The internet service provider (ISP) takes care of the connection from the outside world to your office space. They get you connected to the internet, and their services stop there. With that alone, you can connect to the internet but you won’t have full connectivity throughout your office. Meter then takes over to make sure you have full wireless coverage throughout your space by installing our hardware.
Think of the ISP as the highway to go between cities, but Meter as the surface-streets that are within a city. Without the ISP you can’t move between cities, but without Meter you can’t move within the city.