Jitsi
Open Source
Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.
Wire
Free
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 cl…
Zoiper
Freemium
Zoiper is an easy to use sip video softphone, with excellent voice quality and easy to setup.
Telephone
Open Source
Telephone allows you to make phone calls over the Internet or your company’s network.
YakYak
Open Source
YakYak is a desktop chat client for Google Hangouts.
Linphone
Open Source
Linphone is a free voice over IP (VoIP) service and SIP client.
CSipSimple
Open Source
CSipSimple is a Voice over Internet Protocol (VoIP) application for Google Android operating system using the Session Initiation Protocol (SIP).
Blink
Freemium
Blink is the best real-time communications client using the SIP protocol.
Phoner
Free
Phoner and PhonerLite are softphone applications for Windows operating systems available as freeware.
Compare MicroSIP with alternatives
Compare CSipSimple and MicroSIP and decide which is most suitable for you.