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[Q] T-mobile One S won't receive calls

Hey everyone, I just got my One S yesterday and found out last night that the incoming phone calls aren't coming through. I can receive and send text message and make outgoing calls. Any idea if this is a problem with the phone or maybe a t-mobile outage?

OneSnoob said:
Hey everyone, I just got my One S yesterday and found out last night that the incoming phone calls aren't coming through. I can receive and send text message and make outgoing calls. Any idea if this is a problem with the phone or maybe a t-mobile outage?
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Why don't you call the store you got it from or call C.S you just got it so anything wrong with it could be handled with them. Have you tested it yourself calling from another phone?

djdant said:
Why don't you call the store you got it from or call C.S you just got it so anything wrong with it could be handled with them. Have you tested it yourself calling from another phone?
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I just realized that wifi calling works. I also just called t-Mobile and after 30 minutes of diagnostics they told me that there is a network outage for new activations. Since it took them so long to figure out there is a network outage, I think they are full of it.

Are you still having this issue?
My wife just emailed me saying she was trying to call me but the call wasn't going through.
I was immediately getting calls when I changed my SIM yesterday...

fortyoneacres said:
Are you still having this issue?
My wife just emailed me saying she was trying to call me but the call wasn't going through.
I was immediately getting calls when I changed my SIM yesterday...
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When I first turned the phone on and called to activate my new SIM, tmobile made a test phone call to my new phone and everything worked fine. But now that I think about it, I think wi-fi calling was active at the time. I haven't received any calls today so not sure if the issue is still there.

This happened to me when switching telco, I got a SMS from new operator with a date but no time when my number would be ported. On that day I could make calls and send SMS but not get any calls. Turns out my number had been ported to new telco without me realizing this (I was still using my old SIM since it seemed to work to me.) After changing to new SIM everything was fine. All of this was on a desire though so might not apply to you ofc

frdd said:
This happened to me when switching telco, I got a SMS from new operator with a date but no time when my number would be ported. On that day I could make calls and send SMS but not get any calls. Turns out my number had been ported to new telco without me realizing this (I was still using my old SIM since it seemed to work to me.) After changing to new SIM everything was fine. All of this was on a desire though so might not apply to you ofc
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Yep, just got a new SIM card and everything is fine.

OneSnoob said:
Yep, just got a new SIM card and everything is fine.
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Update: The phone worked for 24 hours and now is back to not receiving phone calls. Anyone else experiencing these problems?

OneSnoob said:
Update: The phone worked for 24 hours and now is back to not receiving phone calls. Anyone else experiencing these problems?
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Sounds like you have a bad phone, call CS or take it back and demand a replacement.
Sent from my myTouch_4G_Slide using xda premium

Calls not coming through - possible solution
I had this problem when I first got it.
First under settings->call->Use Internet calling - make sure you select Only for Internet calls.
Now go to wifi and make sure you are connected to a Wi-Fi network - then click the More menu listed under Mobil Network (three dots). If you have wifi calling enabled, go to Wi-Fi Calling Settings->Connection Preferences and select Cellular Preferred - otherwise you won't be able to make calls when not near a Wi-Fi.
Hope this helps - it took me forever to track it down!

no99sqrd said:
I had this problem when I first got it.
First under settings->call->Use Internet calling - make sure you select Only for Internet calls.
Now go to wifi and make sure you are connected to a Wi-Fi network - then click the More menu listed under Mobil Network (three dots). If you have wifi calling enabled, go to Wi-Fi Calling Settings->Connection Preferences and select Cellular Preferred - otherwise you won't be able to make calls when not near a Wi-Fi.
Hope this helps - it took me forever to track it down!
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The problem is i can make calls, just can't receive them. I don't think it's the phone as when people call me it goes to an automated message saying i'm not on the network. Even my voicemail doesn't work.

Caller ID issue

I am wondering if anyone had this issue after rooting the phone, but when I receive calls, their caller ID comes wrong: The number is always is missing the country code:
for example, instead of receiving +1 248 123 4567, i get +248 123 4567. So not only saved numbers are not recognized because they do not match the caller id, but if i let the call stop and try to call back that missed call, I get the operator's automated message saying that the dialed number is wrong.
Any idea about how to fix this?

tuntex said:
I am wondering if anyone had this issue after rooting the phone, but when I receive calls, their caller ID comes wrong: The number is always is missing the country code:
for example, instead of receiving +1 248 123 4567, i get +248 123 4567. So not only saved numbers are not recognized because they do not match the caller id, but if i let the call stop and try to call back that missed call, I get the operator's automated message saying that the dialed number is wrong.
Any idea about how to fix this?
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Go to phone/settings/calls and disable/enable assisted calling
Plus set your current country to match the country code

luis052593 said:
Go to phone/settings/calls and disable/enable assisted calling
Plus set your current country to match the country code
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I tried both enabled and disabled assisted dialing. Problem still persisting. Country code is matching (USA). Any hints?

tuntex said:
I tried both enabled and disabled assisted dialing. Problem still persisting. Country code is matching (USA). Any hints?
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My phone was doing the same. I downloaded prefixer from playstore and its fixed now

NvWatts said:
My phone was doing the same. I downloaded prefixer from playstore and its fixed now
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I installed prefixer a couple of days ago... still not fixed. Can you walk me through how you made it work please?

My phone keeps getting worse... home screen changing to pink randomly, dialtone not working anymore. Rooting my phone was the biggest mistake ever. I wish i could reverse all this process.

XZs on O2 UK "Invalid number" making calls

Hi
I just bought an XZs dual SIM version. I'm having a very strange issue with it.
I have two SIMs installed: one on O2 UK and the other on Three UK.
The three chip works perfectly. Can do everything, voice, data, SMS etc... all good.
The O2 chip however has a strange issue. Every phone call I make it says "Invalid number".
Even if I call using the international +XX XXXXXX type or if I call using the UK style 07XXXXX both say "Invalid number" and do not complete the call.
What is odd is that I can receive incoming calls to the number. SMS and data also works, just making outgoing calls fails.
I checked that the phone supports the bands that O2 uses and it does. It does connect to the network (as I said I can receive calls, use data, send and receive SMS but just cannot make any outgoing calls)
The phone came from Hong Kong, and both O2 and Sony have flat out refused to help because I didn't buy the phone in the UK.
But well, it's a mobile phone, it should work in my country even if it's from HK.
I cannot really understand why I can receive calls but not make them. The SIM card works in my UK Samsung S6 so I do not think it's a network issue.
I have tried setting it to GSM only as it is my work phone and I really only need it for making calls. I've tried WCDMA / 4G / 3G but nothing fixes it.
I have reset the phone. Checked carrier settings etc.
Lastly I have tried swapping the chips around, and tried it with just one SIM but still the problem occurs.
Please can anyone give any suggestions on resolving this issue before I have to send it back ?
Thanks!

never mind. i solved it.
it was a provisioning error by the network, contacted O2 today and they resolved it by doing some kind of reset their end, which they didn't want to elaborate on.
fixed now.

Error while forwarding a call

Hi,
I used to use call forwarding facility whenever needed without any issues. I am getting an error since yesterday. Check the screenshot. It shows up when I open call forwarding from the settings. If I click ok, then I am able to fill in a number but when I select turn on the same error shows up. The sim is in slot 1, in slot 2 using a sd card. I updated the phone via ota to the December security patch 4 days ago. Tried to call forward after the update. Is update the culprit? How to fix it without formatting the phone? I need to forward some calls on priority basis.
Thanks

Bump....

Ever find an answer to this? I'm having the same problem using unlocked LG's (G6 and G7) on AT&T MVNO's. No problem with call forwarding on our Moto X4 (Android One) on the same networks.

barotropic said:
Ever find an answer to this? I'm having the same problem using unlocked LG's (G6 and G7) on AT&T MVNO's. No problem with call forwarding on our Moto X4 (Android One) on the same networks.
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Call forward relies on correct APN settings and an undamaged , correctly inserted SIM card.
Also you cannot set up call forwarding with the wi fi turned on.

Question No Caller ID when using 4G/5G

As the title says I'm having trouble when using 4G/5G. All incoming calls are shown as Unknown. When you force 3G/2G only, caller number is displayed normally. Searching google there are many reports with other phones as well having this issue when used with VoLTE and most of them were fixed with software updates. So I contacted my carrier and told them to disable VoLTE from their side. Unfortunatelly I have no slider in Sim settings to disable VoLTE myself.
After VoLTE was disabled from my carrier all incoming calls were displayed normally. It's not the best solution cause I bought this phone specificaly for this reason, to use VoLTE/VoWifi.
I posted the issue on bug tracker of realme as well.
Currently I'm on A.05 version and I have no idea how I could change to another version to test if it would work.
Any help would be appreciated regarding this issue.
PS. I tried factory resetting several times. Clear data/cache of phone/contacts app as well and tried with another dialer.