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» OpenSIPS 2.2.0 stable LTS is released for the public! Built-in clustering, advanced SIP capturing and HEP routing, WSS, SQLite, generic SQL Cacher, new Accounting interface 
» The OpenSIPS Summit - 10th - 11th of May 2016, in Amsterdam, NL
The 2016 OpenSIPS Summit in Europe, unveiling OpenSIPS 2.2 with its native clustering support, enhanced SIP capturing capabilities and more new cool features. Register now

OpenSIPS is an Open Source SIP proxy/server for voice, video, IM, presence and any other SIP extensions.

OpenSIPS is a multi-functional, multi-purpose signaling SIP server - it can act as SIP Router/Switch, SIP Registrar, Application Server, Redirect Server, Load Balancer / Dispatcher, Back-to-Back User Agent, Presence Server, IM Server, Session Border Controller, SIP Front-End, NAT traversal Server, IP Gateway (SMS, XMPP) and others - see the full Set of Features.

OpenSIPS is recommended for any kind of SIP scenario / service by:

  • the high throughput - tens of thousands of CPS, millions of ‏simultaneous calls (see official tests)
  • the flexibility of routing and integration - routing script for implementing custom routing logics, several interfacing APIs (see the Manual)
  • the effective application building - more than 120 modules to provide features, for SIP handling, for backend operations, for integration, for routing logics (see List of Modules)
» Download OpenSIPS
 2.2.0 - stable LTS release
2.1.2 - stable release
1.11.6 - stable LTS release
2.3-dev - devel version
» Who is Using OpenSIPS
 See who is using OpenSIPS project
» Donate
 Support OpenSIPS by making a donation to the project.
» VoIP Account
 Free VoIP Service by OpenSIPS
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Latest News...

OpenSIPS 2.2.0 stable LTS is out
20th of May 2016 We are glad to announce that after several iterations, OpenSIPS 2.2.0 stable LTS is finally released! Read more...

OpenSIPS 2.2.0-rc2 is out
20th of May 2016 After a bunch of bug fixes done during the last days, the second release candidate for the upcoming 2.2.0 is available! Read more...

OpenSIPS 2.2.0-rc1 is out
9th of May 2016 Beta phase is over for the upcoming 2.2.0, resulting in a first release candidate! Read more...

OpenSIPS 2.2.0-beta is out
25th of Mar 2016 First on the 2.2 line, the beta version is out, with many new features to be tested and used ! Read more...

NEW clusterer module in OpenSIPS 2.2
25th of Mar 2016 You can now easily share dialogs, user location and rate limits information using the new clusterer module in OpenSIPS 2.2! Read more...

Enhanced SIP capturing with OpenSIPS 2.2
25th of Mar 2016 More powerful and flexible SIP tracing, HEPv3 switching and more ! Read more...

SQL Cacher with OpenSIPS 2.2
25th of Mar 2016 New module to cache an arbitrary number of tables from your preferred SQL database ! Read more...

New Accounting interface in OpenSIPS 2.2
25th of Mar 2016 Bye, Bye flags, Welcome functions, for a more flexible and powerful accounting ! Read more...

Community Tweets...

Building Telephony Systems with OpenSIPS - Second Edition
3rd of February 2016 The Second Edition of the book is now available on Packt Publishing web site, uncovering OpenSIPS 2.1 for all the users.

OpenSIPS Brazil Community
25th of September 2013 OpenSIPS Brazil is a project for creating documentation and community of people interested in OpenSIPS. Fresh tutorials already available on their wiki.

OpenSIPS Embedded Perl Module
20th of September 2013 Tutorial on the OpenSIPS Perl Module and how to do proper testing of your Perl code Read more...

OpenSIPS and Apple Push Notification
12th of April 2013 Great tutorial on OpenSIPS and Apple Push Notification service(APNS) integration.

Twilio seems to be using OpenSIPS
20th of March 2013 Saúl Ibarra Corretgé claims that Twilio is using OpenSIPS.

OpenSIPS with Cassandra Backend
21th of January 2013 Tutorial covering setting up OpenSIPS with Cassandra as it's cache store.

OpenSIPS and A2Billing
12th of January 2013 Integration of OpenSIPS, Asterisk and A2Billing.

Page last modified on May 27, 2016, at 06:13 PM