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Welcome to

This is the home of the reSIProcate projects.

The reSIProcate components, particularly the SIP stack, are in use in both commercial and open-source products. The project is dedicated to maintaining a complete, correct, and commercially usable implementation of SIP and a few related protocols.

Quick start[edit]

If you want to set up a SIP proxy for regular voice, video, chat or WebRTC, please see the RTC Quick Start guide, it provides step-by-step instructions to install the SIP proxy using the Linux packages.

Why choose reSIProcate[edit]

  • Extensive range of transports: UDP, TCP, TLS, DTLS and now WebSockets (WS/WSS) for WebRTC
  • Flexibility: use reSIProcate as low-level SIP parsing API, mid-level API for dialog management or high-level API for conversation management/rapidly developing softphones, PBXes and B2BUAs - and Plugin support using C++ and Python too
  • Depth: extensive coverage of many SIP-related RFCs, including features like OUTBOUND, Identity and more
  • Multiple platforms, including Linux, Windows, FreeBSD, Mac OS, Android, iPhone
  • Multiple CPUs supported, including mainstream x86 chipsets, Itanium, PowerPC, MIPS, ARM, S/390 and more (see here)
  • Generous BSD-like license terms
  • Thousands of test cases validated on every release on multiple platforms
  • First-class C++: understandable and extendable to meet your needs using OO-design
  • Convenient packages available on Debian, Fedora, Ubuntu and other platforms


Announcements Checkins
Add your company's logo to the We Use ReSIProcate page.

2015-10-02 - reSIProcate 1.10.0 released - see the announcement for details.

2015-05-21 - repro Presence Server available soon! - see the repro Presence Server Announcement page for details.

2014-09-16 - reSIProcate source code repository has migrated from SVN to Git, currently hosted on Github.

2014-02-11 - reSIProcate v1.9.0 has been released (including WebRTC support and other cool features). See the v1.9.0 release page for details of new features, including session accounting, Android builds, WebSocket/WebRTC, DSO, Python, UAS PRACK and more.

2014-01-18 - The Debian Project has chosen reSIProcate (repro SIP proxy and reTurn server) to power the federated SIP services for their community which includes over 1,000 leading free software developers.

2013-12-19 - Merry Christmas - Python scripting support has been added to the repro SIP proxy in reSIProcate. You can now implement routing logic in Python scripts without having to recompile the proxy.

2013-12-09 - Please test the latest upcoming v1.9.0 beta (including WebRTC support) from the preview directory and give feedback on the mailing lists. See the v1.9.0 release page (draft) for details of new features, including WebSocket/WebRTC, DSO, Python, PRACK and more.

2013-11-12 - UAS Prack support is finally arriving! - see the UAS Prack Announcement page for details.

2013-08-05 - The reSIProcate 1.8.12 release is now available! - see the release page for details.

2013-06-15 - Scott Godin has written a blog about Configuring repro for WebRTC

2013-04-05 - Daniel Pocock has written a blog about getting started with reSIProcate development on Linux

2013-02-15 - Explanation of WebRTC and SIP over WebSockets and how the reSIProcate project solves various pieces of the puzzle

2013-01-09 - Free, Open, Secure and Convenient Communications presentation for FOSDEM 2013 in Brussels, 2-3 February, co-presented by reSIProcate contributor Daniel Pocock, an interview is also available

2012-09-19 - repro SIP proxy overview presented at FreeSWITCH community weekly conference call.

2012-09-17 - New document posted: repro 1.8 Overview

2012-08-10 - has published a Federated VoIP Quick Start Guide based on repro, reTurn Server and ejabberd

2012-07-20 - Video and slides from the DebConf12 presentation about Free (as in Freedom) VoIP, Communications and Messaging - reTurn and repro demonstrated at 29 minutes into the video


Commits: repro: SQL backends: singleResultQuery: distinguish error from empty result set

2015-11-18 16:34:40
<pre style="white-space: pre-wrap; width: 81ex;">repro: SQL backends: singleResultQuery: distinguish error from empty result set</pre>
Commits: Merge pull request #32 from tasifacuj/tcp_connection
2015-11-09 22:26:21
<pre style="white-space: pre-wrap; width: 81ex;">Merge pull request #32 from tasifacuj/tcp_connectionImplement server error conditions:implement
Commits: Implement server error conditions
2015-10-26 09:44:59
<pre style="white-space: pre-wrap; width: 81ex;">Implement server error conditions* implement, paragraph 8</pre>
Commits: build: try radcli
2015-10-23 18:07:09
<pre style="white-space: pre-wrap; width: 81ex;">build: try radcli</pre>
Commits: RADIUS: add support for radcli client library
2015-10-23 18:05:23

<pre style="white-space: pre-wrap; width: 81ex;">RADIUS: add support for radcli client library</pre>

Overviews of the Projects[edit]

The reSIProcate SIP stack

The repro proxy/registrar

The Dialog Usage Manager (DUM) (a User Agent API above the stack)

The TFM Test Framework

The reTurn STUN/TURN Client and Server

The recon Conversation Manager (a User Agent API with media support above DUM)

Current Release[edit]

See the release announcements for the latest source code release

All users of reSIProcate are encouraged to use the most recent release.

Getting Started[edit]

The reSIProcate projects moved to in November 2006. If you still have working copies that need to be migrated, see the transition page for instructions.