Blink (SIP client)

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Developer(s) AG Projects
Initial release December 1, 2009 (2009-12-01)
Stable release

Pro 4.2.1 (March 20, 2015; 26 days ago (2015-03-20)) [±] [1]

Qt 1.2.2 (March 25, 2015; 21 days ago (2015-03-25)) [±] [2]
Written in Python
Operating system Mac OS X, Microsoft Windows and GNU/Linux
Size 30M Cocoa version
20M Qt version
Available in English
License Blink License (free software versions + Shareware versions) [3]

Blink is an SIP client distributed under the Blink license (GNU GPLv3 with the exception of possibility to include Proprietary software modules for commercial purpose) [3][4]

The software is written in Python for Cocoa. and lately it was ported to Qt for supporting Microsoft Windows and GNU/Linux platforms.


Blink is based on the Session Initiation Protocol, and beyond voice over IP, its features also include video, instant messaging, file transfer and multi-party conferencing sessions based on MSRP protocol, remote desktop sharing using RFB protocol (VNC), and SIMPLE presence using XCAP protocol.

Privacy and Security[edit]

Mac OSX version of Blink implements end-to-end encryption and peer verification for chat media using OTR protocol, audio and video media using ZRTP protocol (all versions).


External links[edit]