An open-source messaging app emphasizing privacy with encrypted communication. Share texts, calls, photos, and videos without ads or trackers, available across major platforms. Developed by Signal Technology Foundation and praised globally for security measures.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- iPad
- Flathub
- Ubuntu
- Debian




Comments about Signal as an Alternative to Telephone
It can't connect to your pbx, the whole point of a softphone.

Signal is the most popular Windows, Android, Mac & iPhone alternative to Telephone.
Signal is the most popular Open Source & free alternative to Telephone.
- Signal is Free and Open Source
- Signal is Privacy focused, Security-focused and Lightweight



























































Signal is not a SIP client