Top 9 Open-Source Alternatives to CSipSimple

The top open-source alternatives to CSipSimple are Linphone, Lumicall, and Signal. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Linphone Landing Page
1

Linphone

Linphone is an internet phone or Voice Over IP phone (VoIP).
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 4 social mentions
Lumicall Landing Page
2

Lumicall

Free calls using open technology on Android.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging
Signal Landing Page
3

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions
Jami Landing Page
4

J

Jami

Application and Data, Collaboration, and Web and Video Conferencing
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 9 social mentions
Tox Landing Page
5

Tox

Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Instant Messaging 28 social mentions
RingCentral Landing Page
6

RingCentral

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Pricing:
- Open Source
- Freemium
- Free Trial
- $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)
#Communication #VoIP #Cloud Contact Center 3 social mentions
Element.io Landing Page
7

Element.io

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
Pricing:
- Open Source
- Free
#Group Chat & Notifications #Communication #Chat 1 social mentions
Wire Landing Page
8

Wire

Private & Secure Messenger
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 14 social mentions
BigBlueButton Landing Page
9

BigBlueButton

Engage Your Online Students. BigBlueButton is a web conferencing system designed for online learning.
Pricing:
- Open Source
#Web And Video Conferencing #LMS #Group Chat & Notifications 17 social mentions