Vetted Score
4.6
/ 5.0
Earns 4.6/5 for its robust SIP support, strong encryption, and true cross‑platform availability, backed by an active open‑source community.
Key Features
Cross-Platform SIP Compatibility
Supports standard SIP protocols, enabling seamless voice and video calls on desktops and mobile devices.
End-to-End Encryption
Offers ZRTP and SRTP encryption for secure communications, protecting privacy.
Integrated Instant Messaging
Built-in chat with file transfer, presence, and group messaging capabilities.
Frequently Asked Questions
Yes, Linphone is released under the GPL/LGPL license and can be used commercially at no cost.
Linphone implements ZRTP for voice and SRTP for video, providing end‑to‑end encryption.
Yes, native apps are available for Windows, macOS, Linux, iOS, and Android, ensuring consistent functionality across platforms.
Featured Lists & Comparisons
Top 20 Alternatives to Jami in Free VoIP Software
Top 20 Alternatives to Ekiga in Free VoIP Software
Top 30 Free VoIP Software
Top 20 Alternatives to 3CX (Free Edition) in Free VoIP Software
Top 20 Alternatives to SIPgate in Free VoIP Software
Top 20 Alternatives to Grandstream Wave in Free VoIP Software
Top 20 Alternatives to Zoiper in Telephony Software
Top 20 Alternatives to Callcentric in Free VoIP Software
Top 20 Alternatives to Zoiper (Free) in Free VoIP Software
Top 20 Alternatives to Asterisk in VoIP Software
Specifications
Pricing Model
Completely free and open-source; optional paid services for premium support and cloud hosting.
Supported Platforms
WindowsmacOSLinuxiOSAndroid