Cell Phone Networks - please help me understand

[pcslookout]

If you can't get 4G or 3G on your phone because of a building or dead spot can text and phone calls still work ? If so why and how?

P.S. mods if this is the wrong section please move.

 

[gpse]

That depends, if the phone says no service, then no calls or text. If it looses LTE (4G) or HSPA/UMTS (3G) then depending what carrier you are on, it can still drop down to EDGE or 1x (2G) and make calls/text messages.

 

[lopri]

Does wifi calling work under such condition of phone is connected to wifi?

 

[bruceb]

It should since you are connecting through your own WiFi Internet ... The app on your phone tells the WiFi connection what to connect to to make the calls.

 

[KentState]

If you can't get 4G or 3G on your phone because of a building or dead spot can text and phone calls still work ? If so why and how?

P.S. mods if this is the wrong section please move.

So phones couldn't make calls before 4G and 3G? Think about it.