There are several tools that implement a whitelist with verification: TDMA is a popular multi-platform open source tool; ChoiceMail is a commercial tool for Windows; most others seem more preliminary.
这里有几种工具可以实现带验证的“白名单”：TDMA 是一个深受大家喜爱的多平台开放源码工具；ChoiceMail 是一个针对 Windows 的商业性工具；其它大多数似乎都比较初级。
This paper takes a successful example to show the application of TDMA satellite communication techniques in integrated service, including conference television, data traffic and telephone traffic.
以一个较成功的案例，探讨了TD MA卫星通信技术在会议电视、数据通信、话音等综合业务中的应用。
An acquisition method of frequency hopping signal in a TDMA system is presented in this paper.
本文提出一种时分多址跳频信号的捕获方法。
应用推荐