ATT ONE M8 LTE Voice calling issue - One (M8) Q&A, Help & Troubleshooting

So recently flashed Viper One. Noticed drop in Battery life so I restored to just after I rooted.
Its back to stock ATT/Sense. Still rooted etc. But noticed that I am not receiving and am unable to make calls. Dial then immediately hangs up. (Called sisters phone, she gets missed call but is unable to answer) restored to factory and recovered multiple times. Cleared cache.
Unchecked Enhanced 4G LTE Services and I am able to make and receive calls as normal. DATA is still listing as LTE but I just dont get the HD voice calls. Is there something I am missing as to why this would not be working correctly?

bigmyke84 said:
So recently flashed Viper One. Noticed drop in Battery life so I restored to just after I rooted.
Its back to stock ATT/Sense. Still rooted etc. But noticed that I am not receiving and am unable to make calls. Dial then immediately hangs up. (Called sisters phone, she gets missed call but is unable to answer) restored to factory and recovered multiple times. Cleared cache.
Unchecked Enhanced 4G LTE Services and I am able to make and receive calls as normal. DATA is still listing as LTE but I just dont get the HD voice calls. Is there something I am missing as to why this would not be working correctly?
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Hey, were you able to resolve this issue? I'm having the same exact problem

Both phones need to support VoLTE to get any benefit. It was supposed to be that if one of the phones didn't support it, that it would fall back. Maybe ATT isn't quite ready.

Related

No signal, T-mobile, WCDMA

So i rooted my phone over a week ago, and tried out many different roms. Everything was going fine, until i noticed yesterday that i kept losing voice and data connection. I tried updating to the latest radio which was out today 5.09.00.20, but still have the issue.
The only workaround i've found so far is to set the network mode to GSM only. But obviously it's not very practical for a phone like the desire. When i have it on GSM/WCDMA Auto, it keeps voice and data on for about a minute, then i lose it. And when it's on, i still can't make any calls. But i can make and receive calls fine on GSM only.
Anybody have a clue what's going on here? I tried calling T-Mobile, but they were as useless as always. Apparently there was an issue on the 29th, which is now resolved, and they refreshed something on my profile. So i dunno if rooting/flashing my Desire has caused this or if it's some network outage.
I'm currently running the latest DeFrost rom. I've tried SenseFroyo (Opendesire), LeeDroid & i'm now running the official 2.2 sense rom.
I've also been having problems when connected via 3G for the past few days, but only when I'm at home (so I think it's a specific cell). The signal indicator shows a good signal but attempting to use the internet over 3G just times out, and my voice calls keep getting dropped.
Like you I can work around the problems by switching to GSM only.
I think it might not be a problem with my phone though, because I've tried putting my SIM card in my Nokia N95 and the internet doesn't work over 3G on that either (internet works using GSM on N95). I did manage to make a call on my N95 when my Desire was dropping both incoming and outgoing calls within seconds though.
Weird! I'm going to give it a few days and report it to T-Mobile if it's still happening.
It's fixed for me now. I guess it was a network outage

Missing calls

I'm getting google voice and email notifications saying that i've missed a call, but my phone never rings. Ive tested it by calling my phone (with full signal bars) and it doesn't ring. The only way to fix it is to make a call using my phone and then i'm able to receive calls.. Has anyone ran into this issue? So far it seems to occur when i'm indoors and have absolutely no reception for a while. Then once i go back out it doesn't reconnect to the network even though it displays full bars? I dunno. I'm on a stock verizon htc one.
I tend to have very poor/no signal in my basement and haven't had an issue yet. I will try and let the phone sit in an area with no signal and see what results I get.
bbqkittens said:
I'm getting google voice and email notifications saying that i've missed a call, but my phone never rings. Ive tested it by calling my phone (with full signal bars) and it doesn't ring. The only way to fix it is to make a call using my phone and then i'm able to receive calls.. Has anyone ran into this issue? So far it seems to occur when i'm indoors and have absolutely no reception for a while. Then once i go back out it doesn't reconnect to the network even though it displays full bars? I dunno. I'm on a stock verizon htc one.
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Perhaps you blocked that number. That happens to me when a blocked number calls.
cstrife999 said:
Perhaps you blocked that number. That happens to me when a blocked number calls.
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definitely not a blocked number. Called my phone using brother's phone. Phone didnt ring. I then called my voicemail successfully using my phone and then hung up. Called my phone again using my brother's phone and then it started to ring.

[Q] Only data connection works. Voice stopped working

Hi.
I have had my M8 for a month.
Two days ago, I discovered in the morning that I could not make any calls, and that no one could call me. SMS did not work too.
Disabled 4G, and was back again. So I guessed it was just my phone company having problems with their 4G service, since 3G worked fine.
Tried several timnes after that to enable 4G, but everytime I got no signal bar.
This morning it got worse:
Now 2G and 3G doesn work either.
The strange thing about this "new" status, is that I have full signal. Data traffic works. So internet stuff works fine, but SMS and Voice does not work.
Called my phone company, and they checked their service in the area pluss they also checked my acount, without finding any errors.
They are saying that the error has to be on my phone.
I have booted the phone, reinstalled the SIM, but still the same status.
I also shoud mention that I am running the latest stock SW rom,
I am starting to wounder if I have a HW error on my phone?
Any sugestions on how to fix this?

[Q] E980 loses signal when calling at home

My E980 has a real problem making calls in my house. I have great signal and can use data without any problem, but if I try to make a call I go from 4G LTE and 4-5 bars to nada. If I am lucky I will get one or two bars back before the call times out and actually get to connect; otherwise the call times out and if I try again it tells me I can only make emergency calls. I have to either reboot or go into airplane mode and back to get it to try again. No other phone on the same network (AT&T) has this issue, however, and my SIM works just fine in other phones (does not have this problem).
I am running stock 4.4.2, software version E98020h. I am rooted and have Xposed installed with the G2 Tweakbox.
I've done multiple searches and did not find anything that pertains to my issue.
If flashing is required I am not sure if that is possible as I cannot access my SD card (KitKat issue and no app has helped).
Or maybe not. Time to find a decent ROM then.

P8000 cannot receive phone calls on 4G - Goes to voicemail everytime

I am having issues with the P8000 phones I have. The phone is taking too long to switch from 4G to 3G when receiving a call so it goes to voicemail everytime. If it is set to 3G only it rings perfectly.
Dialling out also takes an age as because of the long time it takes to switch, but due to there not being a time limit, it does finally dial after about 15-20 seconds.
Has anybody had this happen to theirs and was there a workaround at all? (They are using Telstra in Australia)
Also when you factory reset the phone it clears the IMEI info and you have to enter engineering mode to put them back, is this normal behaviour as I would expect a factory reset to leave the IMEI information untouched.
Hopefully someone can assist me with a workaround.
same thing here...
Mattycee said:
I am having issues with the P8000 phones I have. The phone is taking too long to switch from 4G to 3G when receiving a call so it goes to voicemail everytime. If it is set to 3G only it rings perfectly.
Dialling out also takes an age as because of the long time it takes to switch, but due to there not being a time limit, it does finally dial after about 15-20 seconds.
Has anybody had this happen to theirs and was there a workaround at all? (They are using Telstra in Australia)
Also when you factory reset the phone it clears the IMEI info and you have to enter engineering mode to put them back, is this normal behaviour as I would expect a factory reset to leave the IMEI information untouched.
Hopefully someone can assist me with a workaround.
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Click to collapse
I'm having similar issue... the only difference is that I do not have 3g since I leave in canada and frequencies don't match.
Anyways, when I set my phone to 2g, I can call and receive calls no issues.
Once I select 4G, I'm able to make calls (after a while since the phones takes it's time to change from 4g to 2g) but I cannot receive... I'm assuming the phone does not know a call is coming since calls use 2d...
Hopefully this can be fixes soon.
Using Eragon room...
update
after a conversation I had with my provider I may have identified the issue...
LTE does not carry over call service (only some provider through voLTE). So, when a receiving call is arriving, the provider sends a signal to the phone (called non assess stratum) that triggers it to change to 3g or 2g to receive the call.
when we want to make the call, the issue does not applies since the phone already knows we are making a call and automatically changes to 2g/3g.
so, will someone be able to help us on how to make sure the phone get the signal from the outside to change network type when an incoming call is arriving?
hope so.
thanks,
For the invalid imei after factory reset (or firmware upgrade), it doesn't happens everytime but it happens often. It's seems to be a problem with all mediatek based phones (it's the case on all my previous mediatek phones(5))
Cheers
I am experiencing the same issue re: no calls coming through when in 4G cause it doesn't switch to 3G in time and it goes to voice mail. (I'm with Telstra - Australia)
Has there been any update on this issue?

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