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* [[List of codecs]]
* [[List of codecs]]
* [[Comparison of audio coding formats]]
* [[Comparison of audio coding formats]]
* [[List of video telecommunication services and product brands]]


== References ==
== References ==

Revision as of 13:14, 7 June 2015

This is a comparison of Voice over IP (VoIP) software used to conduct telephone-like voice conversations across Internet Protocol (IP) based networks. For residential markets, VoIP phone service is often cheaper than traditional public switched telephone network (PSTN) service and can remove geographic restrictions to telephone numbers, e.g. have a PSTN phone number in a New York area code ring in Tokyo.

For businesses, VoIP obviates separate voice and data pipelines, channelling both types of traffic through the IP network while giving the telephony user a range of advanced capabilities.[1]

Softphones are client devices for making and receiving voice and video calls over the IP network with the standard functionality of most "original" telephones and usually allow integration with IP phones and USB phones instead of utilizing a computer's microphone and speakers (or headset). Most softphone clients run on the open Session Initiation Protocol (SIP) supporting various codecs. Skype runs on a closed proprietary network but additional PBX software can allow a SIP based telephone system to connect to the Skype network.[2] Online "Chat" programs now also incorporate voice and video communications.

Other VoIP software applications include conferencing servers, intercom systems, virtual FXOs and adapted telephony software which concurrently support VoIP and PSTN like IVR systems, dial in dictation, on hold and call recording servers.

Some entries below are Web-based VoIP; most are standalone applications.

General softphone clients

Program Operating systems License Costs Protocols Codecs Encryption Max conference peers Other capabilities Latest release
Avaya Application Server 5300 Soft Client Windows Proprietary ? SIP, RTP, Un­known TLS, SRTP Un­known 2.0 (2010)
AudioCodes MobilityPLUS Windows, Android, iOS Proprietary ? SIP, RTP, XMPP, STUN, ICE G.722 wideband, G.711a, G.711u, iLBC, G.729a, SILK, GSM, VP8, H.264, Opus TLS, SRTP Un­known Voice, video, IM, Group chat, content sharing, SMS and MMS over IP services, native and social network contacts integration, incoming call/IM push notifications. (2014)
Blink GNU/Linux, Mac OS, Windows Mixed (free software versions under GNU GPLv3 + shareware versions under gplv3 with exception of including proprietary code) Windows and Linux are free, OSX version is available for a fee in Mac App Store, source code is freely available ICE, SIP, MSRP, RFB (VNC), XCAP Opus, speex, G.722, GSM, iLBC, PCMU, PCMA TLS, SRTP, ZRTP for all versions, OTR/SMP for OSX version only Unlimited IM, File Transfer, Desktop Sharing, Multi-party conference, Wideband Blink Qt
Cisco IP Communicator Windows, Android Proprietary Free (for Cisco SMB Partners only) SCCP (Skinny), SIP, TFTP G.722 wideband, G.711a, G.711u, iLBC, G.729a, G.729ab SRTP Un­known Call Recording, Silent Monitoring, Multiple lines and directory numbers, Configurable speed dial, Calling name and number display, Call Waiting, Call Forward, Call Transfer, Three-Way Calling (conference), Call Park, Call Pickup, Redial, Hold, Barge, Callback, Extension Mobility, Message waiting indicator, iDivert, Meet Me conferencing, Group Pickup, Do Not Disturb 7.0.6 (Jan 2011)
Ekiga Linux, Windows, OpenSolaris GPL Free SIP, H.323, STUN, Zeroconf, XMPP, RTP H.263, H.264/MPEG-4 AVC, Theora, iLBC, Speex, SILK, GSM, ... No Un­known Video, IM, LDAP, Call Forwarding, Call Transfer, Auto-answering, PC to phone, phone to PC, Multiple accounts, USP support, Message waiting indicator, SIMPLE-based presence etc. Template:Latest stable software release/Ekiga
Empathy Linux GPL Free SIP, XMPP (Jingle), ICE (STUN/TURN), Zeroconf Un­known No Un­known IM, multi-user A/V,[3] collaborative applications 45.0[4] (20 September 2023; 10 months ago (2023-09-20)) [±]
Eyeball Chat Windows Proprietary Free SIP, STUN, ICE, XMPP Un­known Yes 5[5] IM, Conferencing, Voice, Video and SIMPLE based presence Windows 3.2 (2009)
eyeBeam Windows Proprietary ? SIP / SIMPLE Un­known TLS, SRTP 6 party audio; 3 party video Voice and Video calling; IM; Import Microsoft Outlook Contacts; USB Support; Call Recording and Conferencing 1.5.20.1 (March 2010)
Google+ Hangouts Linux, Windows, Mac OS X, Android, iOS Proprietary (using libjingle) Free XMPP H.264/SVC, H.264/AVC, H.263 and VP8 SRTP 10 Video, chat, screen sharing, with additional tools available as "Hangout Apps". Template:Latest stable software release/Google+ Hangouts
IBM Sametime Linux, Mac OS X, Windows, mobile Proprietary ? SIP, SIMPLE, T.120 H.323 TLS Un­known IM, File transfer, Voice, Presence, Server stored contact list, HTTP tunneling, plugins, embedable in Lotus Notes[6] 8.5.2 (08. May 2011)
iCall Linux, Mac OS X, Windows, iOS, Android Proprietary Free SIP, AIM, ICQ, XMPP Speex, CELT, WebM TLS, ZRTP Unlimited Video, file transfer, PC to phone, phone to PC, IM (MSN, AIM, ICQ, Yahoo!, XMPP, Google Talk), Voicemail 7.1.522
Jitsi Linux, Mac OS, Windows (all java supported). Experimental Android builds are also available.[7] LGPL Free SIP/SIMPLE, XMPP/Jingle STUN ICE, TURN SILK, G.722, Speex, Opus, G.711 (PCMU/PCMA), iLBC, GSM, G.729, H.264, H.263, VP8 ZRTP, SRTP, TLS Un­known Text messaging, audio/video telephony, IPv6 (often broken,[8] P2P not supported[9]), call recording, 64-bit 2.10 (build.5550) (February 5, 2017; 7 years ago (2017-02-05)) [±]
KPhone Linux (KDE) GPL Free SIP, STUN, NAPTR/SRV Un­known SRTP Un­known Video, voice, IM, external Sessions, IPv6 support for UDP 1.2 (November 2008)
Linphone Linux, Windows, Mac OS, Android, iPhone, BlackBerry GPL Free SIP Speex, Opus, G711, GSM, G.722, VP8 (WebM), H263, MPEG4, Theora and H264 (plugin) TLS, SRTP, ZRTP Un­known Video, IM, STUN, IPv6 (disables IPv4 support when enabled, P2P supported only by version 3.5.1-2) 3.8.0 (March 15 2015)
Messages Mac OS X Proprietary ? SIP AIM ICQ XMPP H263, H264 Un­known Un­known Integrated, PBX independent 7.0 July 25, 2012; 12 years ago (2012-07-25)
MicroSIP Windows GPL Free SIP, STUN, ICE, SIMPLE Speex, iLBC, GSM, G.711, G.722, G.729, SILK, Linear PCM TLS, SRTP Un­known Video, voice, IM and Presence 3.9.7 (February 4, 2015)
Mirial Softphone (Mirial s.u.r.l.) Windows 2000/XP/2003/Vista/7 (including 64bit versions), Mac OS X (x86) Proprietary not free SIP, RTSP H.323 DTLS-SRTP Un­known H.264 Full-HD 1080p video rx/tx, Two independent lines supporting Call Control and 3-Party videoconference in Continuous Presence, G.722.1/C wideband audio, Call recording/export, DV/HDMI/Component capture, Presentation (H.239, RFC-4796), Encryption, Far End Camera Control, GPU accel (D3D and OpenGL) 7.0.24 (May 26, 2010) discontinued
Mumble Linux, Mac OS X, iOS, Windows, Android BSD Free Un­known CELT, Speex, Opus TLS and OCB-AES128 No max (limited only by server bandwidth and memory) Chat with (limited) embedded HTML, Automatic Gain Control, very low latency, Access Control Lists for user management, Customizable In-Game Overlay for OpenGL and DirectX, Directional Audio, Plugin Support, Nested Channels, Echo cancellation for headset free use, Global Public Server List, Logitech G15 support, Push-To-Talk and Voice-Activation 1.2.8 (August 8, 2014)
Nymgo Windows, Android, iOS Proprietary Free SIP, RTP and RTCP Un­known Yes No Address Book integration, Call recording/export, Mute, On Hold, Caller ID definition 4.2.9 (March 2013)
oovoo Mac OS X, iOS, Windows, Android Proprietary Free SIP, RTP and RTCP Un­known Yes No Address Book integration, Call recording/export, Mute, On Hold, Caller ID definition 4.2.9 (March 2013)
Phoner Windows Proprietary Free SIP, TAPI, CAPI Un­known TLS, SRTP, ZRTP 8 Conferencing, call redirection, call recording 3.23 (5 March 2021; 3 years ago (2021-03-05)) [±][10]
PhonerLite Windows Proprietary Free SIP Un­known TLS, SRTP, ZRTP 8 Conferencing, call redirection, call recording 3.20 (7 August 2023; 12 months ago (2023-08-07)) [±][11]
QuteCom Linux, Mac OS X, Windows XP/2000 GPL Free SIP G.711, G.729, iLBC, AMR-NB, G.722, Speex, AMR-WB (G.722.2), H.263, H.263+, H.264, Dirac[12] SRTP, but key exchange via Everbee key Exchange which is not a Standard Un­known Video, IM (MSN, AIM, ICQ, Yahoo!, XMPP, Google Talk), voicemail, wengo to phone, conferencing. 2.2.1 (22 June 2011; 13 years ago (2011-06-22)[13]) [±]
Revation Communicator Windows, Mac OS X Proprietary ? Proprietary G.722, G.711, VP8, Opus TLS and SRTP No max (limited by server mixing services) Secure Multi-Party Chat/Instant Messaging, Presence, VoIP, Video, File Transfer, Desktop Sharing 7.0 (June 2014)
Roger Wilco GameSpy Windows Proprietary ? Proprietary ? ? ? ? 2001
SFLphone Linux GPL3 Free SIP, RTP, IAX2, STUN per account, SRV Audio: Opus, Speex, G.722, G.711, GSM, VP8, G.729, iLBC. Video: H.264, H.263, VP8, MPEG-4 Voice encryption (SRTP with SDES or ZRTP) and signaling encryption (TLS), Multiple realms authentication mechanism Unlimited Gnome/KDE client, address book, multiple accounts, unlimited number of calls, call transfer, call hold/unhold, call recording, Multi-way conferencing 1.4.1 (September 2014)
Skype Linux, Mac OS X, Windows 2000/XP/Vista/7/Mobile (no longer supported), BREW, Windows Phone , Android, iPhone, PSP Proprietary Free Proprietary P2P protocol [a] SILK Advertises proprietary encryption which is not considered secure. 25 starting with version 3.6.0.216. 10 with 2.x Conferencing, video, file transfer, voicemail, Skype to phone, phone to Skype, additional P2P extensions (games, whiteboard, etc...); depending on platform.
Windows, UWP15.123.203.0 / 8 July 2024; 34 days ago (2024-07-08)[14]
Windows, desktop8.123.0.203 / 8 July 2024; 34 days ago (2024-07-08)[14]
macOS8.123.0.203 / 8 July 2024; 34 days ago (2024-07-08)[14]
Linux8.123.0.203 / 8 July 2024; 34 days ago (2024-07-08)[14]
Android8.123.0.203 / 8 July 2024; 34 days ago (2024-07-08)[15]
iOS8.123.0.203 / 8 July 2024; 34 days ago (2024-07-08)[15][16] (iPhone and iPad)
Spikko Windows 2000/XP/Vista/7/Mobile, iPhone, Proprietary Free SIP Un­known Yes 8 Conferencing, voicemail, PC to phone, phone to PC, Free international phone numbers, address book integration; Dec 2010
TeamSpeak Linux, Windows, Mac OS X, FreeBSD, Android, iOS Proprietary Free Un­known CELT, Speex, Opus[17] Yes 32 unlicensed / 512 with Non-Profit License / 2000 Simultaneous Server Conferencing with Tabs, 3D Sound Effects, Scalable Permissions System, Firewall Friendly File Transfers, In-Game Overlay for DirectX & OpenGL Games, Global Public Server List, Plugin System 3.0.13
TeamViewer Linux, Windows, Mac OS X, iOS, Android[18] Proprietary Free (personal use only) Un­known Un­known AES256 Un­known Un­known
Windows (desktop app)15.29.4 / 26 April 2022; 2 years ago (2022-04-26)[19]
macOS15.29.4 / 26 April 2022; 2 years ago (2022-04-26)[20]
Linux15.29.4 / 26 April 2022; 2 years ago (2022-04-26)[21]
Android15.29.96 / 26 April 2022; 2 years ago (2022-04-26)[22]
iOS15.29.1 / 4 May 2022; 2 years ago (2022-05-04)[23]
Windows (UWP app)15.100.209759[24]
Telephone Mac OS X 10.10.2 BSD Free SIP, STUN, ICE Un­known No Un­known Address Book integration 1.1.4 (March 6, 2012; 12 years ago (2012-03-06))
Toktumi Unlimited / Line2 Pro Windows XP/Vista/7, Mac OS X, iOS, Android Proprietary Free Proprietary with SIP core Un­known Un­known 20 Conferencing, voicemail, caller ID, call-waiting, address book integration; auto-attendant, call-forwarding Windows: August 2010 / OS X: October 2010
Tru App Windows 2000/XP/Vista/7, Mac OS X, Linux
iOS, Android, Symbian, BlackBerry OS, 		Proprietary Free SIP, XMPP Un­known Un­known Un­known Chat, file transfer, voicemail, inbound numbers, integration with GTalk, Microsoft Live, Skype
Twinkle Linux GPL Free SIP G.711 A-law μ-law, G.726, GSM, iLBC, Speex narrow wide ultrawide SRTP, ZRTP 3 Conferencing, chat, file transfer, Firefox integration, call redirection, voicemail, support of VoIP-to-Phone services 1.10.3 (February 19, 2022; 2 years ago (2022-02-19)) [±]
Ventrilo Mac OS X, Windows Proprietary Free Un­known Un­known No 8 Conferencing, chat, text-to-speech 3.0.8
Viber Linux[b], Mac OS X[b], Windows[b], Android, Bada, BlackBerry OS, iOS, Series 40, Symbian, Windows Phone Proprietary ? Un­known Un­known Un­known Un­known Varies by platform: Text, picture and video messaging on all, voice calling only on iPhone, Android and Microsoft's Windows Phone
Android20.4.3.0[27] Edit this on Wikidata / 2 July 2023; 13 months ago (2 July 2023)
iOS20.4.0[28] Edit this on Wikidata / 4 July 2023; 13 months ago (4 July 2023)
Windows20.2.0[29] Edit this on Wikidata / 12 June 2023; 13 months ago (12 June 2023)
macOS20.2.0[29] Edit this on Wikidata / 12 June 2023; 13 months ago (12 June 2023)
Linux20.3.0.1[30] Edit this on Wikidata / 14 June 2023; 13 months ago (14 June 2023)
Voice Operator Panel Windows 2000/XP/Vista Proprietary ? SIP, RTP Un­known Un­known Un­known Call forwarding, Call transfer, Call recording, Presence, Outlook integration, Windows Messenger/MSN/Live integration, CRM, Built-in web browser & e-mailer, LDAP, APS. 1.3.2
X-Lite Mac OS, Windows Proprietary Free SIP, STUN, ICE, TURN H.263, H.263+, G.711, iLBC, Speex No 3 VoIP over WiFi / 3G / 4G, Video, Instant Messaging / Presence (SIP SIMPLE), Call Waiting, Call Hold, Call Forwarding, Voice Mail / Messaging Waiting Indication, 3 Way Conferencing, Contacts integration, Background Noise Reduction (BNR), Automatic Gain Control (AGC) Windows and Mac OS: 4.7 (2014)
Yahoo! Messenger Mac OS (8, 9, X), Windows, (Linux/FreeBSD version not VoIP capable) Proprietary Free SIP (using TLS) and RTP (media) Un­known Un­known Un­known Video, file transfer, PC to phone, phone to PC Windows: 11.5.0.228 / May 31, 2012; 12 years ago (2012-05-31)
Mac: 3.0.1 / July 20, 2011; 13 years ago (2011-07-20)
Linux: 1.0.6 / September 2003; 20 years ago (2003-09)
SunOS 5.7: 0.99.17-1 / September 2003; 20 years ago (2003-09)
Solaris 8: 1.0.4 / September 2003; 20 years ago (2003-09)
FreeBSD 4/5: 1.0.4 / September 2003; 20 years ago (2003-09) iOS: 2.2.6/ July 12, 2012; 12 years ago (2012-07-12)
Yate Client Linux, Mac OS, Windows GPL Free SIP, IAX, XMPP, H.323 G.711a, G.711u, GSM 06.10, iLBC, Speex, G.723, G.726, G.728, G.729 SRTP, Perhaps ZRTP? Un­known 4.3 2013-01
Zfone Linux, Mac OS X, Windows Viewable source (includes time bomb provision) SIP, RTP Un­known SRTP, ZRTP Un­known Beta 2008-09-04 (Linux 0.9.224), (Mac OS 0.9.246), (Windows 0.9.206)
  1. ^ It is possible to connect by SIP to the Skype network via additional "Skype Connect" PBX software and alternative (SIP) client software/hardware. Neither the Skype software nor the Skype network supports SIP directly[2]
  2. ^ a b c Viber must be first installed on a mobile phone in order to function on a desktop operating system[25][26]

Discontinued softphone service

4

Mobile phones

For mobile VoIP clients:

Program Operating systems License Open Source Protocols Codecs Encryption Other capabilities Latest release
Acrobits Softphone Android v2.2+, iOS v7.0+ Proprietary No SIP G.711, G.722, iLBC, GSM, G.729 TLS, SRTP, ZRTP VOIP over Wi-Fi or 3G iOS only - Push Notifications, video, number rewriting, address book matching, sms for betamax providers and pennytel Acrobits Softphone (iOS) 5.2, Acrobits Softphone (Android) 3.20
iCall Mobile iOS v4.3+ Freeware / Proprietary No SIP AIM ICQ XMPP, Facebook, Yahoo! Messenger, Windows Live. Speex, CELT, WebM TLS, ZRTP VoIP over Wi-Fi or 3G, SMS, Voicemail. 2.0.1 (as of Apr '12)
Jajah Mobile Web Symbian OS, Windows Mobile (version unknown) web based service, Call back,no download[31] No Un­known Un­known
JusTex by Juphoon iOS v5.1+ Proprietary No SIP PCMA, PCMU, G.722, iLBC, iSAC, Opus, H.264, VP8, H.263 TLS, TCP, UDP, SRTP JusTex Softphone over Wi-Fi or 3G, HD voice and video call, Multiparty call, conference. JusTex (iOS) 3.0.1 updated on 13 July. 2014; JusTex (Android) 3.0 updated on 9 July 2014
Line2 iOS, Android Freeware / Proprietary No Proprietary with SIP core Un­known Un­known Tri-mode calling (cellular, 3G/4G data, Wi-Fi), SMS over IP, visual voicemail, 20-person conference calls, auto-attendant, call-forwarding 1.0.4 Android, 3.2.1 iOS
Media5-fone iOS, Android Proprietary No SIP PCMA, PCMU, G.722*, iLBC, iSAC*, G.729* TLS*, SRTP* Wi-Fi and 3G/4G data, second call*, conference calls*, HD Voice, Bluetooth* (* Additional fees) Un­known
RedPhone by Open Whisper Systems Android GPLv3 Yes A custom signaling protocol.[32] Un­known TLS, SRTP, ZRTP, AES 128[33] VoIP over Wi-Fi or a data connection. Compatible with Signal on iOS. 1.0.3 on Android
Signal by Open Whisper Systems iOS GPLv3 Yes A custom signaling protocol.[32] Un­known TLS, SRTP, ZRTP, AES 128[33] VoIP over Wi-Fi or a data connection. Compatible with RedPhone on Android. TextSecure instant messaging capabilities.[34][35] Template:Latest stable software release/Signal
Sipdroid Android GPL Yes SIP Un­known Un­known Uses Wi-Fi, 3G or EDGE 2.7
Tango by TangoME Inc., iOS, Android, Microsoft Windows, OS X, Windows Phone Freeware / Proprietary Un­known Un­known Un­known Un­known Wi-Fi VoIP out & in, SMS over IP, call-through & call-back, Voice over IP, Instant messaging, Videoconferencing Un­known
Truphone Nokia-Symbian, iOS, Android, BlackBerry Freeware / Proprietary No SIP Un­known Un­known Wi-Fi VoIP out & in, SMS over IP, call-through & call-back, connection management, provisioning Symbian 4.0, iOS 1.11.1
Vopium Symbian, Java ME, Android, BlackBerry RIM, iOS, Windows Mobile 2003 SE and higher Freeware / Proprietary No SIP, MSN, Skype, Yahoo, AOL, ICQ, Google Talk, Facebook & Twitter GSM Un­known Wi-Fi VoIP, GSM call-through, SMS over IP, least cost routing, Synchronisation/back-up of mobile contacts and calendar 2.0
Windows Mobile 6 Windows Mobile 6 Professional/Standard Proprietary No SIP to publicly and non-publicly routable servers Un­known Un­known Wi-Fi Mobile VoIP 6.1
X-PRO for Pocket PC Windows Mobile 2003 (earlier versions support Windows PocketPC 2002) Proprietary, discontinued in April 2007[36] No SIP Un­known Un­known Supported devices: AudioVox Maestro, Compaq/HP iPAQ: 365x, 37xx, 385x, 395x, hx4700, Dell Axim X51, X51v, Toshiba e550, e570. iPAQ 545x and Toshiba e7xx are not supported.[37] 2.2
Yuilop Android, iOS, Windows Phone, BlackBerry OS Freeware No XMPP, RTP iLBC TLS VoIP over 3G/4G/LTE and Wifi, SMS, Group chat, Photo sharing, Location sharing, virtual phone numbers iOS 2.4 (November 26, 2014; 9 years ago (2014-11-26)[38]) [±]

Android 2.0.2 (February 12, 2014; 10 years ago (2014-02-12)) [±]
Windows Phone 7.x 1.0.1.7 (September 12, 2013; 10 years ago (2013-09-12)) [±]
Windows Phone 8.x 1.0.0.4 (September 18, 2013; 10 years ago (2013-09-18)) [±]
BlackBerry OS 1.0.1 (May 31, 2013; 11 years ago (2013-05-31)) [±]
Kindle Fire 2.0 (December 19, 2013; 10 years ago (2013-12-19)[39]) [±]

Frameworks and libraries

Program Operating systems License Protocols/based upon/compatible with Encryption Other capabilities Key and target markets Latest release
Tapioca Linux GPL Telepathy (software) Un­known 0.3.9 June 12, 2006 (2006-06-12)
Telepathy/Farstream Linux, Mac OS X, Windows LGPL SIP, XMPP (Jingle), ICE (STUN/TURN), UPnP No Multi-user A/V conferencing, IM, collaborative applications Mobile devices (Maemo), Linux Desktop spec 0.17.8 July 24, 2008 (2008-07-24)
OPAL Windows, Linux (including embedded variants), Mac OS X MPL SIP, H.323, IAX2, CAPI, VXML Un­known Multi-user A/V conferencing, IM, IVR Softphones, Softswitches, Telephony application servers 3.14.3 October 10, 2014 (2014-10-10)
GNU oSIP Linux, Windows, Mac OS, Android, iPhone, BlackBerry LGPL SIP, SDP Un­known Multi-user A/V conferencing, IM, IVR Softphones, Embedded and Mobile devices, Telephony application servers 4.1.0 December 18, 2013 (2013-12-18)

Server software

Program Operating systems License Protocols/based upon/compatible with Encryption Other capabilities Key and target markets Latest release
3CX Phone System Microsoft Windows Proprietary SIP TLS, SRTP Voice and Video IP telephony, Voice and Video conferencing, voice mail and instant messaging <= 50,000 users 12 (Sep 2013)
AS5300 Linux, Windows Server 2003 Proprietary SIP, UNIStim, MLPP SSL, TLS,

SRTP, SDESC

Voice and Video IP telephony, Voice and Video conferencing, voice mail and instant messaging 1,000 - 25,000 users 1.0 (Jan 2008)
AskoziaPBX no additional OS required (Linux based) GPL / Open core SIP, H.323, IAX, SCCP No ISDN, analog, Voicemail, Conferencing, MOH, ACD, IVR, Call forwarding, Call recording SMEs up to 50 users 2.2.2 (Dec 2012)
Asterisk PBX Linux/BSD, Mac OS X, Solaris GPL / Proprietary [40] SIP, H.323, IAX TLS, SRTP VoIP Gateway, voicemail, basic accounting (can be expanded by interface with ODBC-compliant database), billing, conferencing, hot-desking, IVR trees with conditional logic, call queuing, automated call distribution Enthusiasts, developers, enterprise users (capacity dependent on server design, scalable across multiple servers) 21.3.1 (17 May 2024; 2 months ago (2024-05-17)[41])

20.5.0 LTS (18 October 2023; 9 months ago (2023-10-18)[42])
19.8.1 (7 July 2023; 13 months ago (2023-07-07)[43])
18.20.0 LTS (18 October 2023; 9 months ago (2023-10-18)[44])


Brekeke SIP Server Linux/Microsoft Windows Proprietary SIP TLS, SRTP SIP Registrar, SIP Proxy SIP Service Providers, VoIP service providers, Healthcare, Security 3.3 (Mar 2014)
Brekeke PBX Linux/Microsoft Windows Proprietary SIP TLS, SRTP Voice and Video IP telephony, Voice and Video conferencing, and voice mail Hosted service providers, Mid-large enterprise 3.3 (Mar 2014)
CallMax Softswitch Linux Proprietary SIP, H.323 SSL, TLS, HTTPS Integrated billing, IP PBX Platform, Calling card platform, Callshop module, Customer Web Portal, Retail SMS Platform. SIP Service Providers, Residential & Business VoIP providers, Corporate Clients, Other Class 5 softswitch users 3.5 (May 2015)
CommuniGate Pro Linux/BSD, Mac OS X, Windows, Solaris, HPUX, AIX Proprietary SIP, XIMSS Protocol, XMPP SSL, TLS SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM, and many others... Mobile Operators, ISP's, and SaaS providers 6.0.9 March 31, 2014
Elastix Linux GPL SIP, IAX, H323, XMPP No Unified communication server that also supports chat, mail and fax. Capacity dependent on server design, scalable across multiple servers 2.4.0 (February 6, 2013)
FreeSWITCH Linux/BSD, Mac OS X, Solaris, Windows Mozilla Public License SIP, NAT-PMP, STUN, SIMPLE, XMPP, Google Talk (Jingle), IAX, H.323, MRCP, RSS, Skype TLS, SRTP, ZRTP Recording, Voicemail, Conferencing, RADIUS, ENUM, IM Proxy, Streaming, Media gateway, Soft-PBX, IVR (modular) Large soft-switch users, home PBX users, softphone users 1.10.11 (December 22, 2023; 7 months ago (2023-12-22)[45]) [±]
FreePBX Linux, BSD, Solaris GPL SIP, IAX, H323, XMPP TLS, SRTP, ZRTP Complete PABX Service, based around Asterisk and PHP 5.3. Provides a complete replacement for a legacy non-VoIP phone system. Under current and active development. Scales from Raspberry PI (3 users) to multiple parallel clusters (10K+ simultaneous calls) 12.0 (October 2014)
GNU Gatekeeper Linux/FreeBSD, Mac OS X, Windows XP/2000/Vista/Windows 7 GPL H.323 H.235 H.460.18 firewall traversal, Routing, Accounting video conferencing, VoIP carriers large and small 3.7 (Aug 15, 2014)
MediaCore Softswitch Linux Proprietary H.323, SIP, SMPP SSL, TLS, HTTPS Dynamic routing mechanism, integrated billing, SIP-H.323 protocol converter, Transcoding - codec converter module, Guardian - revenue assurance module, SBC functionality, full and media proxy, SMS support Transit VoIP services providers, VoIP wholesale carriers, VoIP termination providers, SMS carriers 4.5 (March 2015)
Murmur Linux/BSD, Mac OS X, Windows BSD / GPL CELT, Speex, Opus TLS Chat with (limited) embedded HTML, ACLs for user management, Customizable In-Game Overlay, Directional Audio, Plugin Support, Nested Channels Individuals to Small and medium enterprise (25-5000 users) 1.2.8 (August 8, 2014)
Mysipswitch Linux BSD SIP, Ajax SSL SIP proxy server which allows the use of multiple SIP accounts with a single SIP login Individuals August 2007
Objectworld UC Server Windows XP/2003/2008 Proprietary SIP No IP PBX, personal assistants, IVR, automated phone provisioning, fax server, unified messaging, Outlook, Exchange and Lotus Domino/Notes integration, conferencing, outbound dialing Small and medium enterprise (25-2000 users) 4.4.2 (May 2009)
Kamailio/OpenSIPS (formerly known as OpenSER) Linux/BSD, Solaris GPL SIP, XMPP No SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM, least-cost-routing and many others. SIP Service Providers Template:Latest stable software release/Kamailio
snom ONE (formerly pbxnsip) Linux/BSD, Mac OS X, Windows Proprietary SIP SRTP IP PBX, presence indication, IVR, automated phone provisioning, fax server, unified messaging, Outlook, Exchange integration, conferencing, outbound dialing Small and medium enterprise (25-256 users) 3.3.1.3177 (April 2009)
Revation LinkLive Windows server / Linux Proprietary Proprietary TLS, SRTP Secure Unified Communications, Presence, Instant Messaging/Chat, VoIP, Video, Desktop Sharing, File Sharing, IVR, PBX, Voicemail, ACD, Email Server Unified Communications Service Providers 7.0 (June 2014)
SIP Express Router (SER) Linux/BSD, Solaris GPL SIP No SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM, and many others... SIP Service Providers 2.0.0 Ottendorf
sipXecs IP PBX Linux AGPL Native SIP Call Control, XMPP TLS, SRTP Full redundancy (HA), Instant Messaging, Voicemail, User Portal, Admin GUI, plug & play management including phones and gateways, fully featured Enterprises between 10 and 10,000 users, multi-site 14.04.2 (July 2014)
Unison Linux Proprietary SIP, XMPP, IMAP, SMTP, CalDAV SSL, TLS Unified messaging, IP PBX, IVR, instant messaging, calendar server, LDAP server, E-mail server Small and medium enterprise (25-256 users) 3.0 (February 2010)
vzRoom Windows Proprietary SIP SSL, TLS, AES Instant Messaging/Chat, VoIP, Video, Desktop Sharing, Video Sharing, whiteboard, File Sharing, scheduler, recording Individual to small and medium enterprise (2-1,000 users) 0.8.8.735 (November 2010)
Yate BSD, Linux, Mac OS, Windows GPL SIP, IAX, H.323, ISDN, XMPP (Jabber), Jingle (Google Talk), MGCP, SS7 over IP, Cisco SLT (Signalling Link Transport) (SS7 MTP2 backhaul over IP), SCTP, SCCP, TCAP, MAP CAMEL SSL, TLS, SRTP Voice, Video, File Transfer, Data, H323 to SIP Signalling proxy, Instant Messaging, IVR, PC2Phone and Phone2PC gateway, SCCP - GTT routing between networks, Secure Unified Communications, SIP Registrar/Proxy, SIP SBC (session border controller), USSD, Voicemail, VoIP, VoIP to PSTN gateway, Conference server (max 200 voice channels per conference), Call centre server, Prepaid and/or postpaid cards... Deployed on home servers and large networks with millions of users 5.5 (May 2015)

See also

References

  1. ^ "Setting up a SIP Account". www.sessiontalk.co.uk. Retrieved 7 June 2015.
  2. ^ a b "Skype Connect..." skype.com. Microsoft Corporation Inc. Archived from the original on 2014-11-11. Retrieved 15 November 2014.
  3. ^ "Telepathy Q&A from the Boston GNOME Summit". Retrieved 4 February 2014.
  4. ^ "Introducing GNOME 45". 20 September 2023. Retrieved 21 September 2023.
  5. ^ Eyeball Chat 3.2 Features. EyeballlChat.com.
  6. ^ "Telephony with Lotus Sametime software". IBM.com. Retrieved 2010-02-16
  7. ^ "Jitsi (SIP Communicator) Android - Nightly Builds Index". Jitsi.org. Retrieved 2014-11-15.
  8. ^ Interview with Emil Ivov, Deploy360 blog
  9. ^ "[#JITSI-1166] P2P IPv6 calls still do not work with explicit IPv6 addresses, no matter if brackets are used - Java.net JIRA". Java.net. Retrieved 2014-02-13.
  10. ^ Release history on Phoner download page
  11. ^ Changelog on PhonerLite download page
  12. ^ "Supported Codecs". qutecom.org. Retrieved 19 December 2014. {{cite web}}: line feed character in |title= at position 11 (help)
  13. ^ "Announcement: QuteCom 2.2.1". Archived from the original on 2 April 2013.{{cite web}}: CS1 maint: unfit URL (link)
  14. ^ a b c d "Release Notes for Skype for Windows, Mac and Linux". Skype Support. Retrieved 2024-07-30.
  15. ^ a b "Release Notes for Skype on Mobile". Skype Support. Retrieved 2024-07-30.
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  17. ^ "New TeamSpeak3 Client and Server released today". TeamSpeak Systems GmbH. Retrieved 2014-09-10.
  18. ^ "TeamViewer overview". GetApp.
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  20. ^ "macOS v15.29.4 - Teamviewer Support". TeamViewer. 5 May 2022.
  21. ^ "Linux v15.29.4 - Teamviewer Support". TeamViewer. 5 May 2022.
  22. ^ "Android Host v15.29.96 - Teamviewer Support". Retrieved 5 May 2022.
  23. ^ "TeamViewer: Remote Control". App Store. Apple. Retrieved 5 May 2022.
  24. ^ "TeamViewer: Remote Control". Windows Store. Microsoft. Retrieved 19 November 2019.
  25. ^ Brad Chacos, Brad. "Hands on with Viber's new desktop app: It's no Skype". www.pcworld.com. IDG Consumer & SMB. Archived from the original on 2014-07-25. Retrieved 15 November 2014. If you don't have Viber on your phone and try to install the service on your PC, the app will redirect you to its website and ask you to install Viber on your phone first.
  26. ^ Viber Unveils Desktop App
  27. ^ "Android: Viber - Safe Chats And Calls 20.4.3.0". 2 July 2023. Retrieved 7 July 2023.
  28. ^ "iOS: Version History 20.4.0 Jul 4, 2023". 4 July 2023. Retrieved 7 July 2023.
  29. ^ a b "Viber for MacV 20.2.0". 12 June 2023. Retrieved 7 July 2023.
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  32. ^ a b "Signaling Protocol". Retrieved 12 March 2015.
  33. ^ a b "Encryption Protocols". Retrieved 6 March 2015.
  34. ^ Michael Mimoso (29 July 2014). "New Signal App Brings Encrypted Calling to iPhone". Threatpost. Retrieved 27 January 2015.
  35. ^ "Signal 2.0: Private messaging comes to the iPhone". whispersystems.org. Retrieved 3 March 2015.
  36. ^ "Pocket PC SIP Softphone". Counterpath.com.
  37. ^ "Recommended Pocket PCs". Counterpath.com.
  38. ^ http://www.mod-gadget.com/upptalk-app-updated-ipad/
  39. ^ "yuilop - Free texts and SMS". Amazon. Retrieved 10 March 2014.
  40. ^ "Asterisk Commercial Licensing". Digium. Retrieved 12 October 2013
  41. ^ "ChangeLog-21-current". Retrieved 22 May 2024.
  42. ^ "ChangeLog-20-current". Retrieved 27 Oct 2023.
  43. ^ "ChangeLog-19-current". Retrieved 27 Oct 2023.
  44. ^ "ChangeLog-18-current". Retrieved 27 Oct 2023.
  45. ^ "Releases - signalwire/freeswitch". Retrieved 4 March 2024 – via GitHub.
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