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I can make calls without mobile data.

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Anonymous user -  
madmyke Posted messages 52304 Registration date   Status Moderator Last intervention   -
Hello,

I discovered today that I can make calls without Wi-Fi or 3G/4G.

I would like to know how this is possible since it is supposed to cut off.

My correspondent and I could hear each other well, just like a normal call.

Any ideas?

Sincerely.

3 answers

  1.
    contrariness Posted messages 17903 Registration date   Status Member Last intervention   6 243
     
    Without WiFi, 4G, or 3G, you're left with the basic GSM network... Your phone is capable of automatically switching to the available network if the preferred network is not available...
    7
    1. Anonymous user
       
      So, if I didn't have a SIM card, I wouldn't have been able to call because the basic GSM is on my SIM card?
      0
      1. contrariness Posted messages 17903 Registration date   Status Member Last intervention   6 243 > Anonymous user
         
        Without a SIM card, no calls can be made on GSM, 4G, 3G networks, etc......

        However, with special devices that do DECT and GSM.. (the Panasonic KX-PRX150 is one of them).. you could have made calls with a landline....
        0
  2. xylon
     
    Hello XGames17

    Before you had access to 3-4G, which is not necessary for CALLING, how did you make calls with an old phone?
    5
  3. kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   5 157
     
    Hi

    ???

    WiFi, 3G/4G, and mobile data have nothing to do with phone calls.

    They are used to have an Internet connection (with mobile data for 3G/4G)

    Without a SIM card, no phone calls

    1
    1. soHo
       
      Hi, without a SIM card there's no connection either 3G or 4G, the Wi-Fi is only available for the internet.
      0
    2. Anonymous user
       
      Yet calls on 3G/4G and even Wi-Fi exist today.
      0
      1. madmyke Posted messages 52304 Registration date   Status Moderator Last intervention   12 485 > Anonymous user
         
        yes but not directly with the phone's function, Wi-Fi calls are done through a specific app, such as Snapchat, Messenger, and others like Skype.
        In fact, this has existed for a very long time, it's VOIP but technically it has nothing to do with it.
        0