Not Receiving calls and delayed text messages

This kind of issue happens across all carriers. The reasons for which can vary and would  require someone with the tools necessary to look at things for you. So basically I would call or message the team force team and explain the issue to them. I would also pay close attention to when this happens so that maybe a pattern can be formed. For example, delayed texts only occur when messengering person X from Verizon. Or maybe delayed messages only occur while messaging iPhone users.

You can reach T-force by dialing 611 on your phone or over social media like Facebook/Twitter.

Mike, yes there are settings in the Galaxy S7 to switch my phone to 3G or 2G.  I will test under these bands tomorrow and report back.

FYI, someone from DriveMode support has reached out to me with an initial set of questions and suggestions. His suggestions didn't help, but I provided a more detailed description of the issue, which fortunately is consistently repeatable. Waiting to hear back from him, which I assume will not be until after the weekend. I'll let you know if we make any progress determining what the issue is.

It really surprises me there isn't more online discussion to be found regarding this problem...  it's like I'm the only one having this issue, but it's hard for me to believe that's the case.

@tmo_mike_c I tried changing the band to none LTE and the problem persists. Im going to call the support team on the weekend when I have another phone to call from. I'll report back with more information after that .

Thanks for the update, @puffie300​! We look forward to your update after using a different phone over the weekend.

@bruble73, have you noticed any improvement after rolling back to the previous build?

Hi, @puffie300​ and @bruble73​! Just wanted to check in once more on your respective issues and see if there were any updates! 😊

I recently started having this exact problem. I thought It could be a problem with my phone, so I have tried: restarting, power off & restart, and default factory reset. And I continue to have this exact problem. Can someone please help? 

Same issue here in San Diego.  Android phone also.  Wonder if iPhone's (with iMessage) would fare better?

The disappearing call thing is bizarre, though...rings on the calling phone, but the called phone is doing nothing.

TM is acting like they never heard of this, but I'm guessing the problem is much more common than they want to admit.

I don't think it is Puffie's phone, IMHO there is some problems with the TMO network, possibly introduced with the recent upgrades. All the same problems others are reporting, starting in the past few months. Seems completely random. May have something to do with where the caller is on the network.

In Houston 77096. Using an Honor 6x which I got last summer along with a new TMO sim for my number that's been on the network for years. It does 4g.

Yesterday's typical example of what has been going on for a month or two:

Got several texts from my daughter in New Orleans 350mi away in the early morning with no apparent problem. Called the wife in the Texas Medical Center 8-10 miles away.mid-morning. Later got a call from someone. All normal. In the afternoon, wife texted me while leaving work about 3pm. Nothing on my phone. When she got home, she said she had also tried to call on the way home but they had gone to voicemail. She usually complains that during similar calls, she gets a voice message that I am out of the TMO calling area even though I am sitting in my usual spot.

When she got home, I checked my voicemail and found that someone had left a voicemail even though my phone didn't ring and the phone's call log shows no calls. I called the person back and he said he had called within the previous hour which would have been 2-3pm.

After the wife got home, the text messages she had sent while leaving work finally arrived about a half hour late.

I checked her usage on the TMO site and it didn't show the outgoing calls she said she made.

A typical afternoon on TMO.

This problem is not just for TMO but also its resellers. Here in southern Indiana I also have lycamobile, which uses the TMO network, with a galaxy S7 and some LG G4s.  I have the same problems with callers saying they tried to call me, but my phone never rings.  The callers get a "this facility is not available for the subscriber" message, as I disabled my lycamobile voicemail.  Sometimes the calls go through, and sometimes not, even just minutes apart and with the phone in the same location.  It affects my wife's lycamobile phone as well.  For a while here the tower would even drop periodically so the phone said "no service", which could be fixed by toggling airplane mode on and off.  My mother has lycamobile in San Diego and has been having the same trouble. TMO fixed that now, but the problem with calls not being received is still an issue.

My workaround solution has been to use a google voice number, then have it ring both my cell number and my google hangouts app directly.  This allows me to get calls over wifi or LTE, even if the phone service itself won't ring.  If everything is working, an incoming google voice call will ring both my phone and my hangouts app, and I can choose which way to take the call.  In the last few weeks (months, really) I've had a lot of calls to my google voice number that ring only my google hangouts app, but the phone itself doesn't ring.  That means the phone is working fine, but TMO network and towers are failing to get the call through.  At least I can get calls with google voice and hangouts app.  TMO really needs to get their towers and network fixed so calls go through.  All this expanded coverage is fine, but it seems to be stretching the tech back end too thin.

I am experiencing the same issue. I was expecting a technician from 9 AM and 10 AM. I have been staring at the phone for the entire hour pretty much, since I was aware of how some phonecalls are not received at all. I didn't see anything on my phone by like 9:50 AM and decided to make a call to the technician. Then, my phone all of a sudden showed a few missed calls and voicemails. I am using the unlimited prepaid plan($50/month). Is this happening because t-mobile gives low priority for the prepaid plans?

i have the same problem for about 2-3 months now.  I have called them twice so far.  Once when i called they said their tower updates was not updated on my number in our family plan.  that didn't fix the problem.  The second time i called them starting over to the explain the problem, which ended useless wasting my time.  Has anyone received any response back to any of these forum users from Tmobile tech support?

Now after seeing this thread seriously thinking of changing to a different network.  

I've been having this issue too, since at least February 2018 when I missed a bunch of urgent calls and texts from multiple family members. Since then, it's been happening randomly -- sometimes texts are received immediately and sometimes it's a delay of anywhere from 5 min to over an hour. Multiple contacts (people in my phone, random callers, 2-factor authentication bots) and multiple locations (home, work, coffee shops, restaurants, inside, outside); there's no discernible pattern. Sometimes the phone doesn't ring either and no missed call in the log; I just get a voicemail notification and then come to find out I have, like, 10 or 15 voicemail. No idea how many business-related calls I'm missing from people who don't leave a voicemail. I'm in a large city and my phone shows good reception but is seems to disconnect from the network periodically. Tried clearing the cache and restarting the phone as recommended by T-mobile, no help.

It's not happening with other family members on my plan (one of whom had the exact same phone as me until last month), and I'm not aware of it happening to friends on Tmobile/other networks, so I thought it was just my phone until I found this and other threads complaining about this issue and T-mobile's lack of response. I've been a T-mobile customer since 2008 but I'm thinking of leaving because of this.

There is a lot of online discussion about this same problem.  We have 3 phones w/T-Mobile service and we are all 3 having the same exact problem.  One phone is a T-Mobile and the other 2 are not.  Sometimes a call will ring thru, but it has gotten to be most of the calls don't.  We are testing using the 3 calls from different locations and it happens everywhere we go.