SFLPhone
From Guardian Project Wiki
SFLphone is a robust standards-compliant enterprise softphone, for desktop and embedded systems. It is designed to handle several hundreds of calls a day. SFLphone is available under the GNU GPL license, version 3.
- Voice encryption (SRTP)
- ZRTP key exchange protocol
- SDES key exchange protocol
- Signalling encryption (TLS)
- Multiple realms authentification mecanism