ivr

A Chinese task oriented chatbot in IVR(Interactive Voice Response) domain, implement by rasa. This is a demo with toy dataset, more data should be added for performance.

网关服务：Sip与Rtc互通，实现Web，Android，iOS，小程序，SIP座机，PSTN电话，手机互通。

PHP AGI ( Asterisk Gateway Interface ) facade, with CDR ( Call Detail Record ), Call spool and schedule auto dial, Send and Receive Fax, Channel Variables, and Caller ID management

Production-ready code examples for Telnyx AI Communications Infrastructure — Voice AI, SMS, SIP, and IoT APIs

SMS, Fax, Voice Broadcasting and auto dialer Software, A unified communications open source autodialer developed over freeswitch communication engine and ICTCore communications framework

FreeSwitch library for DotNet

An introduction to the 46elks API with code examples

An automated testing framework for Interactive Voice Response (IVR) call flows

RapidPro is a cloud based SaaS allowing organizations to visually build scalable interactive messaging applications.

Open-source AI phone API for voice agents. Give Claude, Cursor, OpenClaw, or any LLM a real phone number — outbound/inbound calls, SMS, transcripts, MCP, DTMF/IVR. FastAPI + SignalWire + Deepgram. Self-hostable alternative to Twilio, Vapi, and Retell.

An open-source Python library for easy VoIP call integration using SIP and SDP protocols. Simplify real-time communication and audio handling in your applications.

Arke is a .NET IVR for the Asterisk ARI system build on .NET Core and AsterNET.ARI

Voicegain Enterprise Speech-to-Text Platform (API, Portal, etc.)

Voip for Micropython ESP32 with Interactive Voice Response

Voice-Powered IVR Chatbot with Autopilot

Rules Engine for Amazon Connect aims to deliver an engine sitting on top of Amazon Connect which has the capability to build a hyper-personalised IVR experience for customers.

FreeSWITCH API using with Python module

Distributed call queue system (ACD) for Asterisk 13+

Twilio ASR and Intent Realtime Dashboard

Easily build IVR systems (phone trees) with twilio and express