I was having a problem with making phone calls where I could only make a call with Enhanced LTE enabled. Otherwise it wouldn't dial out. I tried multiple ROMs and radio versions.
So in case anyone else was having this issue...
Eventually, I played with the settings...
*#*#4636#*#*
Clicked 3-dot menu on top-right
Select Radio Band
Select "USA Band".
I then noticed when I made calls, the LTE would switch to HSPA+ and the call would dial out.
So it seems that before, the phone was staying on the LTE band and voice data wasnt working.
Sent from my Nexus 5X using XDA-Developers mobile app
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So I converted my phone from AT&T to developer edition, flashing an RUU.exe. Everything worked fine, updated to latest 5.1. But I noticed I couldn't make calls. So I checked the menu *#*#4636#*#* and noticed under phone it was set to LTE Only. Changed it and I could make calls.
Posting just in case someone else runs ito this problem (Apparently no Voice over LTE in Harrisburg, PA.)
I don't think there are any carrier that support Voice over 4G/LTE yet.
I am using a HTC 10 phone au kddi Japan variant. Got success in converting the phone to international but have been rocking custom ROM for a while already now. Bootloader unlocked, S-OFF (obviously). Been running the custom ROM Viper ROM ok for a while but when I converted to the WWE this strange bug happened. I got data, LTE, good connection but no call or sms and it said No service despite the carrier showing up in the menu. Huge thanks if anyone can help me
I got this OP3 that made me change it to the HTC 10. The Problem of it may give you an explanation.
It couldnt Lock signal on LTE and was returning to Edge So you had to press *#*#4636#*#* and select the Network type to LTE only.
However although the phone locked LTE for good then it couldnt make any phone calls or txt msg.
I had to choose LTE/CDMA or LTE/GSM
In Order to change while in call to Edge or "H+" Network.
I guess by that we understand that LTE is only for DATA and not for Voice calls and txts...?
Hope i helped...
kanth1991 said:
I got this OP3 that made me change it to the HTC 10. The Problem of it may give you an explanation.
It couldnt Lock signal on LTE and was returning to Edge So you had to press *#*#4636#*#* and select the Network type to LTE only.
However although the phone locked LTE for good then it couldnt make any phone calls or txt msg.
I had to choose LTE/CDMA or LTE/GSM
In Order to change while in call to Edge or "H+" Network.
I guess by that we understand that LTE is only for DATA and not for Voice calls and txts...?
Hope i helped...
Click to expand...
Click to collapse
Yeah, I tried your method but it didn't work. Don't really understand why that happen tho because if I have the right radio to have LTE then why can't I do call?
I have a HTC One M8, AT&T, TWRP recovery, flashed and rooted with ICE 8.2.2; SuperSu.
When I am connected to 4G/LTE and someone calls me, it rings on their end but my phone does nothing. I checked my IMEI and see LTE is supported. When I switch my mobile network from 2G/3G/4G (auto) to 2G/3G (auto), it connects (H, H+ icon) and my phone receives incoming phone calls. My SIM card does not mention "4G" or "LTE". I have yet to try the SIM in another phone yet but plan to tonight.
Just to help me out with my thought process on figuring out the issue I'm going to think out loud for a second:
Put my SIM in another phone and make sure 4G/LTE is on, check if it receives calls. If it works, the issue is my phone or ROM. If it doesn't work, SIM card is the issue.
Also, from what I understand, phones on 4G switch to 3G when a call comes in and my phone may not be doing that. Is there a fix for this?
EDIT: As additional info, I am able to make outgoing calls without issue on 4G.
Are you actually using AT&T as your cell provider?
Yes, and I made sure my APN settings are correct.
It's a known issue. AT&T's implementation of Voice over LTE (VoLTE) which they call "HD Voice" for some reason interferes with voice calls on custom ROMs on this device.
No real fix, aside from calling AT&T and asking them to turn off the HD Voice feature of your account. May need to ask for a 2nd Tier tech support to do it. Others here have posted they had to do that (and 1st Tier either had not clue what they were talking about, or wrongly claimed it can't be turned off).
Other threads discussing the issue:
https://forum.xda-developers.com/showpost.php?p=62001970&postcount=28
https://forum.xda-developers.com/htc-one-m8/help/receive-calls-make-detailed-thread-t3146670
https://forum.xda-developers.com/htc-one-m8/help/m8-receive-calls-flashed-wrong-rom-4g-t3365488
https://forum.xda-developers.com/htc-one-m8/help/phone-receiving-calls-help-appreciated-t3382019
Awesome. Thank you!
EDIT: Just finished working through the issue with an AT&T rep through online chat. Had me turn off my phone, disabled it on their end, and turned it back on. Did a test call and sure enough 4g switches to 3g as the call comes in and switches back afterwards. Problem Solved!
hi guys,
I'm having issues receiving calls when my preferred network is on LTE/3G/2G but I'm able to use data and receive SMS.
steps made trying to narrow down the issue:
• switching to 2G only network type allows me to receive calls
• swtiching to LTE/3G did nothing to resolve the issue
• went to phone info using *#*#4636#*#* and changing to Global auto prl allows me to receive calls but only if the voice network type is UMTS and data network type is HSPA switches from LTE.
• had my gf call me on LTE while looking in phone info (using *#*#4636#*#*), I can see network types changing from LTE to UMTS and HSPA respectively but still unable to receive calls though on my gf's phone is ringing on her end.
hope you guys could help!
*on android 8.1 btw
I had this exact problem, I restarted the phone and it fixed the issue. I also disabled and re-enabled WiFi calling. Let me know if it worked for you.
What network are you using?
thanks for the reply guys, called raser support and turned out to be my phone's modem has an issue. sending it for RMA tomorrow..
Hello Folks,
I have an unlocked (SIM) Moto Z2 Force from AT&T that I am using on Freedom mobile in Canada. All the radios frequencies align between the carriers.
Data works perfectly.
Text messaging works perfectly.
BUT I cannot make or receive calls.
If I dial, I get no dialing tones outbound. (NO RINGING)
The phone will not accept *#*#4636#*#* so I cannot fiddle with any of these settings.
Thoughts or directions? Anything would help.
CE
Can you make calls over 2G or 3G? By default VoLTE is enabled.
i found there is no voice call, when i chose LTE only in *#*#4636#*#* , unless LTE/WCDMA is selected
Interesting.
ilovemeow said:
i found there is no voice call, when i chose LTE only in *#*#4636#*#* , unless LTE/WCDMA is selected
Click to expand...
Click to collapse
I've tried to access *#*#4636#*#* many many times -- it does not work.
I will try to force it to LTE/WCDMA to see if this works.