🚀 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 -

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

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

E2E test framework for tests with complex environment requirements.

Twilio C#/.NET Helper Library for .NET6+.

Rapida is an open-source, end-to-end voice AI orchestration platform for building real-time conversational voice agents with audio streaming, STT, TTS, VAD, multi-channel integration, agent state management, and observability.

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

MikoPBX — free open-source PBX for small business, built on Asterisk 22, PHP 8.4, and Phalcon 5. Deploy as ISO, Docker, LXC, or in the cloud.

:satellite: 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.

End-to-end platform for building voice first multimodal agents

Modern and flexible SIP/VoIP cli tool

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

T-one is a high-performance streaming ASR pipeline for Russian, specialized for the telephony domain.

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

IVOZ Provider - Multitenant solution for VoIP telephony providers

asyncio powered FreeSWITCH cluster control

RTP Tools

Battle proven FreeSWITCH Event Socket Protocol client implementation with Gevent

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

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

WebCall for Android - Web-Telephony P2P Messaging File-Exchange E2E-Encryption No-SIM

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.

Official Telnyx skills for AI coding agents

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

API server and Web GUI for FreeSwitch written in Golang and Angular

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

Easy to use bluetooth hands free telephony, with python