READ TIME: 5 MINS. When comparing telecom services, such as cloud PBX (Private Branch Exchange, meaning a phone system that can communicate internally within your business and externally with your customers) and On-Site PBX (also referred to as “on premise,” “hosted,” or “on prem”), it can be tricky to understand which option is best for your business. In technology, there are always pros and cons of finding the right tools for your business, right? Cloud vs. On-site, should your PBX transition to the cloud?