Please could someone clarify this, if you have the answer:
You download messenger on your android phone and you register with the number of the sim card which is in your phone.
Do I need to have the sim card in the phone for it’s sms messages to go to Facebook messenger?
What if I took that sim card out and replaced it with another sim card and number would I still get the old sim card and numbers messages through Facebook messenger, if I left the old number on FB messenger?
The reason I say this is I am waiting for my old sim card number to transfer over to a new network and instead of forwarding texts, I wonder if Facebook messenger would pick them up….I understand this would mean Facebook would have to be connected to mobile networks…is this the technology Facebook is using or is it straight from the sim in the android device that messenger is on?