telephony

🚀 The open-source alternative to Twilio

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.

Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms -

📱 [Android Library] Get device information in a super easy way.

Baresip is a modular SIP User-Agent with audio and video support

Twilio C#/.NET Helper Library for .NET Framework 3.5+ and supported .NET Core versions

E2E test framework for tests with complex environment requirements.

A Java library for communicating with the Twilio REST API and generating TwiML.

Add Vonage functionality such as SMS and voice calling to your Laravel app with this Laravel Service Provider.

Free, easy to setup PBX for small business based on Asterisk 16 core

📡 A curated list of awesome Real Time Communications resources

An open source Session Border Controller, The SBC you dream about 🌟 LibreSBC will help you save thousands of dollars.

A Fork from http://git.freeswitch.org/git/freeswitch-contrib/tree/dvarnes/java/esl-client

asyncio powered FreeSWITCH cluster control

Modern and flexible SIP/VoIP cli tool

IVOZ Provider - Multitenant solution for VoIP telephony providers

RTP Tools

The telephone, a supernatural instrument before whose miracles we used to stand amazed, and which we now employ without giving it a thought, to summon our tailor or order an ice cream. --M.Proust

Kalbi - Golang Session Initiated Protocol Framework

Battle proven FreeSWITCH Event Socket Protocol client implementation with Gevent