AT&T: Switching from 4G to LTE iPhone 5

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Make Donuts, Sep 27, 2012.

  1. Make Donuts, Sep 27, 2012
    Last edited: Sep 27, 2012

    macrumors newbie

    Joined:
    Jun 24, 2010
    Location:
    utah
    #1
    Title Correction: AT&T: Switching from LTE to 4G Iphone 5


    I want to check to see if this is happening to anybody else, When placing a phone call it downgrades from LTE to 4G and after hanging up 4G will disappear and you have nothing displayed for up to a minute then LTE shows up? This happens to me all the time even when texting as well. I might be wrong but was it Verizon who cannot simultaneously run LTE whilst making a call and AT&T not having this problem?
     
  2. macrumors 68030

    dictoresno

    Joined:
    Apr 30, 2012
    Location:
    NJ
    #2
    it drops to 4G to make the call. only data is used for LTE.
     
  3. thread starter macrumors newbie

    Joined:
    Jun 24, 2010
    Location:
    utah
    #3

    Ah, ok so 4G/HSPA+ for Calls and LTE Data.
     
  4. macrumors 68030

    dictoresno

    Joined:
    Apr 30, 2012
    Location:
    NJ
    #4
    4G/H+ for data and calls, LTE for only data.

    once a call is placed, the LTE radio shuts off and switches to H+ only for the duration. no one uses LTE for voice yet, only data.
     
  5. macrumors newbie

    Joined:
    Sep 27, 2012
    #5
    Meaning no one is offering Voice over LTE, as in the same concept of Voice over IP. Not to be construed with device establishing simultaneous connections to both a voice protocol/network, and an LTE protocol/network at the same time in the same way it is possible to remain connected via wifi while making a call.
     
  6. macrumors 68030

    dictoresno

    Joined:
    Apr 30, 2012
    Location:
    NJ
    #6
    at&t will offer LTE data connection. however, once a voice call is made, bands will switch and data and voice will be sent over 850/1900, as opposed to the LTE bands. once the call is finished, the phone will revert back to both listening for calls on the 4G bands and sending/receiving data on the LTE bands.
     
  7. macrumors newbie

    Joined:
    Sep 27, 2012
    #7
    it drops to 4G to make the call.[​IMG]
     
  8. macrumors member

    Joined:
    Jun 11, 2008
    Location:
    Harrisburg, PA
    #8
    Anyone noticing that it sometimes takes forever to switch back to LTE after the phone call?

    Sometimes it takes longer than a minute at which I go into settings and manually toggle the switch.

    So far it seems to take, on average, about 10 seconds after ending a phone call to go back to LTE. Kind of annoying.
     
  9. macrumors regular

    Joined:
    Jul 24, 2011
    #9
    Switch back is fairly quick for me. Did you notice any difference when you are at different locations?
     
  10. macrumors 68030

    dictoresno

    Joined:
    Apr 30, 2012
    Location:
    NJ
    #10
    mine wont even go on LTE. i get 2 bars of LTE, then after a few minutes the phone reverts back to 4G and never goes back.
     
  11. macrumors newbie

    Joined:
    Nov 12, 2012
    #11
    LTE does not return if hotspot is ON

    Well, it is known that for the voice call iphone 5 goes back to 3G/4G HSPA and it actually does return back to LTE within a minute or 2 BUT ONLY IF I AM NOT USING IT AS AN ACTIVE HOTSPOT! Anyone experienced the same? any workaround other than turning HS off and back on?
     

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