Comparison of VoIP software

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.

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.[1] 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.

Softphone applications

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
B-Force Communicator Windows, Android Proprietary Freeware / Closed SIP, RTP, RTCP STUN, MSRP Opus, speex, GSM, PCMU, PCMA TLS, SIPS, SRTP, ZRTP, SDES, AES-128, AES-192, AES-256, TwoFish-128, TwoFish-256, ГОСТ 28147-89, ГОСТ Р 34.11-94, ГОСТ Р 34.10-2001 Unknown Voice and video calls, File transfer, Text messaging, Presence 1.1.1.165 (19.02.2016)
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. 4.0.1 (February 21, 2013 (2013-02-21)) [±][2]
Empathy Linux GPL Free SIP, XMPP (Jingle), ICE (STUN/TURN), Zeroconf Unknown No Unknown IM, multi-user A/V,[3] collaborative applications 3.12.11[4] (October 14, 2015 (2015-10-14)) [±]
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". Google Chrome Web Store extension
2013.626.1614.1 (July 9, 2013 (2013-07-09)) [±] [6]
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[7] 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.[8] Apache License 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,[9] P2P not supported[10]), call recording, 64-bit 2.8 (build.5426) (March 19, 2015 (2015-03-19)) [±]
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) 3.9.1 (November 2015)
Messages Mac OS X Proprietary ? SIP AIM ICQ XMPP H263, H264 Unknown Unknown Integrated, PBX independent 7.0 July 25, 2012
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 3.10.11 (December 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 New BSD license 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 1.2.15 (March 5, 2016)
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 12 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 3.08 (29 February 2016 (2016-02-29)) [±][11]
PhonerLite Windows Proprietary Free SIP Unknown TLS, SRTP, ZRTP 8 Conferencing, call redirection, call recording 2.34 (December 2015)
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 (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 [lower-alpha 1] 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.
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[27] 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 3.0.18.2
TeamViewer Linux, Windows, Mac OS X, iOS, Android[28] Proprietary Free (personal use only) Unknown Unknown AES256 Unknown Unknown
Telephone Mac OS X 10.10.2 BSD Free SIP, STUN, ICE Unknown No Unknown Address Book integration 1.1.4 (March 6, 2012)
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
Tox GNU/Linux, Mac OS X, Windows, Android, FreeBSD GPL Free Tox, VP8 Opus, NaCl Unknown Voice, video, instant messaging, file transfers Unknown
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
Tuenti Android, iPhone, Windows Phone Proprietary Free WebRTC, SIP, XMPP iLBC, Opus Yes ? Voice, video, Instant messaging, group chat, photo and video sharing, SMS and MMS, native and social network contacts integration, incoming call/IM push notifications.
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 1.9.0 (July 10, 2015 (2015-07-10)) [±]
Ventrilo Mac OS X, Windows, iOS, Android Proprietary Free Unknown Unknown No 8 Conferencing, chat, text-to-speech 3.0.8
Viber Linux[lower-alpha 2], Mac OS X[lower-alpha 2], Windows[lower-alpha 2], Android, Bada, BlackBerry OS, iOS, Series 40, Symbian, Windows Phone Proprietary ? Unknown Unknown Yes[31] Unknown Varies by platform: Text, picture and video messaging on all, voice calling only on iPhone, Android and Microsoft's Windows Phone
  • Android:
    5.8.0.1736 (April 18, 2016 (2016-04-18)[32]) [±]
  • iOS:
    6.0 (April 19, 2016 (2016-04-19)[33]) [±]
  • Windows Mobile:
    4.5.4 (December 18, 2015 (2015-12-18)[34]) [±]
  • BlackBerry OS:
    4.3.0.728 (April 23, 2014 (2014-04-23)[35]) [±]
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: 4.9.2 (December 2015)Mac OS: 4.9.2 (December 2015)
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
Mac: 3.0.1 / July 20, 2011
Linux: 1.0.6 / September 2003
SunOS 5.7: 0.99.17-1 / September 2003
Solaris 8: 1.0.4 / September 2003
FreeBSD 4/5: 1.0.4 / September 2003 iOS: 2.2.6/ July 12, 2012
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[1]
  2. 1 2 3 Viber must be first installed on a mobile phone in order to function on a desktop operating system[29][30]

Discontinued softphone service

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
B-Force Communicator Android Proprietary No SIP, RTP, RTCP STUN, MSRP Opus, speex, GSM, PCMU, PCMA TLS, SIPS, SRTP, ZRTP, SDES, AES-128, AES-192, AES-256, TwoFish-128, TwoFish-256, ГОСТ 28147-89, ГОСТ Р 34.11-94, ГОСТ Р 34.10-2001 Voice and video calls, File transfer, Text messaging, Presence 0.8.1 (19.02.2016)
CSipSimple Android GPL Yes SIP ? SRTP, SIP over TLS 1.0 and ZRTP ? 1.02.02
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) Proprietary No ? ? ? web based service, Call back,no download[36] ?
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 ? ? 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) ?
Signal by Open Whisper Systems iOS, Android GPLv3 Yes A custom signaling protocol.[37] ? TLS, SRTP, ZRTP, AES 128[38] VoIP and instant messaging over Wi-Fi or a data connection.[39][40] Android 3.15.2 (March 31, 2016 (2016-03-31)[41]) [±]

iOS 2.2 (November 10, 2015 (2015-11-10)[42]) [±]

Sipdroid Android GPL Yes SIP ? ? Uses Wi-Fi, 3G or EDGE 2.7
Tango by TangoME Inc., iOS, Android, Microsoft Windows, OS X, Windows Phone Freeware / Proprietary ? ? ? ? Wi-Fi VoIP out & in, SMS over IP, call-through & call-back, Voice over IP, Instant messaging, Videoconferencing ?
Truphone Nokia-Symbian, iOS, Android, BlackBerry Freeware / Proprietary No SIP ? ? 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 ? Wi-Fi VoIP, GSM call-through, SMS over IP, least cost routing, Synchronisation/back-up of mobile contacts and calendar 2.0
WhatsApp Android, BlackBerry, iOS, Symbian, Windows Phone Freeware / Proprietary No ? ? ECDH, SRTP[43] VoIP and instant messaging over Wi-Fi or a data connection. Android: 2.16.16[44] (April 6, 2016 (2016-04-06)[45]) [±]

BlackBerry: 2.16.4 (March 3, 2016 (2016-03-03)[46]) [±]
iOS: 2.16.1 (April 2, 2016 (2016-04-02)[47]) [±]
Symbian: 2.16.9[48] [±]
Nokia S40 devices: 2.16.4[49] [±]
Windows Phone: 2.16.14 (April 8, 2016 (2016-04-08)) [±]

Windows Mobile 6 Windows Mobile 6 Professional/Standard Proprietary No SIP to publicly and non-publicly routable servers ? ? 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[50] No SIP ? ? 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.[51] 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 (2014-11-26)[52]) [±]

Android 2.0.2 (February 12, 2014 (2014-02-12)) [±]
Windows Phone 7.x 1.0.1.7 (September 12, 2013 (2013-09-12)) [±]
Windows Phone 8.x 1.0.0.4 (September 18, 2013 (2013-09-18)) [±]
BlackBerry OS 1.0.1 (May 31, 2013 (2013-05-31)) [±]
Kindle Fire 2.0 (December 19, 2013 (2013-12-19)[53]) [±]

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
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
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
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

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 [54] SIP, H.323, IAX, MGCP, VOFR, XMPP, Google Talk, TDM 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) 13.8.0 (29 March 2016 (2016-03-29)) [±]

11.22.0 (29 March 2016 (2016-03-29)) [±]

B-Force PBX Windows, Linux Proprietary SIP, MSRP, HTTP TLS SIP Proxy, Registrar, Presence Server, Media Proxy, SIPS Small and medium enterprise (25-2000 users) 1.0
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 3.6 (October 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
Dial-Gate Softswitch PBX Linux/Microsoft Windows Proprietary SIP TLS, SRTP Billing server, real-time account and line monitoring, web-based user interface Softswitch users, service providers 4.3 (June 2014)
Dial-Office IP-PBX Linux/Microsoft Windows Proprietary SIP TLS, SRTP Unified Communications, Conferencing, remote worker support and voice mail Small businesses, Mid-large enterprises 4.1 (Dec 2013)
Elastix Linux GPL SIP, IAX, H323, XMPP TLS, SRTP Unified communication server that also supports chat, mail and fax. Capacity dependent on server design, scalable across multiple servers 2.5.0 (Stable), 3.0.0 (Stable) / 27 October 2014;
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 1.6.7 (April 1, 2016 (2016-04-01)) [±]
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)
HERO Hosted PBX Linux/Microsoft Windows Proprietary SIP TLS, SRTP Unified Communications, billing server, cloud-based management and web interface Mid-large enterprises, VoIP carriers and service providers, Telecom operators 4.3 (Dec 2013)
Kerio Operator Linux, VM Proprietary SIP SSL, TLS, SRTP integrated firewall, Auto attendant, Call queues, Conference calling, Call forwarding, pickup, parking, recording, Click to Call, Video calling, Fax support, Paging, Salesforce.com and CRM integration, Voicemail to email SME 2.4.3 (Sep 03, 2015)
MediaCore Softswitch Linux Proprietary H.323, SIP, SMPP SSL, TLS, HTTPS Dynamic routing mechanism (with LCR, Quality, Percentage, Profit, and Priority based routings, Jurisdictional routing support), 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 4.5.3 (October 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) 1.2.12 (December 20, 2015)
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)
Pexip Linux Proprietary SIP, H323, WebRTC, Chat SSL, TLS, HTTPS, DTLS, SRTP, SDES Virtualized and distributed video and Voice MCU, SIP registrar, H.323 gatekeeper, and WebRTC server which provides business quality HD video and voice interoperability between any combination of SIP, MSSIP (Lync/Skype for business), H.323 and WebRTC conference participants and point-to-point gatewayed calls. Video Conference, gateway, call control/SBC and IVR functionality. Fully virtualized to run in VMWARE, Hyper-V or other hypervisor environment. Servers may optionally be geographically distributed for increased scale & resilience/redundancy and conference bandwidth reductions. JITC certified. Flexible: 5 users-100,000+ users; for small, medium and large enterprises or service provider. May use 1-100+ conference node virtual machines in a single deployment 2015
Kamailio/OpenSIPS (formerly known as OpenSER) Linux/BSD, Solaris GPL SIP, XMPP TLS, SRTP SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM, least-cost-routing and many others. SIP Service Providers 4.0.1 (25 April 2013 (2013-04-25)) [±]
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. 1 2 "Skype Connect...". skype.com. Microsoft Corporation Inc. Archived from the original on 2014-11-11. Retrieved 15 November 2014.
  2. ↑ "Ekiga 4.0.1 [STABLE] available". www.ekiga.org. 21 February 2013. Retrieved 2014-05-09.
  3. ↑ "Telepathy Q&A from the Boston GNOME Summit". Retrieved 4 February 2014.
  4. ↑ "ANNOUNCE: Empathy 3.12.11". 14 October 2015. Retrieved 15 February 2016.
  5. ↑ Eyeball Chat 3.2 Features. EyeballlChat.com.
  6. ↑ "Chrome Web Store Hangouts". Retrieved July 11, 2013.
  7. ↑ "Telephony with Lotus Sametime software". IBM.com. Retrieved 2010-02-16
  8. ↑ "Jitsi (SIP Communicator) Android - Nightly Builds Index". Jitsi.org. Retrieved 2014-11-15.
  9. ↑ Interview with Emil Ivov, Deploy360 blog
  10. ↑ "[#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.
  11. ↑ Release history on Phoner download page
  12. ↑ "Supported Codecs". qutecom.org. Retrieved 19 December 2014.
  13. ↑ Announcement: QuteCom 2.2.1
  14. ↑ Support, Skype (18 June 2015). "What's new in Skype for Windows desktop?". Skype Help. Microsoft. Retrieved 18 June 2015.
  15. ↑ CALLAHAM, JOHN (21 Jan 2016). "Messaging + Skype gets another small update". Windows Central. Windows Central. Retrieved 4 April 2016.
  16. ↑ "Messaging + Skype". Microsoft Store. Microsoft. Retrieved 4 April 2016.
  17. ↑ Tong, Karen (3 September 2014). "Skype 1.8 for Xbox One now has photo viewing and enhanced Snap experience". Skype Blogs. Microsoft. Retrieved 10 October 2014.
  18. ↑ CALLAHAM, JOHN (16 December 2014). "Skype receives another minor update on Windows Phone 8.1". Windows Central. Windows Central. Retrieved 4 April 2016.
  19. ↑ "Skype". Microsoft Store. Microsoft. Retrieved 4 April 2016.
  20. ↑ Guzik, Aga (12 August 2014). "Skype for modern Windows 3.1: now you can edit messages". Skype Blogs. Microsoft. Retrieved 10 October 2014.
  21. ↑ The Skype Team (16 February 2016). "What's new in Skype for Mac?". Skype Support. Microsoft. Retrieved 18 February 2016.
  22. ↑ Cimmino, Marco (18 June 2014). "Skype 4.3 for Linux". Skype Blogs. Microsoft. Retrieved 10 October 2014.
  23. ↑ The Skype Team (16 February 2016). "What's new in Skype for Android?". Skype Support. Microsoft. Retrieved 18 February 2016.
  24. ↑ "Skype for iPhone". iTunes Preview. Apple Inc. Retrieved 4 April 2016.
  25. ↑ "Skype for iPad". iTunes Preview. Apple Inc. Retrieved 4 April 2016.
  26. ↑ "Skype". BlackBerry World. BlackBerry. Retrieved 14 November 2014.
  27. ↑ "New TeamSpeak3 Client and Server released today". TeamSpeak Systems GmbH. Retrieved 2015-08-04.
  28. ↑ "TeamViewer overview". GetApp.
  29. ↑ 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.
  30. ↑ Viber Unveils Desktop App
  31. ↑ Viber adds end-to-end encryption and hidden chats as messaging app privacy wave grows
  32. ↑ Viber Media S.à r.l. (18 April 2016). "Viber - Android Apps on Google Play". Google Play. Google. Retrieved 20 April 2016.
  33. ↑ Viber Media, Inc (19 April 2016). "Viber On the App Store on iTunes". App Store. Apple. Retrieved 20 April 2016.
  34. ↑ Viber Media (2015-12-18). "Viber". Windows Phone Marketplace. Retrieved 2016-04-17.
  35. ↑ Viber Media (23 April 2014). "Viber 10 - BlackBerry World". BlackBerry App World. Research In Motion (RIM). Retrieved 20 April 2016.
  36. ↑ "JAJAH.Mobile Web". Jajah.com.
  37. ↑ "Signaling Protocol". Archived from the original on 10 September 2015. Retrieved 8 November 2015.
  38. ↑ "Encryption Protocols". Archived from the original on 5 September 2015. Retrieved 8 November 2015.
  39. ↑ Michael Mimoso (29 July 2014). "New Signal App Brings Encrypted Calling to iPhone". Threatpost. Retrieved 27 January 2015.
  40. ↑ "Signal 2.0: Private messaging comes to the iPhone". whispersystems.org. Retrieved 3 March 2015.
  41. ↑ Open Whisper Systems (31 March 2016). "Signal – Private Messenger". Google Play. Google. Retrieved 3 April 2016.
  42. ↑ Open Whisper Systems (10 November 2015). "Signal - Private Messenger". App Store. Apple. Retrieved 11 November 2015.
  43. ↑ "WhatsApp Encryption Overview – Technical white paper" (PDF). WhatsApp Inc. 4 April 2016. Retrieved 9 April 2016.
  44. ↑ WhatsApp Inc. (n.d.). "WhatsApp for Android". WhatsApp.com. WhatsApp Inc. Retrieved 6 April 2016.
  45. ↑ WhatsApp Inc. (2 March 2016). "WhatsApp Messenger". Google Play. Google. Retrieved 4 March 2016.
  46. ↑ WhatsApp Inc. (3 March 2016). "WhatsApp Messenger". BlackBerry World. BlackBerry. Retrieved 12 April 2016.
  47. ↑ WhatsApp Inc. (2 April 2016). "WhatsApp Messenger". App Store. Apple. Retrieved 2 April 2016.
  48. ↑ WhatsApp Inc. (n.d.). "WhatsApp for Nokia S60". WhatsApp.com. WhatsApp Inc. Retrieved 12 April 2016.
  49. ↑ WhatsApp Inc. (n.d.). "WhatsApp for Nokia Series 40". WhatsApp.com. WhatsApp Inc. Retrieved 12 April 2016.
  50. ↑ "Pocket PC SIP Softphone". Counterpath.com.
  51. ↑ "Recommended Pocket PCs". Counterpath.com.
  52. ↑ http://www.mod-gadget.com/upptalk-app-updated-ipad/
  53. ↑ "yuilop - Free texts and SMS". Amazon. Retrieved 10 March 2014.
  54. ↑ "Asterisk Commercial Licensing". Digium. Retrieved 12 October 2013
This article is issued from Wikipedia - version of the Monday, April 25, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.