2.4.1 M2M connections
Machine-to-machine (M2M) connections occur when data is transferred from one machine or 'thing' to another over a network. Machines include sensors, robots, computers, and mobile devices. These M2M connections are often called the internet of things.
An example of M2M is a connected automobile that is signaling that a driver is almost home, which prompts the home network to adjust the home temperature and lighting.