Linphone for smartphones and tablets

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Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.

Use Linphone for free, and enjoy its intuitive interface and advanced features with our free SIP service or with an existing SIP account.

Easy-to-use graphical interface :

  • Account creation assistant
  • Smart contact list, with address book synchronisation for smartphones
  • Call history
  • "Invite your friends" option
  • Remote provisioning from a QR Code or a URL

Advanced calling features :

  • HD video calls with video preview (H.264, H.265 and VP8 codecs supported)
  • Audio conference calls
  • Call transfer and multi-call management (pause and resume)
  • Call recording and replay (audio only)

Increased audio and video quality :

  • State-of-the-art adaptive jitter buffer algorithm
  • Innovative adaptive bitrate control
  • HD voice (Opus support) and echo cancellation
  • Call quality indicator and display of advanced call statistics

Enhanced Instant Messaging experience : 

  • One-to-one and multi-participant conversations
  • Intuitive message delivery status (IMDN)
  • Picture and file sharing
  • Multi-device support
  • Advanced IM notifications, with "reply to" and "mark as read" options

Secure communications : 

  • SIP TLS with state-of-the-art cypher algorithms
  • Audio and video encryption with SRTP and ZRTP
  • End-to-end encryption for 1-to-1 and group messaging

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