1. superlawyer15's Avatar
    So ..before the launch there was a lot of debate as to what the removal of DTM means
    I'm sad to confirm that it results in the inability to talk and surf on LTE

    The phone reverts to hspa+/3g once you are in a phone call

    While this is by no means a deal breaker
    I just wanted to let the rest if you know
    11-23-2013 03:34 PM
  2. Laura Knotek's Avatar
    That's an AT&T issue. AFAIK, all of their LTE devices do that.
    11-23-2013 03:36 PM
  3. Citizen X's Avatar
    The phone reverts to hspa+/3g once you are in a phone call
    Just like my Lumia 900. Are you aware of any phone on At&T that doesn't do this?
    11-23-2013 03:45 PM
  4. Laura Knotek's Avatar
    Just like my Lumia 900. Are you aware of any phone on At&T that doesn't do this?
    I don't know of any. The iPhone on AT&T does that too.
    11-23-2013 03:47 PM
  5. crav4speed's Avatar
    All LTE phones do this. LTE is for data only until VoLTE is implemented. When a phone call or a text comes in or goes out, it uses the 3G network.
    11-23-2013 03:53 PM
  6. superlawyer15's Avatar
    On Verizon I could talk on the phone and surf on lte

    Its not a volte issue
    You don't need the voice call routed on lte to use data on lte
    11-23-2013 04:01 PM
  7. crav4speed's Avatar
    On Verizon I could talk on the phone and surf on lte

    Its not a volte issue
    You don't need the voice call routed on lte to use data on lte
    VoLTE has not been implemented on any network in the USA. On Verizon phones, calls and text are routed through their CDMA network and since you can't talk and use data simultaneously on CDMA, Verizon phones route the call through CDMA and keep the LTE radio active for data use, hence the reason for a sim card on Verizon phones. GSM phones work differently in that the radio disables LTE and routes voice and data through 3G. 3G allows for simultaneous voice and data so it's not an issue with GSM phones.

    Edit: Sorry... Verizon does have VoLTE but I'm not sure if any devices actually support it yet.
    11-23-2013 04:11 PM

Similar Threads

  1. Replies: 75
    Last Post: 10-01-2017, 04:50 PM
  2. Replies: 11
    Last Post: 12-06-2013, 12:00 AM
  3. htc 8x stuck on gears after gdr3 update
    By Brett Roberts in forum HTC 8X
    Replies: 5
    Last Post: 11-23-2013, 12:33 PM
  4. How do you turn off facebook chat on 1520?
    By Shockwave78 in forum Nokia Lumia 1520
    Replies: 4
    Last Post: 11-23-2013, 11:15 AM
LINK TO POST COPIED TO CLIPBOARD