If you look out, the city is filled with digital communication.
3G would be an example. Users can transmit information. However, wirless is susceptible to interference, measured in signal to noise ratio.
This type of communication uses 1s and 0s to encode information
And when you make calls determined by talk time, there will be interconnection fees included. You will need to pay this as a subscriber to a carrier.
How does my phone get cellular data?
Your phone's data is provided by wireless carriers. Your phone has to go through activation for cellular data, this will also come with an access fee every month.
You can also use prepaid wireless to pay for your service in advance.
To the city...
Here we go again!
In an area of no service you may enter roaming mode, which still adds to airtime, or it could enter standby time
Now let's see how all of this affects the house hold.
Here we are in the city. In the city there will be service areas, that have WiFi but your phone will also have a no service indicator when there is no service. There is also follow me roaming that allows devices to leave services areas without notifying the carrier
But what if my phone has bluetooth?
Hey, I'm home.
To the house...
Although bluetooth allows for wireless connections, it won't allow you to access any wireless application protocols, so no internet or websites
I think I get it now!
Here at home, you have a router. It is that box with many blinking LEDs. Routers utilizes a broadband connection to connect you to the internet.
Your router is the center of your home coverage area.
This is different from radio transmissions that use analog signals