Cannot receive calls on YOG4PAS1N0 - ONE Q&A, Help & Troubleshooting

I am using Stock Cyanogen OS 12.1 YOG4PAS1N0, Build Number - LMY48B with T-Mobile.
I am facing a weird issue where I cannot receive any call. The call directly goes to voicemail after a couple of rings. There is no notification of the call at all on the device. I can make a call and send/receive texts. I can also connect to 4G and Wi-Fi. Everything else also seems to work fine.
Any suggestions would be appreciated. TIA

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[Q] Help! Stock HTC Inspire not receiving incoming calls or texts

So about 3 days ago my Inspire randomly stopped receiving incoming calls/texts, callers ring out to voicemail and I have no idea anyone has called. Talked with AT&T tech support and found out there are no problems on their end. Also, incoming calls/texts will be received during outgoing calls I make (apparently the calls are routed differently for call waiting). I've tried deleting apps i've downloaded recently and even a factory data reset, still with no luck. If anyone has any idea what could be causing this problem, I would really appreciate any help you could offer. Thanks!
- B
take out SIM
put back in
try SIM swapping with other phone
I am having same problem, randomly not receiving calls if the caller leaves a VM I generally get it later. sometimes my wife will call me on home phone and tell me my cell is not ringing and if I try to call myself it works about half the time, no idea what is causing this.

Wifi blocks incoming calls and sms!! - BUG????

Hi
Im having a strange issue that i only just noticed and was wondering if others are having the same problem.
It seems when i am connected to either 5ghz wifi AC or Wifi 2.5gz N,
My phone refuses to accept incoming calls, will call out just fine but will not let me receive.
when I turn wifi off calls come through OK, Just wondering if there is someone who can help.
Update - I have re-flashed both kernel to stock - same wifi being on blocks incoming calls.
I have re-flashed the ROM - again, same issue Wifi seems to interfere with incoming calls and sms. -- Will not receive anything until I disable wifi??
I have also just booted into Safe Mode and the same problem still exists - Wifi is blocking incoming calls, but i can send sms and calls while being on wifi.
Is this a Bug!!! should I report this to CM - could some one else please try this process.
I have also checked and double checked my APN settings and they are correct.
Will do a complete factory reset and see if problem still exists.
UPDATE 2
This has to be a bug I have factory fastboot.zip'd back to XNPH22R
and the wifi bug is still there!
Thankyou in advance
I have the same problem, for which not received a call on the job.
How to solve it? help
I realised my APN settings it was also using 4g but my provider doesn't do 4g when set to 3g only my problems went away.
What Rom are you using? That would help.
Stay to the latest version of the rom
Sent from my One A0001 using Tapatalk
I changed the sim card and the network, the problem is solved.
Dealing with this issue on my AT&T LG G8 on T mobile.

930F - Unable to Make Inbound or Outbound calls [Australia]

Hey Guys,
Hoping you can help me. Galaxy S7 930F running custom rom:
(https://forum.xda-developers.com/galaxy-s7/development/rom-galaxy-project-t3440314)
Ran it in December v8.13 with Android 6.0.1 and was getting the follow issue:
- Inbound and Outbound Calls Unable to connect
- SMS/MMS and data over 4g/3g good.
- Different carrier sim - All ok
- Sim in different phone - All ok.
Decided to update to v9 with Android 7, on a full wipe and format and still the same issue.
APN setting are good. copied from old to new, even tempted reentering to be sure. but still the same
Under SIM status shows as connected but still unable to connect.
1. When I make an outbound call I get nothing, just the sound of attempting to call, no ring and just silence.
2. Inbound calls get a 'The mobile phone you are calling is not accepting incoming calls'.
Anybody got any suggestions? Getting really confused now.

Connectivity issue

Hi, I have an L29 C432B581 on Virgin mobile in the UK. There's a strange issue that intermittently, the phone does not receive incoming calls and sends them straight to voicemail. Outgoing calls are fine, and usually (but not always) in coming calls made after outgoing calls are also fine.
I've checked the call forwarding settings, already done a factory reset, got a new sim from the carrier, but no luck. Tried the sim on a different phone and no such problems.
Its as though the phone goes to sleep for incoming calls and needs to be woken up by reconnecting to the carrier.
Not sure if I'm missing a straightforward setting somewhere or if its a handset issue. Any help would be highly appreciated.
Thanks

Can't receive calls, have to cycle airplane mode to activate data

Hello, so I recently went from sprint to t-mobile, ported my number, etc. The plan was to flash U onto my g930p but I'm stuck on sprint's qjp3/series 5 firmware until a compatible U or even T firmware is released. I have had a couple of issues with my device that have sort of popped up over the month or so I have been on tmobile, namely that I cannot receive calls, every time someone calls me they are sent straight to voicemail. I do receive notifications for voicemail and the voice messages themselves, but that's it. I can make outgoing calls, however usually the first attempt at an outgoing call fails, then further attempts actually dial. Also, upon restarting the device I always have to cycle airplane mode in order to get the data to catch and start working. SMS and MMS work fine. If anyone has any insight into solutions to these problems, particularly the not receiving incoming calls, I would greatly appreciate it.

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