Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

systemind

macrumors member
Original poster
Jul 24, 2011
49
25
I noticed that every time I take a phone call, my iPhone 11 switches to 4G until the call is over then switches back to LTE. This happens in every call in multiple locations. Isn’t it supposed to stay in LTE? I don’t know if I never paid attention to this and it was always like that with my previous Max or if it’s an issue with T-Mobile.
 

systemind

macrumors member
Original poster
Jul 24, 2011
49
25

Attachments

  • F936A2E9-3589-40C5-946C-35ED9497E241.png
    F936A2E9-3589-40C5-946C-35ED9497E241.png
    136.2 KB · Views: 194

Ungibbed

macrumors 6502a
Dec 13, 2010
765
198
USA
I have T-Mobile as well, but never experienced a drop to 4G. I don’t have a full strength signal either (hovers around 1 or 2 bars on my iPhone 7 and 11). I wish that they would add a 600 MHz tower in my area as I have experienced the speed difference while in other parts of CA. Faster than my cable modem!
 

apolloa

Suspended
Oct 21, 2008
12,318
7,802
Time, because it rules EVERYTHING!
I noticed that every time I take a phone call, my iPhone 11 switches to 4G until the call is over then switches back to LTE. This happens in every call in multiple locations. Isn’t it supposed to stay in LTE? I don’t know if I never paid attention to this and it was always like that with my previous Max or if it’s an issue with T-Mobile.

As stated above this is your carriers fault, my XR dies the same when making a call it changes from 4G to 3G, I’m in the UK so don’t think we get LTE, it just shows 4G instead. Anyway it does this as my network doesn’t support voice over LTE, yet.
 

mi7chy

macrumors G4
Oct 24, 2014
10,495
11,155
T-Mobile does support VoLTE so your account/SIM probably isn't provisioned correctly. Take it to a T-Mobile store to have it checked out.
 
  • Like
Reactions: JamiLynee

AppleHaterLover

macrumors 68020
Jun 15, 2018
2,048
2,051
As stated above this is your carriers fault, my XR dies the same when making a call it changes from 4G to 3G, I’m in the UK so don’t think we get LTE, it just shows 4G instead. Anyway it does this as my network doesn’t support voice over LTE, yet.

The network is the same (4G is called LTE in the US because in the iPhone 4S days AT&T decided that calling HSPA+ (i.e. 3.5G) was not deceiving, just like it's doing with "5G").

My phone does that too.
 
  • Like
Reactions: apolloa

Ungibbed

macrumors 6502a
Dec 13, 2010
765
198
USA
I would go to a T-Mobile store and have a new SIM punched and provisioned. Again, despite being in a area with poor signal, my phone has never dropped to 4G during a call and back.
Sure there is some drift on some days where I do see 4G or even Edge sometimes but it’s a very rare sight.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.