B2C - Business to consumer. Used to describe businesses or solutions that are aimed at consumers. For example, a pizza service is typically aimed at individuals.
B2B - Business to business. Used to describe businesses or solutions that are c level executive list aimed at companies. For example, a mass messaging service via SMS,
Android Messages - is the application that must be downloaded on an Android to be compatible with RCS. Additionally, the phone must have the service activated with the operator.
IOS . Mobile operating system designed by Apple.
Bot. Comes from the word ro-bot. It is typically used to denote programs that execute small parts of a process.
Chatbot. A bot that can "chat" with a customer, via menus, using natural language understanding or artificial intelligence.
NLU - natural language understanding. It refers to a bot's ability to understand a person's normal language in such a way that it can carry on a conversation in the same way as a human.