b2bua

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

Go SIP UA library for client/b2bua

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

SIP Server Testing Framework: test interop between latest versions of opensips, kamailio, Sippy B2BUAs and rtpproxy

Voip for Micropython ESP32 with Interactive Voice Response

Baresip Applications Modules

Unified Communications System

Use your JioFiber landline from anywhere — outbound AND inbound — on any SIP softphone. Headless B2BUA that registers to the Jio IMS/JUICE core and re-presents the line as a plain SIP trunk for Asterisk. Solves inbound forking, AMR transcoding, and device whitelisting.

Vue 3 + Vite web softphone, WebRTC Peer to Peer, UI built with Naive UI and Pinia.

Sems Server with Docker Compose support

High-performance native SIP B2BUA server bridging JioFiber VoIP (Jio IMS) to any standard SIP softphone (Linphone, MicroSIP, Zoiper) over LAN or VPN.