Alternatives to CSipSimple for all platforms with any license

Hangouts

Hangouts is a messaging app that lets you send and receive messages, photos and more, and even start free video and voice calls – one to one or with a group! ...
- Not a SIP client as far as I know Guest • Aug 2015 • 4 agrees and 0 disagrees
Free Windows Web Android iPhone Chrome OS ... Android Tablet iPad Chrome Android Wear
Video calling Share your screen Gmail integration Group chat ... Multi Device Support Sms from PC Video Conferencing Multi-platform support Share your screen SMS Messaging Supports archiving conversations Video chat Voice Call Voice messages WebRTC Add a feature

1012 Like
Jitsi

Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live...
- Jitsi Meet for Android, at least, cannot be configured as a sip client - it only has one entry - "https server" - and that's it. Wireball • Aug 2019 • 1 agrees and 0 disagrees
Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet BSD iPad
SIP Video Conferencing Security & Privacy Privacy-friendly ... Browser based Chat Cross-platform Desktop Sharing File sharing Group chat iPhone/iPod sync Live Meeting Support for Multiple protocols Multiple Account support No download No installation required No Login Required OTR Plugins Privacy focused Share your screen SIP Softphone Unlimited users Video calling Video chat Video Conferencing Voice chat WebRTC Xmpp Add a feature

368 Like
Jami

Voice, video and chat communications, secure, decentralized, strong privacy and freedoms.

Free Open Source Mac Windows Linux Android iPhone ... Android Tablet iPad
File sharing Decentralized File transfer SIP client ... Team messaging Distributed End-to-End Encryption Intercom Support Messaging Multiple languages Peer-To-Peer Privacy focused Privacy-friendly Share your screen SIP Video calling Video chat Video Conferencing Voice chat Add a feature

140 Like
Linphone

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant...
- Open Source SIP Voip client that is actively maintained. nrg200 • Feb 2017 • 0 agrees and 1 disagrees
Free Open Source Mac Windows Linux Web Windows Mobile ... Android iPhone Android Tablet Windows Phone iPad Xfce
SIP client SIP Chat Encrypted VoIP calls ... Live Push Notifications Softphone Video calling Voice chat Add a feature

119 Like
Zoiper

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...

Free Personal $ $ $ Mac Windows Linux Web Android ... iPhone Windows Phone
SIP Change Caller ID Address book integration Automatic call recording ... Softphone Voice chat Add a feature

25 Like
YakYak

What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * ...

Free Open Source Mac Windows Linux Hangouts
Portable Add a feature

20 Like
MicroSIP

MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or on regular telephones) via open SIP...
- I love MicroSIP, but it's Windows only, while CSipSimple is Android. Wireball • Aug 2019 • 0 agrees and 1 disagrees
Free Open Source Windows PortableApps.com
SIP Lightweight Phone calls SIP ... SIP client Softphone Video/Audio Calling Voice chat Add a feature

23 Like
Phoner Second Phone Number

Phoner provides business owner, sales people, lawyers, doctors, police officers and others with a second phone number to protect their identity and also gives the...

Freemium $ $ $ Android iPhone Android Tablet iPad
No features added Add a feature

6 Like
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Fring

Fring is a VoIP (voice over internet) app that allows you to make 2-way video calls, voice calls and live chat for free, from your phone or iPod. It offers video...
- Discontinued
  The apps seem to be no longer updated. Last versions, released in February 2014, can be still downloaded from the appstores.
Freemium Android iPhone
Video calling Voice Call Voice chat Add a feature

54 Like
Sipnetic

Sipnetic is a free VoIP softphone based on the SIP protocol. Sipnetic supports voice and video calls, instant messages, presence information and end-to-end encryption.
- Nice UI, Compatible with latest Android versions, App is in active development pnozolp • Dec 2018
Freemium $ $ $ Android
End-to-End Encryption OTR SIP SIP client ... Video calling Voice chat Voice messages Add a feature

4 Like