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Blink

Blink Description
Blink is a Session Initiation Protocol (SIP) client distributed under the Blink license (GNU GPLv3 with the exception of possibility to include Proprietary software modules for commercial purpose)
The software is written in Python for Cocoa, and lately it was ported to Qt for supporting Microsoft Windows and GNU/Linux platforms.
A list below shows Blink alternatives which were either selected by us or voted for by users. You can filter this list by tags and platforms

Blink Alternatives

  • Jitsi by [https://jitsi.org/index.php/Development/TeamAndContributors Jitsi Team and Contributors,]

    Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application for Windows, Linux, Mac OS X and Android. It supports...

    Tags: 2003 Software, Aim Clients, Crossplatform Free Software, Free And Opensource Android Software, Free Instant Messaging Clients, Free Software Programmed In Java, Free Voip Software, Free Xmpp Clients, Instant Messaging Clients Programmed In Java, Macos Instant Messaging Clients, Portable Software, Videoconferencing Software Programmed In Java, Videotelephony, Voice Over Ip Clients Programmed In Java, Voip Software, Windows Instant Messaging Clients
  • YXA by Magnus Ahltorp, Fredrik Thulin

    YXA is a program written in Erlang implementing a telephone private branch exchange (PBX) was written by Magnus Ahltorp at Royal Institute of Technology (KTH) in the end of 2002. In February 2003,...

    Latest version of YXA is 1.0 and it was released on 2007-11-05.

    Tags: Free Voip Software, Free Business Software, Free Software Programmed In Erlang, Free Communication Software, Software Using The Bsd License, Telephone Exchanges, Videotelephony
  • Yate by NullTeam;

    Yate (Yet Another Telephony Engine) is free and open source communications software with support for video, voice and instant messaging. It is an extensible, GPL licensed PBX. It is written in C++...

    Latest version of Yate is 5.4.0 and it was released on 2014-04-25.

    Tags: Voip Software, Free Voip Software, Software That Was Ported From Gtk To Qt
  • Sippy B2BUA

    Sippy B2BUA is a RFC3261-compliant Session Initiation Protocol (SIP) Back-to-back user agent (B2BUA) software distributed under the terms of GPL Free Software...

    Tags: Voip Software, Free Voip Software
  • Sipdroid by Dr. Pascal Merle

    Sipdroid is a voice over IP (internet protocol, VoIP) application for the Android operating system using the Session Initiation Protocol. Sipdroid is free and open source software released under...

    Tags: Free And Opensource Android Software, Free Voip Software
  • GNU Gatekeeper

    The GNU Gatekeeper (abbreviated as GnuGk) is an open-sourced project that implements an H.323 Gatekeeper based on the OpenH323 or H323Plus stack. A gatekeeper provides address translation,...

    Latest version of GNU Gatekeeper is 4.7 and it was released on 2017-09-21.

    Tags: Free Voip Software, Free Communication Software, Free Server Software, Free Software Programmed In C, Crossplatform Free Software, Network Address Translation, Videotelephony
  • FreeSWITCH by Many contributors

    FreeSWITCH is a free and open source application server for real-time communication, WebRTC, telecommunications, video and Voice over Internet Protocol (VoIP). Multiplatform, it runs on Linux,...

    Tags: Free Voip Software, Luascriptable Software
  • FreePBX Distro by Sangoma Technologies Corporation

    The FreePBX Distro is an open source unified communications software system that consists of a graphical user interface (GUI) for configuring, controlling, and managing Asterisk PBX software. The...

    Latest version of FreePBX Distro is 10.13.66 and it was released on 2016-04-01.

    Tags: Free Voip Software, Freepbx, Asterisk, Telecommunications
  • FreePBX by FreePBX Project

    FreePBX is a web-based open source graphical user interface (GUI) that manages Asterisk, a voice over IP and telephony server. FreePBX is licensed under the GNU General Public License version 3. It...

    Tags: Free Voip Software, Unifiedcommunications, Freepbx, Software Using The Gnu Agpl License, Software Using The Gpl License
  • Coccinella by Mats Bengtsson

    Coccinella (from the latin "coccinella", ladybird) is a free and open-source cross-platform client for the XMPP/Jabber-instant messaging-protocol. The software is written in the Tcl/Tk language,...

    Latest version of Coccinella is 0.96.20 and it was released on 2010-09-29.

    Tags: Xmpp Clients, Free Instant Messaging Clients, Free Voip Software, Free Software Projects, Free Software Programmed In Tcl, Instant Messaging Clients For Linux, Macos Internet Software, Windows Instant Messaging Clients, 1999 Software, Software That Uses Tk
  • Twinkle by Michel de Boer, Luboš Doležel

    Twinkle is a free and open-source app for voice communications over Voice over IP (VoIP) protocol. It is designed for Linux operating systems and uses the Qt toolkit for its graphical user...

    Tags: Free Voip Software, Cryptographic Software, Internet Privacy Software, Secure Communication, Software That Uses Qt, Kde Software
  • Signal by Open Whisper Systems and contributors

    Signal is an encrypted communications application for Android and iOS. It uses the Internet to send one-to-one and group messages, which can include files, voice notes, images and videos, and make...

    Tags: Crossplatform Software, Cryptographic Software, Free And Opensource Android Software, Free Instant Messaging Clients, Instant Messaging Clients, Free Security Software, Free Software Programmed In Java, Free Voip Software, Instant Messaging Clients Programmed In Java, Internet Privacy Software, Ios Software, Secure Communication
  • Telephone

    Telephone is a softphone for macOS developed by 64 Characters. It uses Session Initiation Protocol for communication. Telephone is distributed as free software under...

    Latest version of Telephone is 1.2.6 and it was released on 2016-12-19.

    Tags: Free Voip Software
  • OpenSIPS by OpenSIPS Project

    OpenSIPS is a free software implementation of the session initiation protocol (SIP) for voice over IP (VoIP) that can be used to handle voice, text and video communication. OpenSIPS is intended for...

    Tags: Voip Software, Free Voip Software
  • MicroSIP

    MicroSIP is a portable SIP softphone based on the PJSIP stack available for Microsoft Windows. It facilitates high quality VoIP calls (p2p or on regular telephones) based on the open SIP...

    Latest version of MicroSIP is 3.10.5 and it was released on 2015-08-06.

    Tags: Free Voip Software, Windows Multimedia Software
  • Cipango by Cipango Team

    Cipango is a VoIP extension to the ]] standard. It also offers support of Diameter...

    Tags: Voip Software, Free Voip Software
  • callcenter by DIDWW Ireland Limited

    call.center is a softphone for OS X, Windows, Android and iOS. It uses Session Initiation Protocol for communication. call.center is distributed as free software. call.center is a standalone...

    Tags: Free Voip Software
  • trixbox by Fonality

    trixbox (formerly Asterisk@Home) is a software PBX based on Asterisk. trixbox was initially released under the name Asterisk@Home. In October 2006 it was renamed to trixbox after Digium requested...

    Tags: Free Voip Software, Telephone Exchanges, Free Business Software, Communication Software, Asterisk
  • SIPfoundry sipXecs by SIPfoundry

    sipXecs is an open source enterprise communications system. It was initially developed as a proprietary voice over IP telephony server in 2003 by Pingtel Corporation in Boston, MA, and later...

    Latest version of SIPfoundry sipXecs is 14.04.2 and it was released on July 7, 2014.

    Tags: Collaborative Software, Free Voip Software, Instant Messaging, Opensource Cloud Applications, As A Service, Software Using The Gnu Agpl License
  • CSipSimple by Régis Montoya

    CSipSimple is a Voice over Internet Protocol (VoIP) application for Google Android operating system using the Session Initiation Protocol (SIP). It is open source and free software released under...

    Latest version of CSipSimple is {{#property:P348}} and it was released on 2014-11-30.

    Tags: Free And Opensource Android Software, Free Voip Software, Cryptographic Software, Internet Privacy, Secure Communication, Android Software
  • Wire by Wire Swiss GmbH

    Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser clients. It uses the Internet to make...

    Tags: Crossplatform Software, Ios Software, Free And Opensource Android Software, Free Instant Messaging Clients, Instant Messaging Clients, Formerly Proprietary Software, Free Security Software, Free Voip Software, Cryptographic Software, Secure Communication, Internet Privacy Software, Swiss Brands
  • Asterisk by Digium

    Asterisk is a software implementation of a telephone private branch exchange (PBX); it allows attached telephones to make calls to one another, and to connect to other telephone services, such as...

    Tags: Free Voip Software, Free Business Software, Free Software Programmed In C, Free Communication Software, Telephone Exchange Equipment, Videotelephony, Luascriptable Software, Asterisk, 1999 Software
  • Bicom Systems by Bicom Systems

    Bicom Systems is a producer and vendor of Asterisk (PBX)-based unified communications solutions for VoIP businesses. Bicom Systems uses open standards telephony to create proprietary turnkey...

    Latest version of Bicom Systems is Version 4.0 and it was released on 2016-03-17.

    Tags: Unified Communications, Teleconferencing, Videotelephony, Telephone Service Enhanced Features, Free Business Software, Free Voip Software, Free Software Programmed In C, Free Communication Software, Telephone Exchange Equipment, Luascriptable Software, Asterisk
  • Ekiga by Damien Sandras

    Ekiga ( formerly called GnomeMeeting) is a VoIP and video conferencing application for GNOME and Microsoft Windows. It is distributed as free software under the terms of the GNU General Public...

    Tags: Voip Software, Free Voip Software, Teleconferencing, Groupware, Collaboration, Social Networking Services, Online Chat, Free Instant Messaging Clients, Gnome Applications, Videotelephony, 2000 Software, Videoconferencing Software That Uses Gtk, Instant Messaging Clients That Use Gtk, Voice Over Ip Clients That Use Gtk
  • Empathy by Guillaume Desmottes, Xavier Claessens

    Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication over various IM protocols. Empathy was...

    Tags: 2003 Software, Applications Using Dbus, Free Instant Messaging Clients, Free Internet Relay Chat Clients, Free Software Programmed In C, Free Voip Software, Gnome Applications, Instant Messaging Clients That Use Gtk, Unix Internet Relay Chat Clients, Videotelephony, Voice Over Ip Clients That Use Gtk, Yahoo Instant Messaging Clients
  • KPhone by Team (See web-site)

    KPhone is a SIP User Agent for Linux. It implements the functionality of a VoIP Softphone but is not restricted to this. Licensed under the GNU General Public License, KPhone is free software....

    Latest version of KPhone is Kphone SI 1.2 and it was released on 2008-11-22.

    Tags: Voip Software, Free Voip Software, Software That Uses Qt
  • Mumble by Mumble VOIP Team

    Mumble is a voice over IP (VoIP) application primarily designed for use by gamers and is similar to programs such as TeamSpeak. Mumble uses a client-server architecture which allows users to talk...

    Latest version of Mumble is 1.2.19 and it was released on 2017-01-27.

    Tags: Free Software Programmed In C, Free Voip Software, Internet Software For Linux, Macos Internet Software, Software Using The Bsd License, Voice Over Ip Clients That Use Qt, Voip Software, Windows Internet Software
  • MySIPSwitch

    MySIPSwitch is a Voice over IP (VoIP) open-source software under BSD licence and a free...

    Tags: Voip Software, Free Voip Software, Voip Services, Telephony, Software Using The Bsd License
  • Ring

    GNU Ring (formerly SFLphone) is a SIP-compatible softphone and SIP-based instant messenger for Linux, Microsoft Windows, OS X and Android. Developed and maintained by the Canadian company...

    Latest version of Ring is 1.0 and it was released on 2017-07-21.

    Tags: Voip Software, Free Voip Software, Teleconferencing, Groupware, Collaboration, Social Networking Services, Online Chat, Free Instant Messaging Clients, Gnome Applications, Instant Messaging Clients That Use Gtk, Voice Over Ip Clients That Use Gtk
  • QuteCom by MBDSYS

    QuteCom (previously called WengoPhone) is a free-software SIP-compliant VoIP client developed by the QuteCom (previously OpenWengo) community under the GNU General Public License (GPL). It allows...

    Tags: Instant Messaging Clients That Use Qt, Voice Over Ip Clients That Use Qt, Videoconferencing Software That Uses Qt, Free Instant Messaging Clients, Free Voip Software, Macos Instant Messaging Clients, Windows Instant Messaging Clients, Mozilla Addons, Videotelephony
  • Kamailio by Kamailio Team

    SIP Express Router (SER) is a SIP server licensed under the GNU General Public License, merged in 2012 into Kamailio, one of its forks. It can be configured to act as SIP registrar, proxy or...

    Latest version of Kamailio (former SIP Express Router - SER) is 5.0.2 and it was released on 2017-06-14.

    Tags: Voip Software, Free Voip Software
  • GNUMail by Collaboration World

    GNUMail (a.k.a. GNUMail.app) is a free and open source, cross-platform mail client for GNUstep and Cocoa. It is the official mail client of GNUstep and is also used in Étoilé. It was inspired by...

    Latest version of GNUMail is 1.2.2 and it was released on 2014-10-26.

    Tags: Email Client Software For Linux, Macos Email Clients, Free Email Software, Unix Internet Software, Portable Software, Free Software Programmed In Objectivec, Software That Uses Gnustep