Linphone

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 s 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 s (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. Belledonne Communications www.belledonne-communications.com for any specific development query.