Businesses are searching for scalable and affordable communication solutions in the current digital era. Two famous solutions among the many others are PRI and SIP Trunking uses the internet (VoIP) for voice communication, offering flexibility, scalability, and cost savings. In contrast, PRI (Primary Rate Interface) uses physical lines (T1/E1 circuits) and is more traditional, often limited by location and number of lines. SIP is ideal for modern, cloud-based systems, while PRI suits setups needing reliable, fixed-line connections.