🚀 An open-source alternative to Twilio.

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

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

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.

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

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

IVOZ Provider - Multitenant solution for VoIP telephony providers

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

📡 A curated list of awesome Real Time Communications resources

Battle proven FreeSWITCH Event Socket Protocol client implementation with Gevent

Simple and fast viewer for Asterisk CDRs and Recordings (Mod)

RTP Tools

Pàdé (Yoruba word for Meet) is a browser extension (Chrome/Edge) based unified communications desktop client for Openfire.

Multi-Protocol Webphone

Easy to use bluetooth hands free telephony, with python

FreePhone es un proyecto de investigación sobre privacidad en dispositivos móviles. Con este repositorio pretendemos liberar toda la experiencia acumulada durante la creación de un smartphone casero.

Kalbi - Golang Session Initiated Protocol Framework

The ITU-T Software Tool Library (G.191)

An introduction to the 46elks API with code examples

A python-based automated call attendant, call blocker, and voice messaging system running on a Raspberry Pi. Screens callers and block robocalls and scams with a low-cost Raspberry Pi and modem.

Captcha for phone calls

.Net FreeSwitch library

Managed library for TAPI development with .NET

FreePBX container (Asterisk 16; OpenPBX 15 with Backup and IVR modules installed)

Flutter plugin for telephony features like query device sms directory, listen for incoming messages, retrieve various network parameters, etc.