privacyguides.org/_includes/sections/voice-video-messenger.html

<h1 id="voip" class="anchor"><a href="#voip"><i class="fas fa-link anchor-icon"></i></a> Video/Voice Calling</h1>

<div class="alert alert-warning" role="alert">
  <strong>If you are currently using a Video/Voice Calling app like Google Hangouts, Skype, Viber or <a href="https://blog.privacytools.io/protecting-your-privacy-while-using-zoom-at-home/">Zoom</a>, you should pick an alternative here.</strong> Please note that many of the above instant messengers also support {% include badge.html color="info" text="VoIP" %}. The software listed below are <em>primarily</em> Voice/Video focused.
</div>

{% include cardv2.html
  title="Linphone"
  image="/assets/img/svg/3rd-party/linphone.svg"
  website="https://www.linphone.org/"
  privacy-policy="https://www.linphone.org/terms-and-privacy"
  description="Linphone is an open-source SIP Phone and a free voice over IP service, available on mobile and desktop environments and on web browsers. It supports ZRTP for end-to-end encrypted voice and video communication."
  forum="https://forum.privacytools.io/t/discussion-linphone/751"
  github="https://github.com/BelledonneCommunications"
  windows="https://www.linphone.org/technical-corner/linphone?qt-technical_corner=2#qt-technical_corner"
  linux="https://www.linphone.org/technical-corner/linphone?qt-technical_corner=2#qt-technical_corner"
  mac="https://www.linphone.org/technical-corner/linphone?qt-technical_corner=2#qt-technical_corner"
  fdroid="https://f-droid.org/packages/org.linphone"
  googleplay="https://play.google.com/store/apps/details?id=org.linphone"
  ios="https://itunes.apple.com/us/app/linphone/id360065638?mt=8"
%}

{% include cardv2.html
  title="Mumble"
  image="/assets/img/svg/3rd-party/mumble.svg"
  website="https://mumble.info/"
  description="Mumble is an open-source, low-latency, and high quality voice chat application primarily intended for use while gaming. Note that while Mumble doesn't log messages or record by default, <a href=\"https://github.com/mumble-voip/mumble/issues/1813\">it's missing end-to-end encryption</a>, so self-hosting is recommended."
  forum="https://forum.privacytools.io/t/discussion-mumble/1289"
  github="https://github.com/mumble-voip/"
  windows="https://www.mumble.info/downloads"
  linux="https://www.mumble.info/downloads"
  mac="https://www.mumble.info/downloads"
  android="https://www.mumble.info/downloads/#third-party-clients"
  ios="https://apps.apple.com/us/app/mumble/id443472808?ls=1"
%}

<h3>Worth Mentioning</h3>

<ul>
  <li>
    <a href="https://jitsi.org/jitsi-meet/">Jitsi Meet</a> - Jitsi Meet is a free and open-source multiplatform voice (VoIP), video conferencing, and instant messaging application.

    {% include badge.html
    color="warning"
    icon="fas fa-exclamation-triangle"
    text="Requires WebRTC"
    tooltip="Our Firefox tweaks recommend disabling WebRTC as it can be used to leak your IP address even behind a VPN, which is why Tor Browser disables it."
    %}

    {% include badge.html
    color="warning"
    icon="fas fa-exclamation-triangle"
    link="https://jitsi.org/security"
    text="Multiparty meetings are not E2EE"
    %}

    See also <a href="https://github.com/jitsi/jitsi-meet/wiki/Jitsi-Meet-Instances">list of public Jitsi Meet instances</a>.
  </li>
</ul>
<h3>Related Information</h3>

<ul>
  <li>More information about Mumble:</li>
  <ul>
  <li><a href="https://wiki.mumble.info/wiki/Running_Murmur">Running Mumble Server</a> and <a href="https://wiki.mumble.info/wiki/Murmur.ini">its config file</a>, particularly <a href="https://wiki.mumble.info/wiki/Murmur.ini#obfuscate">obfuscating IPv4 addresses</a> and <a href="https://wiki.mumble.info/wiki/Murmur.ini#Process_Administrivia">logging</a></li>
  <li><a href="https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/Mumble">Torifying Mumble</a>
  </ul>
</ul>