SIP, which stands for Session Initiation Protocol, is a communication protocol widely used for establishing, modifying, and terminating multimedia sessions such as voice and video calls over the internet. In this comprehensive guide, we will delve into the world of SIP, exploring its key concepts, technicalities, and implementation in business communication. Whether you are new to SIP or seeking to enhance your understanding, this guide will equip you with valuable insights to maximize the benefits of SIP in your communication infrastructure.