能的设计，并通过组件方式，将其制作成具有一定安全性的通用组件，提供给应用系统 调用，从而提高开发效率。

This month I had to pay200 yuan RMB toll call .

这个月我要缴200元的 电话 费。

A regional toll call requires that the user to dial 1 plus an area code before dialing the 7-digit telephone number .

用户拨打 长途须在区号前加拨数字1，然后输入7位电话号码。

To define an appropriate implement process of data real-time collection and manual backup is an important task for the telecommunication company to carry out centralized billing for toll call .

定义一个合适的实时采集和人工备份的实现流程是电信企业在 长途 电话集中计费所面临的一个重要课题。

Customer Support-With brand-name computer companies you are usually provided with a24-hour toll free number that you can call if you have questions or concerns with your computer .

客户支援-以名牌电脑公司通常提供您24小时 免费号码，你可以 致电如果你有问题或关切你的电脑。

An Optimal Algorithm of Tariff - Rate Storing and Searching for Toll Call in SPC Switching System

程控交换 长途计费的费率存贮与查询优化算法