Welcome To FreeSWITCH
The World's First Cross-Platform Scalable FREE Multi-Protocol Soft Switch
FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any other form of media. It was created in 2006 to fill the void left by proprietary commercial solutions. FreeSWITCH also provides a stable telephony platform on which many telephony applications can be developed using a wide range of free tools.
FreeSWITCH was originally designed and implemented by Anthony Minessale with the help of Brian West and Michael Jerris. All 3 are former developers of the popular Asterisk open source PBX. The project was initiated to focus on several design goals including modularity, cross-platform support, scalability and stability. Today, many more developers and users contribute to the project on a daily basis.
We support various communication technologies such as Skype, SIP, H.323 and GoogleTalk making it easy to interface with other open source PBX systems such as sipXecs, Call Weaver, Bayonne, YATE or Asterisk.
FreeSWITCH supports many advanced SIP features such as presence/BLF/SLA as well as TCP TLS and sRTP. It also can be used as a transparent proxy with and without media in the path to act as a SBC (session border controller) and proxy T.38 and other end to end protocols.
FreeSWITCH supports both wide and narrow band codecs making it an ideal solution to bridge legacy devices to the future. The voice channels and the conference bridge module all can operate at 8, 12, 16, 24, 32 or 48 kilohertz and can bridge channels of different rates. The G.729 codec is also available under a commercial license.
FreeSWITCH builds natively and runs standalone on several operating systems including Windows, Max OS X, Linux, BSD and Solaris on both 32 and 64 bit platforms.
FreeSWITCH supports FAX, both over audio and T.38, and can gateway between the two.
Our developers are heavily involved in open source and have donated code and other resources to other telephony projects including openSER, sipXecs, The Asterisk Open Source PBX and Call Weaver.
a Spec Sheet is available on our Wiki.
FreeSWITCH Weekly News and Notes
Another busy week in the land of FreeSWITCH. As you know we have been doing some work on the FreeSWITCH project's infrastructure. We are happy to report that this work is essentially complete. Thank you for your patience in this process. We've experienced intermittent outages but thanks to the efforts of Brian West and Raymond Chandler these have been kept to a minimum. We also thank Ken Rice for his hard work during this time. His knowledge and experience have been invaluable.
Last week we had a very interesting discussion from Chad Engler about his nodesl library - a connector between node.js and ESL. Chad describes himself as a Web developer learning the telephony side of things. However, we were all impressed with how much knowledge he had with using ESL given the relatively short amount of time he's been working with it. This week we will be looking in on some Windows-centric ways of handling real-time data and related PBX items. The following week, on October 31, we will be hearing from our friends over at Redshift Networks. They will be giving us close-up look at some of the worldwide SIP attacks that are being perpetrated against FreeSWITCH and other IP telephony servers.
On a personal note I would like to thank everyone who volunteered to be a technical reviewer of the new edition of the FreeSWITCH book. I was overwhelmed with just how many people who are willing to volunteer their time. Packt Publishing will be contacting those who've been selected for this important job. This is a great community and we are all glad to be a part of it.
Take care and have a great week.