phone won't ring calls go straight to voice mail

Same here. I am having the similar issue regardless of which state I'm in. Mostly notice in my home area, but that's where I'm usually are.. I also called T and suggested to reboot my phone lol, asked them to check the towers, but I think that is more global problem 😥

I was also thinking to switch to 3G when I'm expecting a call, but that is just crazy.

I am having a similar problem where callers say they call but get hung up on after a few rings. This is interfering with medical care as well. Sounds like T-mobile has had this issue for a long time. If nothing can be done, I want out of my contract.

We have the same problem. Sometimes I don't even get a missed call in my phone log. Also have missing texts. Me (Motorola Z3), My wife (iPhone), my son (Google Pixel2) ALL have this problem. Mostly me though. Had many many calls with Tmobile but it is just getting worse, not better. What can I do to fix it?

Same problem here.   Called the help line and they just had me reboot the phone and of course it worked.  Next day I was waiting for a job interview call and it happened again.  Something is clearly wrong beyond just rebooting a phone

Same thing happened to me today and has happened before.  I had my phone right next to me and heard the voice message alert tone.  The phone never rang prior to that and there was no entry in the call log. I had three signal bars at that location.

So apparently, there is a feature in:

Settings > phone > silence unknown callers ... this even apparently is STRONGER than Do Not Disturb because even if the call was within 3 mins of each other, it still went to voicemail! Hope this helps and T-Mobile, you are welcome for solving this issue for some hopefully! And yes, T-Mobile can contract me for an IT Project Management role is needed. ¡Gracias!

So apparently, there is a feature in:

Settings > phone > silence unknown callers ... this even apparently is STRONGER than Do Not Disturb because even if the call was within 3 mins of each other, it still went to voicemail! Hope this helps and T-Mobile, you are welcome for solving this issue for some hopefully! And yes, T-Mobile can contract me for an IT Project Management role is needed. ¡Gracias!

I had the same problem on one of my lines for many months and Tmobile was unable to fix it. Finally I demanded a new phone number and the problem went away. Now another line (my sister) is getting the same problem consistently when I call that number. However if she calls me, I have no trouble calling her back. But that's good for a few hours at most and then once again my call goes straight to her voicemail. Now I notice I'm starting to get missed calls on my own line (main), no ring and no log but only a voicemail. Came close to having a real estate deal messed up because of that.

Have been having the same problem with my phone lately.

Same problem for 2-3 weeks. No ring. Goes right to voicemail. Tried rebooting. Tried Safe Mode. Tried turning off Wi-Fi. Nothing works. No ring tone. Goes right to voicemail. Do not disturb is off. Forwarding is off. Night mode is off. T-Mobile 1st-level phone support person had no ideas. He transferred me to higher-level support. They had me reset the network settings on my phone. Then they tried to reset my call forwarding feature using ##004# dial code, but kept getting "invalid MMI code." Then he had me do a long pattern reset **61*18056377243**10# which did reset my call forwarding, and recovered my ring tone, but the ring time was too short, so he increased the ring time to 25 seconds using code **61*18056377243**25#  ----- and now everything is back to normal.

Apparently, an Android / Samsung / TMobile automatic software update 2-3 weeks ago messed some things up.