SIP.js

SIP.js is a software library that enables web applications to establish and manage real-time audio, video, and messaging communications over the internet. It uses the SIP (Session Initiation Protocol) standard, which is widely used in telephony and video conferencing, to connect callers, set up calls, and manage sessions smoothly. Essentially, SIP.js allows web browsers to act like phones or video chat devices, making it easier to add voice or video communication features to websites or applications without requiring users to install separate software.