Twinkle Alternatives for Windows
Jitsi Desktop (previously SIP Communicator) is a legacy audio/video and chat communicator with full encryption, precedessor of Jitsi Meet .
- - Jitsi Desktop is the most popular Web-based, Windows, Mac & Linux alternative to Twinkle.
- - Jitsi Desktop is the most popular Open Source & free alternative to Twinkle.
Jitsi Desktop FeaturesDiscontinued
Jitsi Desktop is not actively developed anymore: last version, released in October 2017, can be still downloaded from GitHub. Its successor is Jitsi Meet
Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.
- - Linphone is the most popular Android, iPhone, iPad & Android Tablet alternative to Twinkle.
Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure.
The most secure and anonymous messenger, encrypted with Blockchain.
Adamant Messenger Features
Softphone for VoIP, CAPI und TAPI. This application enables voice connections to landline, cellular network and VoIP. Phoner can be used as softphone on stationary and mobilecomputer devices attached to anlogue or digital (ISDN) subscriber lines and as SIP client.
KeeperChat - The leading secure messaging app.
• Private vault for messages, photos and videos • Private, encrypted media gallery (nothing is saved on device’s camera roll) • Biometric login and self-destruct protection for vault • Message retraction and self-destruct timer • Tw.
QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship product of the QuteCom project is a softphone which allows you to make free PC to PC video and voice calls, and to integrate all your IM contacts...Discontinued
The official website is no longer available. Last version, 2.2.1, released in May 2011, can be still downloaded from Wayback Machine.
Lightweight portable SIP softphone with BLF and customizable keypad built with libre/librem/baresip BSD-licensed stack.