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