Awesome

Meshenger

Direct voice- and video phone calls. No need for accounts or access to the Internet. Just scan each others QR-Code that will contain the contacts IP address. This works at home or company networks but also in many off-the-grid networks such as community mesh networks.

Features:

• voice and video calls
• encrypted communication
• no accounts, no registration, no adds
• add custom addresses to reach contacts

Limitations:

• no calls through firewalls / NAT borders
• IP address change requires manual contact update

Download

<img src="docs/fdroid.png" alt="Get it on F-Droid" height="90"> <img src="docs/apk.png" alt="Get it on GitHub" height="90"> <img src="docs/gplay.png" alt="Get it on Google Play" height="90">

Screenshots

<img src="graphical-assets/phone-screenshots/logo_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/hello_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/qrcode_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/contacts_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/ringing_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/video_call_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/settings_4.0.4.png" width="170"> <img src="graphical-assets/phone-screenshots/address_management_4.0.4.png" width="170">

Translations

Visit weblate.org to contribute translations. An alternative is to directly translate the values in strings.xml and then to create a pull request or send it via Email.

Documentation

Meshenger connects to IP addresses in a true P2P fashion. Contacts are shared via QR-Code. They contain a name, a public key and a list of MAC/IPv4/IPv6 addresses or domain names. By default, only a single MAC address is transferred and used to create an IPv6 link local address (among others) to establish a connection. This does not even need a DHCP server. The exchanged public key is used to authenticate/encrypt signaling data to establish a WebRTC session that can transmit voice and video.

Details can be found in the Documentation or in the FAQ.

Similar Projects

This list only contains Open Source projects.

• linphone - many features, uses SIP, can use IP addresses, but not easy to use
• Keet - many features, uses a DHT, Bitcoin payments (might not be Open Source)
• Briar - text messages only, for the Internet the Tor network is used
• Jami - many features, but might not work in mesh or local networks
• Berty - text messages only, uses Bluetooth LE
• Qaul - many features, interlinked P2P mesh via BLE, Wifi & Internet-overlay