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Secure communications

Leverage our long-term expertise on secure user authentication and end-to-end encryption.

All use cases

Linphone and its components are divers of innovation in many sectors. Read our white papers.

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Linphone

An open source SIP phone for voice/video calls and instant messaging (mobile and desktop)

Liblinphone

A high-level VoIP library implementing all SIP calling and IM features within a single API

Flexisip

A SIP server implementation with proxy, presence and conference modules

Mediastreamer2

A powerful, lightweight streaming engine for voice/video telephony applications

Belle-sip

A modern library implementing SIP transport, transaction and dialogue layers

oRTP

A C library implementing Real-Time Transport Protocol

bcg729

A fully portable C99 implementation of both an encoder and decoder for the G.729 A/B codec

VoIP tunnel

A VoIP anti-blocking solution to overcome VoIP blocking and firewall restrictions

LIME

End-to-end encryption module for instant messaging, implementing the Signal Protocol

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Menu technical corner

Linphone

An open source SIP phone for voice/video calls and instant messaging (mobile and desktop)

Liblinphone

A high-level VoIP library implementing all SIP calling and IM features within a single API

Flexisip

A SIP server implementation with proxy, presence and conference modules

Mediastreamer2

A powerful, lightweight streaming engine for voice/video telephony applications

Belle-sip

A modern library implementing SIP transport, transaction and dialogue layers

oRTP

A C library implementing Real-Time Transport Protocol

bcg729

A fully portable C99 implementation of both an encoder and decoder for the G.729 A/B codec

VoIP tunnel

A VoIP anti-blocking solution to overcome VoIP blocking and firewall restrictions

LIME

End-to-end encryption module for instant messaging, implementing the Signal Protocol

Menu Solutions

All use cases

Linphone and its components are divers of innovation in many sectors. Read our white papers.

Secure communications

Leverage our long-term expertise on secure user authentication and end-to-end encryption.

Main menu

  • Products
  • Solutions
  • Licensing & services
  • Technical corner
  • About us
  • News

Free SIP service


There are 1193543 users registered with this service.


Linphone.org hosts a free SIP service that allows users to make audio or video calls using SIP addresses via the domain sip.linphone.org. You can create your own sip address, for example "sip:john@sip.linphone.org" using the form below, and your friends can call you using this SIP address.

Technically, this service runs with a dual host, on a highly available, Flexisip proxy server deployment.



Create an account


(this will be your SIP username)

Manage your account

Please enter your username OR your phone number (depending on what you used when you created your account), and the associated password. If you use your phone number, you may have to follow the process to recover your password first.


Recover your password



All fields identified by an asterisk (*) are mandatory.
The data collected with this form are electronically stored by Belledonne Communications in order to process your request.
You can exercise your right of access to, correction of and deletion of your personal data, by visiting our Privacy policy page.

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