In the world of telephony solutions, PRI stands for Primary Rate Interface, and SIP implies Session Initiation Protocol. A business can establish its voice communication system via PRI line or SIP trunk in India. Although deploying a PRI line means going with older technology, the call quality it delivers is still superior to what IP telephony offers. On the other hand, SIP brings new advantages of cost-effectiveness and simplified call management. This SIP trunk vs PRI infographic by Tata Tele Business Services reveals the USPs of each to help you make an informed choice for your organisation.