Forum Discussion
No se reciben llamadas y los mensajes de textos se demoran
Hi all, trying to find a resoultion to this issue that's been happening for the past 5 months. My phone is an unlocked HTC u11. Randomly I will not receive calls when I have full bars. No borra...
We know it's super important to get calling and delayed messaging issues like this resolved. Issues like those can be caused by another of issues but we do have some troubleshooting steps you can follow that'll help. Nuestra No se puede llamar, llamadas interrumpidas y otros problemas de llamadas is the best place to start for resolving issues with incoming calls going directly to voicemail. You can use our Solución de problemas con mensajes de texto for some helpful steps with delayed messages. If you're using a Non-T-Mobile device, you'll want to place your SIM into a T-Mobile supported device to see if the issues continue. If they only happen only in the Non-T-Mobile device, a last resort will be resetting the phone. For T-Mobile branded devices, please follow the steps in the links above, and Community-2153 and have our Team of Experts or T-Force team to file a Trouble Ticket. Thanks everyone.
I thnk you are correct in believing tha it i only happening on non-Tmo branded phones
I believe it is happening on phones that do not have all the bands T-Mo is using now. I suspect they changed them in expansion of the network.
Had an Honor 6x which worked fine up until ealier this year.
Honor bands: LTE: 2, 4, 5, 7, 12, 17 Bands
After no resolution, I filed a complaint with the FCC to see if that would escalate the issue. Was contacted immediately by a nice lady supposed to be connected with the president's office. She said the engineers asked if I could switch the sim from the Honor to another phone. The only other phone I had was a several year old Lumia 950xl (Australian Model) I did the switch and the problem did go away on that number. Unfortunately, the Honor still has the problem even tho it has a different number now, as does my wife's.
Did some checking on the Lumia to see what the difference was. The Lumia's bands are:
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20 (800), 28(700), 38(2600), 40(2300)
The additional bands on the Lumia are 17(700), 20 (800), 28(700), 38(2600), 40(2300).
As somethin0g of a consolation, TpMo sent me an LG Stylo 4. It only has 2GB ram but is nevertheless pretty fast and has the latest version of Android, plus more bells and whistles, e.g. wifi calling and some android thing that sounds like Apple Face Time. I have tried setting it up for my wife, but she still wants her old Honor even tho it still has a problem 😥 The Stylo bands are:
LTE: 1, 2, 3, 4, 5, 7, 12, 13, 20, 38, 41, 66, 71
Comparing the Lumia, Honor and Stylo, it looks like the bands missing on the Honor and present on both the Lumia and Stylo are 20 and 38 so I suspect lack of those bands are the cause of the problem. Can others check their phones' bands for comparison?
There seems to be something magic about 20 and 38 which eliminate the problem.. 66 and 71 get the latest T-Mo features, but they don't seem to be required to eliminate the problem we are discussing as the Lumia 950XL doesn't experience the problem and doesn't have those bands. I wish the engineers would be a little more helpful it figuring this out. It has to be hurting T-Mo's reputation as some of the people in this thread have switched. My daughter was on our plan and left.
I myself was thinking of trying Consumer Cellular as they got good ratings on Consumer Reports and supposedly used the ATT network. But then I read that they had started using the T-Mo network also, so that wouldn't help.
I'm only still here as we have 4 lines for $100 and have two phone without the problem. Others might not be so lucky
