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» OpenSIPS Summit - 4th of August 2014, Chicago, USA
An 100% OpenSIPS event that aims to provide the necessary knowledge to understand and use OpenSIPS.
Speakers: Grasshoper, Jibe Mobile (Sprint), TextPlus, Vicidial and more
Headlines: 1.11 LTS release, OpenSIPS Call Center, scalable and distributed setups
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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
 1.11.2 - latest LTS Release
1.10.2 - stable release
1.8.5 - LTS release
2.0 - NG version
» Donate
 As OpenSIPS is free software, please support our work by making a donation to the project.
» VoIP Account
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Latest News...


1.8, 1.10 and 1.11 Minor Releases
2nd of July 2014 Minor releases for the 1.8, 1.10 and 1.11 OpenSIPS branches, which contain the latest bug fixes. Read more...


OpenSIPS Control Panel 6.0 released
25th of June 2014 Releasing OpenSIPS Control Panel 6.0, compatible with OpenSIPS 1.11.x! Read more...


OpenSIPS 1.11 stable release
8th of May 2014 The new OpenSIPS 1.11 stable version has now been released. Check out the latest features added! Read more...


New module - Call Center
20th of March 2014 The Call Center module implements an inbound call center system with call flows (for queuing the received calls) and agents (for answering the calls).
Read more...


OpenSIPS at FOSDEM '14
16th of January 2014 The OpenSIPS team will be attending FOSDEM '14 conference, 1-2 February 2014, holding a lightning talk focusing on building fully redundant, distributed VoIP platforms. Read more...


New module - b2b_sca
13th of December 2013 OpenSIPS devel branch is now enhanced with a new module that provides Shared Call/Line Appearance functionality. Read more...


Dispatcher & Dynamic Routing enhancements
10th of December 2013 The Dispatcher and Dynamic Routing are now able to provide state persistence for gateways / destinations. Read more...

Community Tweets...


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.
Read more...


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.
Read more...


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


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


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


Monitoring OpenSIPS with SNMP
19th of September 2012 Using Zabbix in order to monitor OpenSIPS via SNMP.
Read more...


Page last modified on July 02, 2014, at 05:47 PM