Jump to content

Comparison of VoIP software

From Wikipedia, the free encyclopedia

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, voice over IP 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 abilities.

Softphones are client devices for making and receiving voice and video calls over the IP network with the standard functions of most original telephones and usually allow integration with VoIP phones and USB phones instead of using 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 networking protocol but additional business telephone system (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 foreign exchange services (FXOs) and adapted telephony software which concurrently supports VoIP and public switched telephone network (PSTN) like Interactive Voice Response (IVR) systems, dial-in dictation, on-hold and call recording servers.

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

Desktop applications[edit]

Program Operating systems License Costs Protocols Codecs Encryption Max conference peers Other abilities Latest release
Blink Linux, macOS, Windows Mixed: free software versions under GNU GPLv3 + shareware versions under gplv3 with exception of including proprietary code macOS version proprietary on App Store, free version limited to sponsored SIP provider; Windows version proprietary; Linux version open source ICE, SIP, MSRP, RFB (VNC), XCAP Opus, speex, G.722, GSM, iLBC, PCMU, PCMA TLS, SRTP and ZRTP on all versions, OTR/SMP on Linux and macOS only[2] No limit IM, file transfer, desktop sharing, multi-party conference, wideband Blink Qt
Battle.net macOS, Android, iOS, Windows Proprietary Free Un­known Un­known Un­known Un­known IM, multi-party conference Un­known
Discord macOS, Android, iOS, Windows, Linux Proprietary Free, Premium "Nitro" Subscription for Additional Features. RTP, UDP, WS, HTTPS Opus TLS 5000 soft limit for voice calls,[3] 25 hard limit for video[4] IM, file sharing, in-game overlay 59746; April 24, 2020; 4 years ago (2020-04-24)
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; 15 years ago (2009)
FaceTime iOS, macOS Proprietary Free SIP, IETF, Signaling protocol for VoIP, STUN, TURN and ICE| IETF, technologies for traversing firewalls and NAT H.264 Video, AAC-ELD Audio, H.263 and VP8 RTP, SRTP IETF|standards for delivering real-time and encrypted media streams for VoIP. 20 Video, voice, conferencing, with additional tools available as "Services".
IBM Sametime Linux, macOS, 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; May 8, 2011; 13 years ago (2011-05-08)
Jami Android, FreeBSD, iOS, iPhone, Linux, Microsoft Windows, OS X[7] GPL-3.0-or-later Free SIP, RTP, STUN per account, SRV, DHT, P2P 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 No limit Blockchain ID-management, Gnome-KDE client, address book, multiple accounts, unlimited call number, call transfer, call hold-unhold, call recording, multi-way conferencing
iOS3.28 / December 17, 2021; 2 years ago (2021-12-17)[8]
Android20211210-01 / December 21, 2021; 2 years ago (2021-12-21)[9]
Windows202112221025 / December 22, 2021; 2 years ago (2021-12-22) [10]
macOS2.10 / December 16, 2021; 2 years ago (2021-12-16)[11]
Jitsi Linux, macOS, Windows (all java supported). Experimental Android builds are also available.[12] Apache-2.0 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, OTR, TLS Un­known Text messaging, audio-video telephony, IPv6 (often broken,[13] P2P not supported[14]), call recording, 64-bit 2.10 (build.5550) (February 5, 2017; 7 years ago (2017-02-05)) [±]
Linphone Linux, Windows, macOS, Android, iPhone, BlackBerry GPL-3.0-or-later 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, Secure Encryption, User own Encryption via Provided API https://gitlab.linphone.org/BC/public/linphone-desktop 4.2.5; June 25, 2020; 3 years ago (2020-06-25), provides daily snapshots via http://www.linphone.org/snapshots
Messages macOS Proprietary Free, only macOS and iOS SIP AIM ICQ XMPP H263, H264 Un­known Un­known Integrated, PBX independent 7.0; July 25, 2012; 11 years ago (2012-07-25)
MicroSIP Windows GPL-2.0-or-later 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 3.20.7 (25 August 2021; 2 years ago (2021-08-25)) [±][15]
Movim Any, Progressive web application GPL-2.0-or-later Free XMPP, STUN, TURN Depending the web-browser TLS 2 IM, microblogging, social-network, OMEMO encryption, screen-sharing, file transfer 2024-06-21
Mumble Linux, macOS, iOS, Windows, Android New BSD license Free ICE CELT, Speex, Opus TLS and OCB-AES128 No limit (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 1.4.287; September 14, 2022; 21 months ago (2022-09-14)
Nymgo Windows, Android, iOS Proprietary Free SIP, RTP and RTCP Un­known Yes No limit Address Book integration, Call recording/export, Mute, On Hold, Caller ID definition 4.2.9; March 2013; 11 years ago (2013-03)
Phoner Windows Proprietary Free SIP, TAPI, CAPI G.711a, G.711u, G.722, G.726, G.729, GSM, iLBC, speex, Opus TLS, SRTP, ZRTP 8 Conferencing, call redirection, call recording 3.23 (5 March 2021; 3 years ago (2021-03-05)) [±][16]
PhonerLite Windows Proprietary Free SIP G.711a, G.711u, G.722, G.726, G.729, GSM, iLBC, speex, Opus TLS, SRTP, ZRTP 8 Conferencing, call redirection, call recording 3.20 (7 August 2023; 10 months ago (2023-08-07)) [±][17]
Roger Wilco GameSpy Windows Proprietary ? Proprietary ? ? Un­known ? 2001; 23 years ago (2001)
Signal Linux, macOS, Windows, Android, iPhone GPLv3 clients and AGPLv3 server Free RingRTC (WebRTC over Signal protocol[18]) Opus[18] ? Un­known Signal also allows users to send text messages, files, voice notes, pictures, GIFs, and video messages over a Wi-Fi or data connection to other Signal users on iOS, Android and a desktop app. The app also supports group messaging, read receipts and typing indicators, both of which can be disabled.
Android7.8.1[19] Edit this on Wikidata / 16 May 2024
iOS7.11[20] Edit this on Wikidata / 18 May 2024
Desktop7.9.0[21] Edit this on Wikidata / 15 May 2024
Skype Linux(with limited functionality),[22] macOS, Windows 2000-XP-Vista-7-Mobile (unsupported), BREW, Windows Phone, Android, iPhone, PSP Proprietary Free Proprietary P2P protocol [a] SILK TLS 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, UWP15.119.201.0 / 6 May 2024; 48 days ago (2024-05-06)[23]
Windows, desktop8.119.0.201 / 6 May 2024; 48 days ago (2024-05-06)[23]
macOS8.119.0.201 / 6 May 2024; 48 days ago (2024-05-06)[23]
Linux8.119.0.201 / 6 May 2024; 48 days ago (2024-05-06)[23]
Android8.119.0.202 / 6 May 2024; 48 days ago (2024-05-06)[24]
iOS8.119.0.201 / 6 May 2024; 48 days ago (2024-05-06)[25] (iPhone and iPad)
Steam Chat Web, Phones, Desktop Proprietary WebRTC
TeamSpeak Linux, Windows, macOS, FreeBSD, Android, iOS Proprietary Free Un­known CELT, Speex (both until server version 3.5.0), Opus[26] Yes 32 unlicensed, 512 with Non-Profit License (available until September 2018), up to 1024 (Gamer 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 3.5.5; November 4, 2020; 3 years ago (2020-11-04)
TeamTalk Linux, Windows, macOS, Android, iOS, Raspbian Proprietary Free Proprietary Opus, Speex, VP8 No 1000 Video, file sharing, desktop sharing, stream media files (MP3, AVI) 5.3.3; November 2018; 5 years ago (2018-11)
TeamViewer Linux, Windows, macOS, iOS, Android[27] 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)[28]
macOS15.29.4 / 26 April 2022; 2 years ago (2022-04-26)[29]
Linux15.29.4 / 26 April 2022; 2 years ago (2022-04-26)[30]
Android15.29.96 / 26 April 2022; 2 years ago (2022-04-26)[31]
iOS15.29.1 / 4 May 2022; 2 years ago (2022-05-04)[32]
Windows (UWP app)15.100.209759[33]
Telephone macOS 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)
Tuenti Android, iPhone, Windows Phone Proprietary Free WebRTC, SIP, XMPP iLBC, Opus Yes Un­known 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-2.0-or-later 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 macOS, Windows, iOS, Android Proprietary Free Un­known Un­known No 8 Conferencing, chat, text-to-speech 3.0.8
Viber Linux,[b] macOS,[b] Windows,[b] Android, Bada, BlackBerry OS, iOS, Series 40, Symbian, Windows Phone Proprietary ? Un­known Un­known Yes[36] 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[37] Edit this on Wikidata / 2 July 2023; 11 months ago (2 July 2023)
iOS20.4.0[38] Edit this on Wikidata / 4 July 2023; 11 months ago (4 July 2023)
Windows20.2.0[39] Edit this on Wikidata / 12 June 2023; 12 months ago (12 June 2023)
macOS20.2.0[39] Edit this on Wikidata / 12 June 2023; 12 months ago (12 June 2023)
Linux20.3.0.1[40] Edit this on Wikidata / 14 June 2023; 12 months ago (14 June 2023)
Wire Linux, Windows, macOS, iOS, Android, Web GPLv3 not free ? Audio: Opus

Video: VP8

DTLS, SRTP[41] 10[42] End-to-end encryption by default for everything, instant messaging, video call, video group call, file sharing, GIF sharing, push to talk, edit message, delete message (on both side), timed messages, doodling, identity verification, screen sharing (desktop only) ?
Yate Client Linux, macOS, 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, maybe ZRTP? Un­known 6.0.0; September 2017; 6 years ago (2017-09)
Zfone Linux, macOS, Windows Proprietary (with viewable source) Includes time bomb provision SIP, RTP Un­known SRTP, ZRTP Un­known Beta 2008-09-04 (Linux 0.9.224), (macOS 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. ^ a b c Viber must be first installed on a mobile phone to function on a desktop operating system[34][35]

Mobile phones[edit]

For mobile VoIP clients:

Program Operating systems License Open source Protocols Codecs Encryption Other abilities Latest release
Jami iOS, Android[43] GPLv3 Yes SIP Video: H264, VP8, MP4V, H263, Audio: Opus 48000 hz, G722 PCMA, PCMU SRTP, SIP over TLS ? Version 202103261733 March 2021; 3 years ago (2021-03)
Line Android, iOS Proprietary No ? ? ? ?
Signal iOS, Android GPLv3 Yes WebRTC[44] Opus[44] TLS, Signal Protocol[44] End-to-end encryption by default for everything. CallKit and location privacy,[45] one-to-one and group messaging, video calling,[45] image/video sharing, timed messages, identity verification, screenshot blocking. Android only: SMS/MMS messaging, doodling,[46] GIF sharing.[47] Android 5.2.3 / 15 September 2023

iOS 6.41.1 / 15 September 2023 Desktop 1.33.4 / 13 September 2023

Sipdroid Android GPL Yes SIP ? ? Uses Wi-Fi, 3G or EDGE 2.7
Tango iOS, Android, Microsoft Windows, macOS, Windows Phone Proprietary, freeware ? ? ? ? VoIP, Wi-Fi out & in, SMS over IP, call-through & call-back, instant messaging, videoconferencing ?
WhatsApp

Android, BlackBerry, iOS, Symbian, Windows Phone

Proprietary, freeware No ? ? ECDH, SRTP[48] VoIP and instant messaging over Wi-Fi or a data connection.
iOS24.6.77[49] Edit this on Wikidata / March 25, 2024; 2 months ago (March 25, 2024)
Android2.24.6.78[50] Edit this on Wikidata / March 25, 2024; 2 months ago (March 25, 2024)
Windows2.2411.4.0[51] Edit this on Wikidata / March 25, 2024; 2 months ago (March 25, 2024)
macOS2.24.5.76[52] Edit this on Wikidata / March 14, 2024; 3 months ago (March 14, 2024)

Frameworks and libraries[edit]

Program Operating systems License Protocols, based on, compatible with Encryption Other abilities Key and target markets Latest release
Telepathy, Farstream Linux, macOS, Windows LGPL SIP, XMPP (Jingle), ICE (STUN/TURN), UPnP No Multi-user A/V conferencing, IM, collaborative applications Mobile devices (Maemo, Meego), Linux desktop or embedded spec 0.27.2; September 24, 2013; 10 years ago (2013-09-24)
OPAL Windows, Linux (including embedded variants), macOS 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; 9 years ago (2014-10-10)
GNU oSIP Linux, Windows, macOS, 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; 10 years ago (2013-12-18)

Server software[edit]

Name Operating systems License Protocols Encryption Notable features Target markets Latest release
3CX Phone System Windows, Linux Proprietary SIP TLS, SRTP VoIP/VideoOverIP calls and conferencing, voicemail and instant messaging < 50,000 users 18.2; December 8, 2021; 2 years ago (2021-12-08)
AskoziaPBX Standalone program (Linux-based) Proprietary SIP, H.323, IAX, SCCP No ISDN, voicemail, conferencing, MOH, ACD, IVR, call forwarding, call recording SMEs up to 50 users 5.4; September 2, 2017; 6 years ago (2017-09-02)
Asterisk PBX Linux, BSD, macOS, Solaris GPL-2.0+, optional: Proprietary[53] SIP, H.323, IAX, MGCP, VoFR, XMPP, Google Talk, TDM TLS, SRTP VoIP gateway, voicemail, basic accounting (expandable with ODBC-compliant database), billing, conferencing, hot desking, IVR trees with conditional logic, call waiting, automated call distribution Enthusiasts, developers, enterprise users (capacity dependent on server design, scalable across multiple servers) 21.3.1 (17 May 2024; 37 days ago (2024-05-17)[54])

20.5.0 LTS (18 October 2023; 8 months ago (2023-10-18)[55])
19.8.1 (7 July 2023; 11 months ago (2023-07-07)[56])
18.20.0 LTS (18 October 2023; 8 months ago (2023-10-18)[57])


Brekeke PBX Linux, Windows Server 2016 and Server 2019 Proprietary SIP TLS, SRTP VoIP/VideoOverIP calls and conferencing, voicemail Hosted service providers, Mid-large enterprise 3.12.2.2; January 11, 2022; 2 years ago (2022-01-11)
CommuniGate Pro Linux, BSD, macOS, Windows, Solaris, HP-UX, AIX Proprietary SIP, XIMSS, XMPP, WebRTC SSL, TLS, SRTP SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM Mobile network operators, ISPs, SaaS providers 6.2.14; August 16, 2019; 4 years ago (2019-08-16)
Dial Gate VoIP Softswitch Linux, Windows Proprietary SIP TLS, SRTP Billing server, real-time account and line monitoring, web portal Softswitch users, service providers 4.3; June 1, 2014; 10 years ago (2014-06-01)
Dial-Office IP-PBX Linux, Windows Proprietary SIP TLS, SRTP Unified communications, conference calls, remote worker support and voicemail Small businesses, Mid-large enterprises 4.1; December 2013; 10 years ago (2013-12)
Elastix Linux Proprietary SIP, IAX, H.323, XMPP TLS, SRTP Unified communication server that also supports chat, mail and fax. Capacity dependent on server design, scalable across multiple servers 5.0.0; December 7, 2016; 7 years ago (2016-12-07)
FreeSWITCH Linux, BSD, macOS, 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; 6 months ago (2023-12-22)[58]) [±]
FreePBX Linux, BSD, Solaris GPL SIP, IAX, H.323, XMPP TLS, SRTP Complete PABX Service, based on Asterisk and PHP 5.6; provides a full 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) 14.0; August 2017; 6 years ago (2017-08)
GNU Gatekeeper Linux, FreeBSD, macOS, Windows XP-2000-Vista-7 GPL H.323 H.235 H.460.18 firewall traversal, routing, accounting video conferencing, VoIP carriers large and small 3.7; August 15, 2014; 9 years ago (2014-08-15)
HERO Hosted PBX Linux, 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; December 2013; 10 years ago (2013-12)
Murmur Linux, BSD, macOS, 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) 1.2.17; September 24, 2016; 7 years ago (2016-09-24)
Kamailio, OpenSIPS (formerly named OpenSER) Linux, BSD, Solaris GPL SIP, XMPP TLS, SRTP SIP registrar-proxy, authentication, Diameter, RADIUS, ENUM, least-cost-routing, many others SIP Service Providers 5.2.8; October 2020; 3 years ago (2020-10)
SIP Express Router (SER) Linux, BSD, Solaris GPL SIP No SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM, 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; 9 years ago (2014-07)
vzRoom Windows Proprietary SIP SSL, TLS, AES Instant messaging-chat, VoIP, video, sharing (desktop, video, file), whiteboard, scheduler, recording Individual to small and medium enterprise (2-1,000 users) 0.8.8.735; November 2010; 13 years ago (2010-11)
Yate BSD, Linux, macOS, 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 postpaid cards Deployed on home servers and large networks with millions of users 6.3; February 2021; 3 years ago (2021-02)

Secure VoIP software[edit]

VoIP software with client-to-client encryption[edit]

The following table is an overview of those VoIP clients which (can) provide end-to-end encryption.

Client name Development status Open source client End-to-end authentication[a] Encryption protocols Forward secrecy Multiple encryption Encrypted group calling Proxy, Tor
ZRTP ECDH DTLS SRTP
FaceTime Active No[59] No[59] ? ? ? ? Yes[59] ? No No
Jami Active Yes Yes No ? Yes Yes Yes ? Yes ?
Jitsi[b] Active Yes Yes[59] Yes No Yes Yes Yes[59] Yes Yes ?
Line[60][61] Active No ? ? ? ? ? ? ? No[60] No
Linphone[b] Active Yes Yes Yes ? Yes Yes Yes Yes ? No
Signal Active Yes Yes[59] No Yes No Yes Yes[59] Yes Yes Depends[62]
Skype
(opt-in per conversation,
one pair of devices per conversation)[63]
Active No Yes[64] No No No Yes[65] ? ? No No
Telegram Active Yes Yes[66] No No No No Yes ? No No
Threema Active Partially[c][67] Yes[68] No Yes[68] Yes[68] Yes[68] Partially[d][68] Yes No No
Viber[36] Active No ? ? ? ? ? ? ? ? No
WhatsApp Active Partially[c][69] Yes[69] No Yes[69] No Yes[69] Yes[69] Yes[69] Yes[69] No
Wire Active Yes Yes[70] No ? Yes[41] Yes[41] Yes[71] Yes Yes No
Zfone Abandonware Viewable source[72] Yes Yes Optional[73] ? Yes[74] Yes Yes ? ?

VoIP software with client-to-server encryption[edit]

The following table is an overview of those VoIP clients which (normally) provide client-to-server encryption.

Client name Encryption protocols
Skype[59] A custom protocol
Notes
  1. ^ End-to-end authentication protects communications from man-in-the-middle attacks by the service provider.
  2. ^ a b Only if the user has registered with a compatible SIP provider. Some SIP providers do not support certain encryption protocols.
  3. ^ a b Only the encryption related source code is open.
  4. ^ Only on the network connection, not on the end-to-end layer.

See also[edit]

References[edit]

  1. ^ a b "Skype Connect..." skype.com. Microsoft Corporation Inc. Archived from the original on 2014-11-11. Retrieved 15 November 2014.
  2. ^ "Download Blink". Blink Project's Website. 14 January 2016. Retrieved 22 June 2016.
  3. ^ "Discord on Twitter". Twitter. Retrieved 2016-12-29.
  4. ^ "Wave Hello to Server Video". Retrieved 2020-06-21.
  5. ^ Eyeball Chat 3.2 Features Archived 2009-03-21 at the Wayback Machine. EyeballlChat.com.
  6. ^ "Telephony with Lotus Sametime software". IBM.com. Retrieved 2010-02-16
  7. ^ "News". Ring. 2018-07-25. Archived from the original on 2018-12-26. Retrieved 2018-12-01.
  8. ^ "‎Jami". App Store.
  9. ^ "Jami - Apps on Google Play". play.google.com.
  10. ^ "Index of /windows". dl.ring.cx.
  11. ^ "‎Jami". Mac App Store.
  12. ^ "Jitsi (SIP Communicator) Android — Nightly Builds Index". Jitsi.org. Archived from the original on 2014-11-29. Retrieved 2014-11-15.
  13. ^ Interview with Emil Ivov, Deploy360 blog
  14. ^ "[#JITSI-1166] P2P IPv6 calls still do not work with explicit IPv6 addresses, no matter if brackets are used — Java.net JIRA". Java.net. Archived from the original on 2014-02-21. Retrieved 2014-02-13.
  15. ^ Release history on MicroSIP download page
  16. ^ Release history on Phoner download page
  17. ^ Changelog on PhonerLite download page
  18. ^ a b "Video calls for Signal now in public beta". Signal. 2017-03-13. Retrieved 2020-03-02.
  19. ^ "Release v7.8.1 · signalapp/Signal-Android". 16 May 2024. Retrieved 19 May 2024.
  20. ^ "Release 7.11 · signalapp/Signal-iOS". 18 May 2024. Retrieved 19 May 2024.
  21. ^ "Release v7.9.0 · signalapp/Signal-Desktop". 15 May 2024. Retrieved 19 May 2024.
  22. ^ "Microsoft to retire Skype Linux app on July 1". 9 June 2017.
  23. ^ a b c d "Release Notes for Skype for Windows, Mac and Linux". Skype Support.
  24. ^ "Release Notes for Skype on Mobile". Skype Support.
  25. ^ "Skype for iPhone". App Store. Retrieved 2024-05-20.
  26. ^ "New TeamSpeak3 Client and Server released today". TeamSpeak Systems GmbH. Retrieved 2015-08-04.
  27. ^ "TeamViewer overview". GetApp.
  28. ^ "Windows v15.29.4 - Teamviewer Support". TeamViewer. 5 May 2022.
  29. ^ "macOS v15.29.4 - Teamviewer Support". TeamViewer. 5 May 2022.
  30. ^ "Linux v15.29.4 - Teamviewer Support". TeamViewer. 5 May 2022.
  31. ^ "Android Host v15.29.96 - Teamviewer Support". Retrieved 5 May 2022.
  32. ^ "TeamViewer: Remote Control". App Store. Apple. Retrieved 5 May 2022.
  33. ^ "TeamViewer: Remote Control". Windows Store. Microsoft. Retrieved 19 November 2019.
  34. ^ 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.
  35. ^ Viber Unveils Desktop App
  36. ^ a b Lunden, Ingrid (19 April 2016). "Viber adds end-to-end encryption and hidden chats as the messaging app privacy wave grows". TechCrunch. AOL Inc. Retrieved 12 July 2016.
  37. ^ "Android: Viber - Safe Chats And Calls 20.4.3.0". 2 July 2023. Retrieved 7 July 2023.
  38. ^ "iOS: Version History 20.4.0 Jul 4, 2023". 4 July 2023. Retrieved 7 July 2023.
  39. ^ a b "Viber for MacV 20.2.0". 12 June 2023. Retrieved 7 July 2023.
  40. ^ "viber.rpm". 14 June 2023. Retrieved 7 July 2023.
  41. ^ a b c "Wire Security Whitepaper". Wire Swiss GmbH. Retrieved 13 April 2016.[permanent dead link]
  42. ^ "Wire on Twitter". Twitter. Retrieved 2017-02-28.
  43. ^ [1] Jami downloads
  44. ^ a b c Marlinspike, Moxie (14 February 2017). "Video calls for Signal now in public beta". Open Whisper Systems. Retrieved 22 March 2017.
  45. ^ a b Marlinspike, Moxie (13 March 2017). "Video calls for Signal out of beta". Open Whisper Systems. Retrieved 22 March 2017.
  46. ^ Marlinspike, Moxie (21 December 2016). "Doodles, stickers, and censorship circumvention for Signal Android". Open Whisper Systems. Retrieved 22 March 2017.
  47. ^ Marlinspike, Moxie (1 November 2016). "Signal and GIPHY". Open Whisper Systems. Retrieved 22 March 2017.
  48. ^ "WhatsApp Encryption Overview – Technical white paper" (PDF). WhatsApp Inc. 4 April 2016. Retrieved 9 April 2016.
  49. ^ "iOS: Version History 23.19.0; Sep 20, 2023". 25 March 2024. Retrieved 29 March 2024.
  50. ^ "WhatsApp apk mirror repo". 29 March 2024. Retrieved 29 March 2024.
  51. ^ "WhatsApp Win Uptodown Repo". 25 March 2024. Retrieved 29 March 2024.
  52. ^ "mac:Version History 2.2338.12; Sep 22, 2023". 14 March 2024. Retrieved 29 March 2024.
  53. ^ "Licensing". Asterisk. Archived from the original on January 17, 2021. Retrieved February 18, 2022.
  54. ^ "ChangeLog-21-current". Retrieved 22 May 2024.
  55. ^ "ChangeLog-20-current". Retrieved 27 Oct 2023.
  56. ^ "ChangeLog-19-current". Retrieved 27 Oct 2023.
  57. ^ "ChangeLog-18-current". Retrieved 27 Oct 2023.
  58. ^ "Releases - signalwire/freeswitch". Retrieved 4 March 2024 – via GitHub.
  59. ^ a b c d e f g h "Secure Messaging Scorecard. Which apps and tools actually keep your messages safe?". Electronic Frontier Foundation. 4 November 2014. Retrieved 11 July 2016.
  60. ^ a b ""Letter Sealing" End-to-End Encryption Indicator Icon Introduced to LINE Messaging App". Line Corporation. 10 August 2016. Retrieved 29 September 2016.
  61. ^ Shin, Ki Bin (11 August 2016). "The next step for even safer messaging: Letter Sealing". Line Corporation. Archived from the original on 2 October 2016. Retrieved 30 September 2016.
  62. ^ Marlinspike, Moxie (13 March 2017). "Video calls for Signal out of beta". Open Whisper Systems. Retrieved 30 March 2017.
  63. ^ "What are Skype Private Conversations?". Skype. Microsoft. Retrieved 24 May 2020. Note: Private conversations can only be accessed on one device at a time.
  64. ^ "What are Skype Private Conversations? --(private conversations white paper)--> Skype Private Conversation Technical white paper". Microsoft. Retrieved 24 May 2020. Users can verify the security of their conversations by checking the key setup between two users.
  65. ^ "What are Skype Private Conversations? --(private conversations white paper)--> Skype Private Conversation Technical white paper". Microsoft. Retrieved 24 May 2020. Caller encrypts the SRTP using the generated encryption key, which can only be decrypted by the callee. After the call is setup, the media packets are encrypted using the SRTP keys.
  66. ^ "Voice Calls: Secure, Crystal-Clear, AI-Powered". Telegram. 30 March 2017. Retrieved 30 March 2017.
  67. ^ "Where can I find Threema's source code?". threema.ch. Threema. n.d. Retrieved 30 October 2017.
  68. ^ a b c d e "Threema cryptography whitepaper" (PDF). threema.ch. Threema. n.d. Retrieved 30 October 2017.
  69. ^ a b c d e f g "WhatsApp Encryption Overview – Technical white paper" (PDF). WhatsApp Inc. 4 April 2016. Retrieved 5 April 2016.
  70. ^ "A major upgrade to calling". Medium. Wire Swiss GmbH. 14 March 2017. Retrieved 14 March 2017.
  71. ^ "Security & Privacy". Wire. Retrieved 19 January 2020. New encryption keys are used for each message, so a compromised key has minimal impact.
  72. ^ "Is Zfone open source?". zfoneproject.com. Zfone. 2006. Retrieved 26 August 2016.
  73. ^ "Do you support Elliptic Curve Diffie-Hellman?". zfoneproject.com. Zfone. 2006. Retrieved 26 August 2016.
  74. ^ "Why do we need ZRTP if we already have SRTP? Isn't SRTP good enough?". zfoneproject.com. Zfone. 2006. Retrieved 26 August 2016.