如何在服务器端实现VOIP服务？
How to implement a VOIP service on the server?
我知道我的问题很宽泛，但我不知道从哪里开始研究。
如何在服务器上实现 VoIP？我相当确定它不使用 http/https 协议。如果是这样，可以使用哪些 standard/famous 协议？有没有开源的？有哪些好的参考资料可以着手开展这项工作？
首先查看 SIP、RTP 和 RTCP 协议。我相信它们形成了一组极简的 VoiP 所需协议
一些相关的开源项目：
http://www.fsf.org/campaigns/priority-projects/priority-projects/highpriorityprojects#Replaceskype
"There are a number of such programs, such as Ekiga, Twinkle, Coccinella, QuteCom, and Jitsi. Unfortunately, these programs only replace some of Skype's functionality, and only in some situations. WebRTC has a mission to enable rich, high quality, Real-Time Communications (RTC) applications to be developed in the browser via simple Javascript APIs and HTML5. Developers should consider helping free software VoIP and video, chat, and multimedia communications projects."
我知道我的问题很宽泛，但我不知道从哪里开始研究。
如何在服务器上实现 VoIP？我相当确定它不使用 http/https 协议。如果是这样，可以使用哪些 standard/famous 协议？有没有开源的？有哪些好的参考资料可以着手开展这项工作？
首先查看 SIP、RTP 和 RTCP 协议。我相信它们形成了一组极简的 VoiP 所需协议
一些相关的开源项目：
http://www.fsf.org/campaigns/priority-projects/priority-projects/highpriorityprojects#Replaceskype
"There are a number of such programs, such as Ekiga, Twinkle, Coccinella, QuteCom, and Jitsi. Unfortunately, these programs only replace some of Skype's functionality, and only in some situations. WebRTC has a mission to enable rich, high quality, Real-Time Communications (RTC) applications to be developed in the browser via simple Javascript APIs and HTML5. Developers should consider helping free software VoIP and video, chat, and multimedia communications projects."