openSIPS | Resources / Features

Resources -> Features

Some of the features that OpenSIPS brings:

robust and performant SIP (RFC3261) Registrar server, Location server, Proxy server and Redirect server
small footprint - the binary file is small size, functionality can be stripped/added via modules
plug&play module interface - ability to add new extensions, without touching the core, therefore assuring a great stability of core components
stateless and transactional statefull SIP Proxy processing
support for UDP/TCP/TLS/SCTP transport layers
IPv4 and IPv6
support for SRV and NAPTR DNS
SRV DNS failover
IP Blacklists
multi-homed (mhomed) and multi-domain support
flexible and powerful scripting language for routing logic
variables support in script - script variables, pseudo-variables (access to the SIP messages), AVPs (values persistent per SIP transactions)
management interface via FIFO file and unix sockets
authentication, authorization and accounting (AAA) via database (MySQL, Postgress, text files), RADIUS and DIAMETER
digest and IP authentication
Presence Agent support (many additional integration features)
XCAP support for Presence Agent
CPL - Call Processing Language (RFC3880)
SNMP - interface to Simple Network Management Protocol
management interface (for external integration) via FIFO file, XMLRPC or Datagram (UDP or unixsockets)
NAT traversal support for SIP and RTP traffic
ENUM support
PERL Programming Interface - embed your extensions written in Perl
Java SIP Servlet Application Interface - write Java SIP Servlets to extent your VoIP services and integrate with web services
load balancing with failover
least cost routing
support for replication - REGISTER offer new functions for replicating client information (real source and received socket).
logging capabilities - can log custom messages including any header or pseudo-variable and parts of SIP message structure.
modular architecture - plug-and-play module interface to extend the server's functionality
gateway to sms (AT based)
multiple database backends - MySQL, PostgreSQL, Oracle, Berkeley, flat files and other database types which have unixodbc drivers
straightforward interconnection with PSTN gateways
dialog support (call monitoring, call termination from proxy side, call profiling)
XMPP gateway-ing ( transparent server-to-server translation)
impressive extension repository - over 70 modules are included in OpenSIPS repository

Scalability:

OpenSIPS can run on embedded systems, with limited resources - the performances can be up to hundreds of call setups per second
used a load balancer in stateless mode, OpenSIPS can handle over 5000 call setups per second
on systems with 4GB memory, OpenSIPS can serve a population over 300 000 online subscribers
system can easily scale by adding more OpenSIPS servers
OpenSIPS can be used in geographic distributed VoIP platforms
straightforward failover and redundancy

Resources -> Features

OpenSIPS 1.6.2

OpenSIPS Control Panel 4.0

Conference on "OpenSIPS 2.0"

OpenSIPS webinar

OpenSIPS 2.0 Design

OpenSIPS webinar

Building Telephony Systems with OpenSIPS 1.6

OpenSIPS 1.6.1 is released

OpenSIPS Development Course

OpenSIPS Bootcamps 2010

User Location is faster

OpenSIPS Control Panel 3.0

OpenSIPS 1.6.0 is released

OpenSIPS VoIP Service

OpenSIPS & Astricon

SVN freeze

New types of script routes

STUN server

Pseudovariable implementation extended

OpenSIPS Asterisk Integration

OpenSIPS 1.5.3 is released

AAA and RADIUS support

OpenSIPS webinar

B2BUA

DB virtual

Codec manipulation

Memcached interfacing

OpenSIPS 1.5.2 is released

OpenSIPS@ClueCon

OpenSIPS webinar

REGISTRAR enhancements

OpenSIPS free webinars

OpenSIPS-CP 2.0 is released

OpenSIPS 1.5.1 is released

OpenSIPS 1.5.0 is released

OpenSIPS 1.4.5 is released

OpenSIPS as Load Balancer

OpenSIPS at Amoocon (AsteriskTAG)