You do not need to read or understand this page to use any Sopranica, Cheogram, JMP, or other project. For example, most people getting started with JMP on an Android device can install Cheogram Android, select "I need to sign up", tap the giant JMP logo, and follow the prompts.
However, some people feel the need to understand every piece the can see, can't see, or feel the presence of in some way. Some people want to know even if it makes things more confusing for starting out. This page is for you.
Generally speaking we talk about Sopranica, Cheogram, and JMP as different things, and they are. However the worker co-op MBOA has as its members most of the maintainers of these things and sponsors or otherwise pays for most of the infrastructure, etc. So MBOA is a company, the members/employees of that company do many things including maintain projects which are part of the umbrella open source project we call Sopranica. Some gratis gateway services, infrastructure, and a client app are distributed under sponsored infrastructure named Cheogram. JMP is the commercial product for everything telephony related. So JMP is a commercial VoIP and SMS gateway which acts as a plugin to the gratis noncommercial Cheogram gateway system, often interacted with using the flagship Cheogram Android app. All the software is freedomware (aka open source) as part of the Sopraneca group of projects.