Top 4 Open-Source Alternatives to Call2friends

Call2friends

High-quality cheap and free international calls online to any mobile or landline numbers from internet and free calling app - cheaper than other VoiP providers. Try it now!

Product categories

Chat Cloud Contact Center Communication Enterprise Communication Group Chat & Notifications Instant Messaging Messaging Online Meetings Team Collaboration VoIP Web And Video Conferencing

Summary

The top open-source alternatives to Call2friends are Linphone, Mumble, 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
Mumble Landing Page
2

Mumble

Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Chat 2 social mentions
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
RingCentral Landing Page
4

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