Kamailio VS freeswitch

Compare Kamailio vs freeswitch and see what are their differences.

Kamailio

Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms - (by kamailio)

freeswitch

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device. (by signalwire)
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Kamailio freeswitch
1 3
2,128 2,996
2.3% 4.5%
9.9 8.6
4 days ago 3 days ago
C C
GNU General Public License v3.0 or later GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Kamailio

Posts with mentions or reviews of Kamailio. We have used some of these posts to build our list of alternatives and similar projects.
  • What's the use of fd passing?
    1 project | /r/C_Programming | 8 Dec 2023
    Multi-process server applications using a prefork model are one example. You might have one process dedicated to accepting new connections over the network and maybe doing an initial handshake, and then a bunch of worker processes handling the actual connections. Kamailio's CDP module is built like this (https://github.com/kamailio/kamailio/tree/master/src/modules/cdp)

freeswitch

Posts with mentions or reviews of freeswitch. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-29.
  • Virtual line to offer audiobooks by phone?
    1 project | /r/VOIP | 17 Aug 2022
    Hopefully an update to allow speed changes will land... https://github.com/signalwire/freeswitch/pull/244
  • Ask HN: Did Plivo silently abandon open sourcing their software?
    4 projects | news.ycombinator.com | 29 Apr 2022
    Some clarification on what you mean would be great.

    When I look at their organization on Github I see quite a few active projects e.g. "Sharq" - SHARQ Server is an flexible, rate limited queuing system based on the SHARQ Core library and Redis. (https://github.com/plivo/sharq-server) as well as client packages in quite a few languages.

    Beyond that the documentation you referenced clearly points out that FreeSwitch (https://github.com/signalwire/freeswitch) is the telephony engine (https://web.archive.org/web/20130314113846/http://docs.plivo...) and the install script from the docs shows that their roots are in Pilvo being a Python web app (https://github.com/plivo/plivoframework/blob/master/scripts/...). I also see a few Django applications in their repositories as well.

    Thus, they open sourced their software. Are they open sourcing all of their software? Likely not. It could be that they open sourced much of their code and then got no contributions.

    If they weren't receiving any contributions in alignment with their development, there would be no value for them to continue to have that distraction from running their business. It could also be that they didn't have the resources to _maintain_ external facing repositories, issues, and the communities around them.

    Providing a more clear explanation of your expectations would help get you the best answer.

  • UDM Pro listening on undocumented TCP port 2856 with cert valid for 100 years - what is this and how do I turn it off?
    1 project | /r/Ubiquiti | 1 Apr 2021
    FreeSwitch is a telecom stack similar to Asterisk. See here: freeswitch. It would be to support VoIP on the UDMP.

What are some alternatives?

When comparing Kamailio and freeswitch you can also consider the following projects:

Asterisk - The official Asterisk Project repository.

libresbc - An open source Session Border Controller 🌟 The SBC you dream about 🗽 LibreSBC will help you save thousands of dollars.

Homer - HOMER - 100% Open-Source SIP, VoIP, RTC Packet Capture & Monitoring

pjproject - PJSIP project

Routr - âš¡ The future of programmable SIP servers.

chan-sccp - Replacement for the SCCP channel driver in Asterisk. Extended features include Shared Lines, Presence / BLF, customizable Feature Buttons, and Custom Device State. Visit our discussion mailing list for help and join us as a developer if you like.

ASTPP - Open Source VoIP Billing Solution http://www.astppbilling.org | Report a bug https://jira.astppbilling.org

Ostel

pade - Pàdé (Yoruba word for Meet) is a browser extension (Chrome/Edge) based unified communications desktop client for Openfire.

SipXcom - Unified Communications System

PHP SIP Parsing/Rendering Library - :phone: SIP Parsing/Rendering Library for PHP