Linphone

Linphone
	Linphone running on Windows
Original author(s)	Belledonne Communications
Developer(s)	Linphone
Stable release(s)
Android
Android	4.5.6 / 8 November 2021
iOS	4.5.1 / 8 October 2021
Linux	5.2.4
macOS	5.2.4
Windows	5.2.4
Preview release(s)
Android
Android	4.7.0-alpha / 4 November 2021
iOS	4.4.0-beta / 4 January 2021
Linux	4.4.0-alpha / 20 October 2021
macOS	4.4.0-alpha / 20 October 2021
Windows	4.4.0-alpha / 20 October 2021
Repository	gitlab.linphone.org/BC/public/linphone-desktop.git ;
Written in	C, Java, C#, Python
Operating system	Linux, FreeBSD, Windows, Mac OS, iPhone, Android, Windows Phone
Size	8–17 MB
Available in	Multilingual, including English, Arabic, Dutch, French, German, Japanese, Russian and Traditional Chinese
Type	Voice over IP, instant messaging, videoconferencing
License	GPL-3.0-or-later or proprietary
Website	linphone.org

Linphone (contraction of Linux phone) is a free voice over IP softphone, SIP client and service. It may be used for audio and video direct calls and calls through any VoIP softswitch or IP-PBX. Linphone also provides the possibility to exchange instant messages. It has a simple multilanguage interface based on Qt for GUI and can also be run as a console-mode application on Linux.

Both SIP service and software could be used together, but also independently: it's possible to connect Linphone service with any SIP client (software or hardware), and to use Linphone software with any SIP service.

The softphone is currently developed by Belledonne Communications in France. Linphone was initially developed for Linux^[11]^[12] but now supports many additional platforms including Microsoft Windows, macOS, and mobile phones running Windows Phone,^[13] iOS^[14] or Android.^[15] It supports ZRTP for end-to-end encrypted voice and video communication.

Linphone is licensed under the GNU GPL-3.0-or-later and supports IPv6. Linphone can also be used behind network address translator (NAT), meaning it can run behind home routers. It is compatible with telephony by using an Internet telephony service provider (ITSP).

Features

Linphone hosts a free SIP service on its website.^[16]

The Linphone client provides access to following functionalities:^[17]

Multi-account work
Registration on any SIP-service and line status management
Contact list with status of other users
Conference call initiation
Combination of message history and call details
DTMF signals sending (SIP INFO / RFC 2833)
File sharing
Additional plugins

Open standards support

Protocols

SIP according to RFC 3261 (UDP, TCP and TLS)
SIP SIMPLE
NAT traversal by TURN and ICE
RTP/RTCP
Media-security: SRTP and ZRTP

Audio codecs

Audio codec support: Speex (narrow band and wideband), G.711 (μ-law, A-law), GSM, Opus, and iLBC (through an optional plugin)

Video codecs

Video codec support: MPEG-4, Theora, VP8 and H.264 (with a plugin based on x264), with resolutions from QCIF (176×144) to SVGA (800×600) provided that network bandwidth and CPU power are sufficient.^[18]

Gallery

One of initial version's interface of Linphone in Linux (GNOME)
Linphone running on HTC Desire
Linphone 4.1 working on Windows 8 (main screen)
Linphone 4.1 settings on Windows 8

References

^ "Linphone 4.5.6 on GitLab".
^ "Linphone 4.5.1 on GitLab".
^ ^a ^b ^c "Linphone 5.2.4 on GitLab". 11 April 2024. Retrieved 11 June 2024.
^ "Linphone 4.7.0-alpha on GitLab".
^ "Linphone 4.4.0-beta on GitLab".
^ ^a ^b ^c "Linphone 4.4.0-alpha on GitLab".
^ "Linphone". Archived from the original on 2016-01-13.
^ FreeBSD port of Linphone
^ Linphone.org » Linphone » Licensing Archived 2013-08-15 at the Wayback Machine
^ "Linphone: VOIP softphone - open source video sip phone, voip software". Archived from the original on 2017-12-11. Retrieved 2018-08-02.
^ "LINPHONE, SIP video phone client". Archived from the original on 8 October 2014. Retrieved 1 September 2014.
^ AndroidTapp.com: Linphone Video, Make Phone Calls over Phone’s Internet without using Minutes
^ Linphone
^ Ostatic.com: Blog: Bye Bye Skype, Top 3 Free Replacements Archived 2011-11-27 at the Wayback Machine
^ Linphone in the Google Play Store
^ "Free Sip service". Retrieved 20 March 2019.
^ "Features". Linphone. Retrieved 2019-02-03.
^ Linphone.org » Features Archived 2010-07-23 at the Wayback Machine

External links

Official website

[wikidata-a89139bbac4ae783f19fc4de192702889c83482a-v18-1] "Linphone 4.5.6 on GitLab".

[wikidata-dd589bc9c71788fc8541b3f5e4231f04206fd7b5-v18-2] "Linphone 4.5.1 on GitLab".

[wikidata-6a1df6cc6ed182a44bd0dea9d6332a334f59603d-v18-3] "Linphone 5.2.4 on GitLab". 11 April 2024. Retrieved 11 June 2024.

[wikidata-fec88e0bae9a982827064f1a5dcdc77618c5f43a-v18-4] "Linphone 4.7.0-alpha on GitLab".

[wikidata-8217931b02d0df703305530d2892ecf275306f93-v18-5] "Linphone 4.4.0-beta on GitLab".

[wikidata-065eeb209d5248831369e6b248624a3afb334ba4-v18-6] "Linphone 4.4.0-alpha on GitLab".

[7] "Linphone". Archived from the original on 2016-01-13.

[FreeBSD_Port_of_Linphone-8] FreeBSD port of Linphone

[9] Linphone.org » Linphone » Licensing Archived 2013-08-15 at the Wayback Machine

[10] "Linphone: VOIP softphone - open source video sip phone, voip software". Archived from the original on 2017-12-11. Retrieved 2018-08-02.

[11] "LINPHONE, SIP video phone client". Archived from the original on 8 October 2014. Retrieved 1 September 2014.

[12] AndroidTapp.com: Linphone Video, Make Phone Calls over Phone’s Internet without using Minutes

[13] Linphone

[14] Ostatic.com: Blog: Bye Bye Skype, Top 3 Free Replacements Archived 2011-11-27 at the Wayback Machine

[15] Linphone in the Google Play Store

[16] "Free Sip service". Retrieved 20 March 2019.

[17] "Features". Linphone. Retrieved 2019-02-03.

[features-18] Linphone.org » Features Archived 2010-07-23 at the Wayback Machine

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