XPost: comp.mobile.android, sci.geo.satellite-nav   
   From: scharf.steven@geemail.com   
      
   On 9/26/2023 7:13 AM, Frank Slootweg wrote:   
      
   >    An interesting experiment would be for you to do the following:   
   >   
   >    Switch off 'Mobile data' (you have found where that switch is on your   
   > phone) *and* switch off Wi-Fi. Now see if you still can make or receive   
   > a phone call or/and can send or receive a SMS message.   
   >   
   >    My 'guess' is that you can still do that. If so, we've proven that the   
   > 'Mobile data' part (read: Internet access) is off / no longer in use,   
   > but the *other* data for calls and SMS is still on / in use. And that is   
   > exactly my point.   
      
   Correct. But you won't be able to send or receive an MMS.   
      
   But remember in pre-smart phone days you could still send and receive   
   MMS with the phone using data over AMPS, GSM, and CDMA. The carriers   
   charged for "messaging" which included a fixed number of SMS/MMS but   
   IIRC they did not distinguish between SMS and MMS.   
      
   The early cameras on smart phones generated files only in the hundreds   
   of KB so the carriers probably saw no reason to charge seperately for   
   MMS, or they had no system to do so; if your plan included 300 messages   
   they could be SMS or MMS. Now, a single iPhone photo can now be 75MB so   
   if you take just 13 photos of your meal you're at nearly a GB.   
      
   --   
   “If you are not an expert on a subject, then your opinions about it   
   really do matter less than the opinions of experts. It's not   
   indoctrination nor elitism. It's just that you don't know as much as   
   they do about the subject.”—Tin Foil Awards   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)