If you are currently using a Video/Voice Calling app like Google Hangouts, Skype, Viber or Zoom, you should pick an alternative here. Please note that many of the above instant messengers also support {% include badge.html color="info" text="VoIP" %}. The software listed below are 
primarily Voice/Video focused.
 
{% 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://apps.apple.com/us/app/linphone/id360065638"
%}
{% include cardv2.html
  title="Jitsi Meet"
  image="/assets/img/svg/3rd-party/jitsi.svg"
  website="https://jitsi.org/jitsi-meet/"
  privacy-policy="https://jitsi.org/security/"
  description='Jitsi Meet is a free and open-source multiplatform voice (VoIP), video conferencing, and instant messaging application with optional E2EE. It can be used from the browser, in