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Linphone. Free Open-Source SIP Client for Audio and Video Calls
Linphone is a free and open-source SIP client that works on Android, iOS, Windows, macOS, and Linux. We explain what SIP is and how to use Linphone for secure communication without a phone number.
In this video, we show how to register with an email address, explore the app settings, make HD audio and video calls, use secure chat, and organize conference calls. We also explain how ZRTP end-to-end encryption works and how to verify that no one is listening to your conversations.
In this video, we show how to register with an email address, explore the app settings, make HD audio and video calls, use secure chat, and organize conference calls. We also explain how ZRTP end-to-end encryption works and how to verify that no one is listening to your conversations.