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Linphone

Take full control of your communications with HD audio, video, and text messaging. Built for privacy-conscious users and developers who demand transparency, flexibility, and high-definition quality.

Communication & Messaging ›

Key Figures

Downloads

541K+

User Rating

2.8/5

Total Ratings

1K+

Publisher

Belledonne communications

Master Your Communications with SIP Freedom

The industry-standard open-source client for privacy-conscious professionals and developers who demand total control over their VoIP infrastructure.

Enterprise-Grade Privacy

Secure every conversation with SRTP and ZRTP end-to-end encryption. Protect your metadata and audio streams from prying eyes with audited, open-source transparency.

Total Protocol Flexibility

Connect to any SIP-compatible provider or private PBX. Fine-tune your experience with granular controls for codecs, transport standards, and network optimization.

FAQ

Frequently Asked Questions

Everything you need to know about Linphone

What is Linphone?

Linphone is an open-source Voice Over IP (VoIP) phone application. It provides free audio and video calls, along with text messaging, using internet connectivity.

Does Linphone support free calls and messaging?

Yes, Linphone provides free audio/video calls and text messaging. Users can communicate without cost over a WiFi or 3G/4G internet connection.

Does Linphone offer secure communication?

Yes, Linphone offers secure communication through various encryption options. Calls and messages can be end-to-end encrypted to protect user privacy.

Can users receive calls on Linphone even when the app is closed?

Yes, Linphone accounts are reachable at any time, even if the app is closed. This functionality is enabled through the use of push notifications.

What types of calls does Linphone support?

Linphone supports high-definition audio and video calls. It also facilitates audio conference calls with multiple participants and group video calls.

Can Linphone users share files and photos?

Yes, Linphone allows users to share pictures and files. This includes photos, videos, and documents directly within the messaging interface.

Is Linphone compatible with other VoIP services?

Yes, Linphone is compliant with a large number of SIP-compatible VoIP service providers. This allows users to connect with contacts on "classic" phone lines.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Linphone - Linphone app interface showing an encrypted video call on a smartphone — Linphone app interface showing an encrypted video call on a smartphone

Linphone - Linphone app interface showing an end-to-end encrypted VoIP call in progress — Linphone app interface showing an end-to-end encrypted VoIP call in progress

Linphone - Linphone app chat interface showing text messages and a voice message playback — Linphone app chat interface showing text messages and a voice message playback

Linphone - Linphone mobile app interface showing a secure chat conversation with a shared photo of a bag — Linphone mobile app interface showing a secure chat conversation with a shared photo of a bag

Linphone - A smartphone displaying a group video call on the Linphone app with six participants and an end-to-end encryption notification. — A smartphone displaying a group video call on the Linphone app with six participants and an end-to-end encryption notification.

Linphone - Linphone mobile app interface showing meeting details with a list of participants and a join meeting button — Linphone mobile app interface showing meeting details with a list of participants and a join meeting button

Linphone - Linphone mobile app safety check screen showing a security code exchange for encrypted communication. — Linphone mobile app safety check screen showing a security code exchange for encrypted communication.

Description

Linphone is an open source internet SIP phone or Voice Over IP phone (VoIP). Linphone is an open source app offering free audio/video calls and text messaging. With Linphone, you can be reachable at any time, even if the app is closed, with a WiFi or 3G/4G internet connection. Linphone key features: * high definition audio and video calls * audio conference calls with various participants * pictures and file sharing * Linphone accounts reachable at any time, even if the app is closed (thanks to push notifications) * secure communication (encryption options) * compliant with a large number of SIP-compatible VoIP service providers allowing to reach everyone that has a "classic" phone line. Linphone is available on the main mobile and desktop operating systems and offers various specific features for advanced users (codecs, transport standard, encryption options, DTMF...). For more information, see Linphone project website: www.linphone.org Note for developers and professionals: Linphone can be rebranded and customized to meet specific needs. Contact Belledonne Communications www.belledonne-communications.com for any specific development query.