Business SIP Providers
Provider Plan Details Monthly Rate *
8x8 8x8 IP Trunking
  • Unlimited calls to US and Canada
  • Softphone and mobile app available
  • 2012 Market Leader Award
Corvisa SIP Trunking
  • 24/7 expert US-based support
  • Carrier-grade network with QoS SLAs
  • Toll-free, E911, CNAM, INUM, T1/PRI
  • 40+ Features, Including Free Video CRM
  • Easy Setup- Use Any Bandwidth and Phones
  • Salesforce AppExchange Partner
Broadvoice SIP BroadVoice SIP
  • 5 lines for $55, additional lines only $2
  • Unlimited Inbound
  • month long trial period

About OpenSIPS

OpenSIPS (Open SIP Server) (former OpenSER) is a 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 ā€¸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)

OpenSIPS Summits

What is OpenSIPS Summit ?

The OpenSIPS Summit is a conferencing event that aims to provide the necessary knowledge to understand and use OpenSIPS. It is an 100% OpenSIPS event focused on:
  • presenting what OpenSIPS is
  • what is OpenSIPS place in SIP environments, integration considerations
  • usage scenarios for OpenSIPS
  • real case studies with OpenSIPS
  • open discussions on OpenSIPS matters
  • open talks on future directions for OpenSIPS

Who should attend ?

If you are looking to discover, understand and evaluate OpenSIPS, the OpenSIPS Summit is the right place to be. We will answer to your questions like:
  • what OpenSIPS can do for my SIP network
  • what are the OpenSIPS capabilities, features and limits
  • how to extend, expand and enhance my SIP service with OpenSIPS.

Details and Schedule

Check the official web page of the OpenSIPS Summits.

Next event is scheduled for OpenSIPS Summit on 4th of August 2014, Chicago, US at the Intercontinental Hotel on the Chicago Magnificent Mile.

Registration is open and you can register at: Register for the Summit on the 4th of August 2014, Chicago, US.

OpenSIPS 2.0 - new design

OpenSIPS undertakes a major work in redesigning OpenSIPS for a better performance, scalability and programmability.

To find out the addressed problems, the solution, the design and the work status, visit the OpenSIPS 2.0 web page.

OpenSIPS News

See all the news on our official news page.

OpenSIPS news archive

OpenSIPS Certification

OpenSIPS project has an official certification program - OpenSIPS Certified Professional (OCP).

What is good for? - OCP is a worldwide official proof of your skills and knowledge on OpenSIPS usage (administrator).

How to get it ? - you need to pass an online exam covering SIP and OpenSIPS area.

Who issues it ? - the certificate is issued and guaranteed by OpenSIPS project via the OpenSIPS foundation.

All the details on the OpenSIPS certification can be found on

OpenSIPS Webinars

OpenSIPS project started a series of free Webinars to help people to better understand and work with OpenSIPS / OpenSER.

In the webinars section, you can find the topics of the webinars, the recordings of past webinars, the schedule for the next webinars and registration forms.

OpenSIPS Events

Events around the world where you can meet OpenSIPS folks or OpenSIPS has dedicated sessions or talks.



  • 11th of October 2013, Atlanta, USA, OpenSIPS Summit
  • 8th - 10th of October 2013, Atlanta, USA, OpenSIPS @ AstriCon
  • 5th of August 2013, Chicago, USA, OpenSIPS Summit
  • 2 & 3 February 2013, Bruxelles, Fosdem


  • 7 - 9 August, 2012, Chicago, USA, ClueCon
  • 1 - 3 February, 2012, Miami, USA, OpenSIPS Pavilon @ IT Expo Miami





  • SIPit 23th - Lannion, France, 13th to 17th Ocrober. See the event report
  • OpenSIPS Advanced Programming Course, 11th to 14th of August, Bucharest, Romania. Free registration.
  • ClueCon, 05th of August, Chicago, USA - OpenSIPS fronting and load-balancing media servers and PBXs


Web site


For how to do scripting, see the OpenSIPS Manual
For more advanced topics, see the OpenSIPS Tutorials.

Mailing lists

devel at lists dot opensips dot org
users at lists dot opensips dot org
See more...


SandBox for developing and converging ideas

Project hosting


Multiple trackers are available here


Development Process and status

Practical Examples


OpenSIPS is know to work on
  • most of Linux flavours (OS used for development is mainly Debian)
  • 64b Linux flavours
  • SUN/Solaris
  • FreeBSD
  • OpenBSD
  • NetBSD

Monitoring OpenSIPS

OpenSIPS and Web Interfaces

OpenSER Configuration Auto-generator

Created by: admin, Last modification: Wed 04 of Jun, 2014 (17:21 UTC) by ag

Please update this page with new information, just login and click on the "Edit" or "Discussion" tab. Get a free login here: Register Thanks! - Find us on Google+

Page Changes | Comments


Featured -