问题描述
鉴于Skype对GNU /Linux版本的开发速度缓慢，以及最近微软收购Skype，我正在寻找其他软件。
什么是FLOSS (free/libre/open-source software) Skype替代品？
最佳解决办法
SIP客户端
这些都是SIP客户端，这意味着他们都可以用来互相呼叫，他们只需要一个SIP地址(如您的手机号码)。您可以从许多提供商(Ekiga，jit.si，iptel)免费获得一个SIP地址，其中一些(sip2sip.info，ippi.com，localphone.com，nonoh.net)也具有PSTN网关进入正常的电话网络，该网关允许您调用和接收常规电话/到您的SIP客户端(收费)。由于各种原因，某些客户可能无法与某些提供商合作(例如，对于Nonoh和Iptel，Blink有效，但Jitsi，Ekiga和Linphone不会)。
Ekiga(在软件中心提供)
用于ekiga的Here is First use documentation。
Here is documentation关于如何在ekiga中使用PC到手机功能。
Ekiga (formely known as GnomeMeeting) is an open source SoftPhone, Video Conferencing and Instant Messenger application over the Internet.
Ring(在软件中心提供)
Ring is free software for universal communication which respects freedoms and privacy of its users. It supports SIP accounts. Ring is available under the GNU GPL license, version 3.
Twinkle(在软件中心提供)
Twinkle is a softphone for your voice over IP and instant messaging communcations using the SIP protocol. You can use it for direct IP phone to IP phone communication or in a network using a SIP proxy to route your calls and messages.
Yate VoIP(在软件中心提供)
YATE is a telephony engine aimed at creating a telephony server that performs well enough to deal with PBX requirements and also flexible enough for complex Gateway and IVR solutions.
YateClient uses the same telephony code to produce a software desktop VoIP (SIP, H.323, IAX2) phone. yate-qt4 uses this to provide such a telephony
QuteCom(在软件中心提供)
QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship product of the QuteCom project is a softphone which allows you to make free PC to PC video and voice calls, and to integrate all your IM contacts in one place.
Linphone(在软件中心提供)
Linphone is an internet phone or Voice Over IP phone (VoIP). With linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone makes use of the SIP protocol , an open standard for internet telephony. You can use Linphone with any SIP VoIP operator, including our free SIP audio/video service
Jitsi – Open Source Video Calls and Chat Secure video calls, conferencing, chat, desktop sharing, file transfer, support for your favorite OS, and IM network. All this, and more, in Jitsi – the most complete and advanced open source communicator. Implemented in Java.
A state of the art, easy to use SIP client Available for Mac, Windows and Linux. Comprehensive controls over the details of the protocol. Blink is the end-result of cumulated knowledge built over many years by its developers who worked on the development of popular open-source SIP infrastructure software and attended relevant IETF and SIPIT events where SIP protocol has been developed and tested 18. Implemented using Qt.
次佳解决办法
您可以使用Empathy(Ubuntu中的pre-installed)代替Skype。
对于Windows OS /X的用户，您可以要求他们安装Google语音和视频聊天http://www.google.com/chat/video
移情和谷歌语音和视频聊天相互兼容，所以你可以有语音和视频聊天！
Empathy有一个VoIP(SIP)支持选项。您安装telepathy-sofiasip软件包以添加SIP支持。它可能不是很好，但你可以完成工作。
此外，通过Empathy，您还可以使用许多其他选项(基本Skype中未找到)，其中包括
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您可以选择远程桌面到您的IM联系人(pre-installed)
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你可以通过SSH连接到你的联系人的电脑(需要安装包)
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您可以使用
gedit编写文档与您的联系人协作(请参阅gedit-collaborate)。
第三种解决办法
TOX是一个开源项目，用于构建建立消息传递和视频呼叫协议的代码库，以用户隐私为出发点。它提供了可以构建用户front-ends或客户端的API或核心。
有三种针对Linux的Tox客户端正在开发中：
。 Venom – 使用GTK +在Vala中编写的用于Tox的cross-platform图形用户界面。 Install instructions。
。 Blight – 用于利用libtoxcore-racket在Racket中编写的Tox的cross-platform图形用户界面。在很早的pre-alpha阶段。
。 Qt GUI for Tox – 用Qt5和C++编写的Tox Core的cross-platform前端。开发目前处于非常早期的阶段，不建议使用测试以外的测试。