Blink is the best real-time communications client using the SIP protocol.
You can use it with many SIP providers, on the LAN using Bonjour and with SIP2SIP, a free service.
Elegant, simple to use and feature-full
Features
Voice and Video
- Studio Audio Quality (Opus codec)
- H.264, VP8 and VP9 video codecs
- Acoustic Echo Cancellation
- End-to-end Encryption (ZRTP)
IM & Presence
- Chat Sessions (MSRP)
- End-to-end Encryption (OTR)
- Presence (SIMPLE)
- Server Storage (XCAP)
File Transfers
- File Sessions (MSRP)
- Encryption (TLS)
- Progress Reports
- Delivery Confirmation
Screen Sharing
- Help Family Remotely
- Collaboration at Work
- Surf Internet Together
- Integrated with Audio
Conferencing
- Manage Participants
- VoIP, IM and Presence
- File Transfers
- Screen Sharing