FreeSWITCH

FreeSWITCH FreeSWITCH is a cross-platform scalable free open source multi-protocol softswitch and media engine.

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 o

f 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.

Registration prices increase soon.Lock in your ClueCon pass before the next pricing tier on June 1st.Www.cluecon.com/reg...
05/29/2026

Registration prices increase soon.

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Adam Kalsey burned $40/hour in tokens on day one. He joins ClueCon Weekly to talk about what actually works, model tieri...
05/28/2026

Adam Kalsey burned $40/hour in tokens on day one. He joins ClueCon Weekly to talk about what actually works, model tiering, blast radius, credential management, and the agent ("Poppy") that now runs SignalWire's product ops.

This week on ClueCon Weekly, Luca sits down with Adam Kalsey, VP of...

ClueCon wouldn’t happen without our event partners.They’re the ones helping bring this community together—supporting the...
05/28/2026

ClueCon wouldn’t happen without our event partners.

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Memorial Day Sale going on now. Register for ClueCon at www.cluecon.com/register using code FLASH. ClueCon is where real-time communications meets production-grade AI.

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Most companies think they've "done AI" once they launch a chatbot. In this week's CCW, Pavel Oborin (Lead AI Engineer at...
05/21/2026

Most companies think they've "done AI" once they launch a chatbot. In this week's CCW, Pavel Oborin (Lead AI Engineer at Revity) breaks down why that's just stage one — and what it actually takes to build AI that delivers real business value.
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AI Beyond the Chat Interface: Integrating Intelligence Into Busines...

ClueCon is where the future of Voice AI becomes real. Register for ClueCon now during our Memorial Day sale using code F...
05/21/2026

ClueCon is where the future of Voice AI becomes real.

Register for ClueCon now during our Memorial Day sale using code FLASH.

ClueCon is where the future of Voice AI becomes real.
August 10-14, 2026

ClueCon wouldn’t happen without our event partners.They’re the ones helping bring this community together—supporting the...
05/20/2026

ClueCon wouldn’t happen without our event partners.

They’re the ones helping bring this community together—supporting the builders, the ideas, and everything that makes ClueCon what it is.

Huge thank you for being part of it 🙌

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Speaker submissions close May 22.This is your chance to share what you’re building, deploying, and learning with the Clu...
05/20/2026

Speaker submissions close May 22.

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