List of SIP software

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{{more citations needed|date=April 2012}}

This list of SIP software documents notable software applications which use Session Initiation Protocol (SIP) as a voice over IP (VoIP) protocol.

Servers

= Free and open-source license =

A SIP server, also known as a SIP proxy, manages all SIP calls within a network and takes responsibility for receiving requests from user agents for the purpose of placing and terminating calls.

= Proprietary license =

  • 3Com VCX IP telephony module: back-to-back user agent SIP PBX
  • 3CX Phone System, for Windows, Debian 8 GNU/Linux
  • Aastra 5000, 800, MX-ONE
  • Alcatel-Lucent 5060 IP Call server
  • Aricent SIP UA stack, B2BUA, proxy, VoLTE/RCS Client
  • AskoziaPBX
  • Avaya Application Server 5300 (AS5300), JITC certified ASSIP VoIP
  • Bicom Systems IP PBX for telecoms
  • Brekeke PBX, SIP PBX for service providers and enterprises
  • Cisco SIP Proxy Server, Cisco unified border element (CUBE), Cisco Unified Communication Manager (CUCM)
  • CommuniGate Pro, virtualized PBX for IP Centrex hosting, voicemail services, self-care, ...
  • Comverse Technology softswitch, media applications, SIP registrars
  • Creacode SIP Application Server Real-time SIP call controller and IVR product for carrier-class VoIP networks
  • Dialogic Corporation Powermedia Media Servers, audio and video SIP IVR, media and conferencing servers for Enterprise and Carriers.
  • Dialexia VoIP Softswitches, IP PBX for medium and enterprise organizations, billing servers.
  • IBM WebSphere Application Server - Converged HTTP and SIP container JEE Application Server
  • Interactive Intelligence Windows-based IP PBX for small, medium and enterprise organizations
  • Kerio Operator, IP PBX for small and medium enterprises
  • Microsoft Lync Server 2010 & 2013
  • Mitel Communications Director
  • NEC SV7000 back-to-back user agent SIP PBX
  • NEC UNIVERGE 3C Unified Communications and Collaboration software
  • Nokia Siemens Networks hiQ8000
  • Nortel SCS500
  • Nortel SIP Multimedia Communication Server 5200
  • Objectworld UC Server
  • Oracle Communications Converged Application Server (OCCAS)
  • Oracle WebLogic SIP Server
  • Spirent SIP Server Platform
  • ShoreTel IP phone systems with unified communications and contact center built in
  • Snom One free/blue/yellow (Snom acquired and renamed pbxnsip) (SIP)
  • Speedflow Communications VoIP class 4/5 softswitches with integrated billing, transcoding, SIP-H.323 converter.
  • Sterlite Technologies Neox IPPBX, IMS - ISC, Dial Center - OmniChannel Call Center, IVR products
  • Sun Microsystems Sun GlassFish Communication Server
  • Tadiran Telecom Coral Ipx family and Aeonix softswitch
  • Tandberg Video Communication Server - SIP application server, media server and H.323 gateway
  • Unify OpenScape Voice, OpenScape 8000 SIP softswitch, mediaserver, ... (SIP)
  • Voice Elements Inventive Labs' .NET Voice Development software and SIP stack platform.
  • Zultys MX250/MX30 IP PBXs for SMB and enterprise
  • Unified Communication Platform NextOS from Nextiva{{Cite web|title=How These 3 Companies Improved Their Customer Experience By Working On (Not In) Their Businesses|url=https://www.forbes.com/sites/micahsolomon/2018/06/24/how-3-businesses-improved-the-customer-experience-by-working-on-their-businesses-not-just-in-them/|access-date=2025-06-20|work=forbes.com}}

Clients

= Free and open-source license =

  • Ekiga (formerly known as GnomeMeeting). SoftPhone, Video Conferencing and Instant Messenger. Since 2013, no longer maintained but still available under declining number of distributions.
  • Jami, with GTK/Qt GUI, also supports IAX2 protocol, for Linux, OS X, Windows GPL
  • Jitsi, a Java VoIP and Instant Messaging client with ZRTP encryption, for FreeBSD, Linux, OS X, Windows; LGPL
  • Linphone, with a core/UI separation, the GUI is using Qt libraries, for Linux, OS X, Windows, and mobile phones (Android, iPhone, Windows Phone, BlackBerry)
  • Telephone, OS X softphone written in Cocoa/Swift
  • Twinkle, using Qt libraries, GPL, for Linux
  • Yate client, using Qt libraries,{{cite web|url=http://www.yate.null.ro/pmwiki/index.php?n=Main.YateClient|title=Yate client page|access-date=2011-12-01|archive-date=2012-01-08|archive-url=https://web.archive.org/web/20120108133024/http://yate.null.ro/pmwiki/index.php?n=Main.YateClient|url-status=dead}} GPL{{cite web|url=http://www.yate.null.ro/pmwiki/index.php|title=Yate official page|access-date=2011-12-01|archive-date=2011-11-21|archive-url=https://web.archive.org/web/20111121054901/http://yate.null.ro/pmwiki/index.php|url-status=dead}}

= Proprietary license =

  • Blink, for Mac
  • Librestream's 2500 Camera, 5000HD camera, Onsight Cube (wearable/modular camera), Onsight Connect (Windows, iOS, Android).{{cite web|url=https://librestream.com/company-news/onsight-sip-service/|title=Librestream Releases a Fully Managed Onsight SIP Service for Onsight Customers|date=8 May 2009|url-status=dead|archive-url=https://web.archive.org/web/20180512112344/https://librestream.com/company-news/onsight-sip-service/|archive-date=12 May 2018|publisher=Librestream}}
  • LifeSize Desktop, for Windows
  • Phoner and PhonerLite, for Windows, Voice: G.711, G.722, G.726, GSM, iLBC, Speex, Opus; security: TLS, SRTP, ZRTP
  • Polycom PVX, for Windows. Voice: G.711, G.722, G.722.1, G.728, G.729A, Siren Codec; Video: H.261, H.263, H.264; Data: T.120, People+ Content, H.239, H.323 Annex Q far-end camera control

= Discontinued =

  • QuteCom, formerly named OpenWengo, using Qt libraries, GPL, for Windows, Mac, and RPM- DEB-based Linux,{{cite web|url=http://qutecom.org|website=qutecom.org|title=homepage|access-date=19 December 2014}} discontinued in 2016
  • Gizmo5, formerly PhoneGaim, discontinued in 2011
  • Empathy, using GTK libraries and Telepathy framework, GPL, discontinued in earliest visible, 2021.{{Cite web|title=Empathy is currently no longer in development (see also Attic/Unmaintained).|url=https://wiki.gnome.org/action/show/Attic/Empathy?action=show&redirect=Apps%2FEmpathy|website=wiki.gnome.org}}
  • Windows Messenger versions 4 and 5 (not to be confused with Windows Live Messenger or MSN Messenger which do not support SIP)

Mobile clients

= Free and open-source license =

  • Jami for Android, iOS; GPL v3
  • Linphone for Android, BlackBerry, iPhone, Windows phone; GPL v2
  • Sipdroid for Android, GPL v3

= Proprietary license =

Session border controllers

{{main|Session border controller}}

Enabled firewalls

  • Check Point VPN-1 firewalls, include complete SIP support for multiple vendors
  • The firewall feature in Cisco IOS includes complete SIP support
  • Cisco PIX/ASA firewalls include complete SIP support
  • D-Link Firewall DFL-210/260/800/860/1600/2500 supports SIP (SIP-ALG) with firmware 2.20.01.05 and above
  • Fortinet, all FortiGates running v280/v300 builds
  • Intertex SIP transparent routers, firewalls and ADSL modems, for broadband deployments and SOHO market
  • Juniper Networks Netscreen and SRX firewalls include complete SIP Application Layer Gateway support
  • Linux Netfilter's SIP conntrack helper fully understands SIP and can classify (for QOS) and NAT all related traffic
  • Netopia Netopia supports ALG
  • PF, built-in OpenBSD firewall PF can handle the NAT through the "static-port" directive and the bandwidth control through the built-in queuing system of SIP connections
  • pfSense, a firewall/router distribution based on FreeBSD and PF; has QoS that properly tags VoIP traffic and a SIP proxy package that is available for NATed endpoints. Its functionality can be expanded with packages like FreeSWITCH, a free/open source software communications platform for making SIP, voice and chat driven products.
  • Secure Computing, SnapGear firewall includes siproxd SIP proxy, Sidewinder 7 firewall includes a SIP proxy
  • SonicWall, supports SIP
  • ZyXEL ZyWALL P1, 2Plus, 5 UTM, 35 UTM, 70 UTM, 1050, USG 100, USG 200, USG 300, USG 1000 supports SIP-ALG

Libraries

Test tools

  • Codenomicon Defensics: commercial test automation framework
  • Ixia (company) commercial SIP-VoIP and Video test and emulation and load test platform
  • Mu Dynamics: commercial SIP-VoIP, RTSP-IPTV Triple Play service assurance platform

See also

References