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Top Competitors to Consider
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#2 Jitsi Meet
Open‑source video‑conferencing platform with end‑to‑end encryption, screen sharing, and no account required.
#3 Linphone
Free SIP‑based softphone for desktop and mobile, offering voice, video, and instant messaging with strong encryption.
#4 Mumble
Low‑latency, open‑source voice chat primarily for gamers, featuring positional audio and secure TLS encryption.
#5 Signal
Privacy‑focused messenger with high‑quality voice and video calls, using end‑to‑end encryption.
Decentralized messenger built on the Matrix protocol, supporting encrypted voice and video calls.
#7 Discord
Free community platform offering voice channels, video calls, and screen sharing; free tier supports unlimited servers.
Popular video‑conferencing tool with 40‑minute limit on group meetings; includes voice‑only calls and screen sharing.
#9 Google Meet
Free video‑meeting service from Google, allowing up to 100 participants for 60 minutes per meeting.
Collaboration hub with chat, voice, and video calling; free plan supports unlimited chat and up to 60‑minute meetings.
#11 Telegram
Cloud‑based messenger offering encrypted voice calls and group video chats for up to 1,000 participants.
#12 WhatsApp
Widely used mobile app with end‑to‑end encrypted voice and video calls, supporting up to 8 participants.
#13 Viber
Free messaging app with high‑definition voice and video calls, plus community chat features.
Cross‑platform SIP softphone offering voice and video calling, with support for multiple accounts.
#15 Ekiga
Open‑source SIP and H.323 softphone for Linux and Windows, providing voice, video, and conference capabilities.
#16 SIPdroid
Android SIP client that turns your phone into a VoIP endpoint, supporting voice calls over any SIP provider.
#17 Tox
Peer‑to‑peer, encrypted instant messenger with voice and video calling, requiring no central server.
#18 Wire
Secure collaboration platform offering encrypted voice, video, and messaging for personal and business use.
Open‑source team chat that can be extended with voice and video calling via WebRTC plugins.
#20 FreeSWITCH
Scalable open‑source telephony platform that can be used to build custom VoIP services, including voice and video.
#21 Linphone Desktop
Desktop‑focused version of Linphone with advanced call management, conference bridges, and SIP account integration.