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..
Related
EDIT: Sorry for posting in the wrong section, can a mod please move this thread?
Hi all,
I have a question regarding my Verizon Galaxy S4 i545 model. I purchased the phone unlocked out of the States, and now have it in Canada partially working on my carrier, SaskTel. The phone seems to work fairly well, except I'm having some issues with LTE/4G service.
Basically, if I set my network mode to "LTE/CDMA" I get a perfect LTE connection, fast speeds and it works well. However, when LTE is enabled, I'm unable to send/receive any type of text message, and I'm unable to make phone calls as well. The phone itself displays that I have no service, but I can still use LTE. I phoned up my carrier to see if they could help me figure the issue out, and they said it could be because Verizon tends to complete all phone calls, and send all texts over LTE. The support rep explained that with SaskTel, phones usually drop down to 3G connectivity for a few moments when sending texts, or making a phone call, because SaskTel does phone calls and texts over 3G.
However, if I set my network mode to "GSM/UMTS" I receive a data connection through HPSA+, and can text and phone people as well. Obviously this isn't an ideal situation, because HPSA+ speeds are quite slow. (1-3Mbps download) I have found a sort of fix to this issue. To temporarily fix it, here's what I do:
-Set network mode to "GSM/UMTS"
-Clear the "Messaging" app cache
-Restart the phone
-Set network mode to "LTE/CDMA"
Then the phone can use LTE and still text and make phone calls. However if it ever loses connection, or if I enable airplane mode, once the phone regains connectivity, I have no service, but can still use LTE data.
Do you guys have any ideas of what might be causing this? I thought it might be a modem issue, but I figured most people here would know more than me on this topic. (this is my first Android device, and I've had it for about four days now)
Here are some things I've tried doing to fix the issue:
-Pop out SIM card and pop it back in
-Test different APN settings for my carrier given to me by my carrier
-Test the phone with a different SIM card from the same carrier
-Reset phone to factory defaults
None of these made any difference at all to the issue, and it seems that my "temporary fix" seems to be the only way to fix this issue. Any advice on this issue would be appreciated!
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!
Hello, I bought an S7A on eBay. I unlocked it with the GSM unlock code provided. Everything works fine, except ... I can't make or receive calls. When I make a call, no ringing tone, and it hangs up 20 seconds later. When someone calls me, the same, then they come across my answering machine.
I'm on the latest version of Oero available, no root or whatever. From what I saw (on GSMArena), the phone uses compatible frequencies in France.
I am at carrier Bouygues Teelcom.
You have any ideas ? Thank you !
PS: I translate from French, please be indulgent!
Same problem, this phone does not work in China
Since then I have understood the real problem: the phone cannot switch from the 4G network to the 2G network for calls on its own.
I don't know how I did it, but now I can make calls without any problem, but switching to 2G is very long (15 s).
I specify that it is impossible to use VoLTE to circumvent this problem.
For receiving calls, the phone does not switch to 2G and the incoming call still fails.
But I can force the 2G network (With the Samsung Band Selection app). And there, incoming calls work, but we only have 2G to surf.
When connected to WIFI, the phone automatically forces the mobile network to 2G, so incoming calls work without the application mentioned before.
Hello, first of all I want to say that my native language is Spanish and I am using the Google translator to write this, so there may be writing errors and apologize.
Buy a motorola edge x30 and the imported import from China. The phone is unlocked to be used with GSM networks from anywhere in the world. When I bought it, I was with Metro PCS but in Metro I was told that the phone was not compatible with the 3G networks of them. After that I started to investigate and find a web page called kimovil and there I saw that the edge x30 was compatible in the USA with all the networks of 3 suppliers: Cricket, AT & T and T-Mobile: I choose to use change to metro by T-Mobile.
Immediately I left the T-Mobile store after making the change I have tried and could receive and send SMS, receive and make calls, and get access to the Internet without any problem. After a couple of hours of having activated services with T-Mobile, the phone could not or receive more calls (the Internet and SMS continue to work normally, the problem is only with calls). When I try to call someone, the call is not done and says "Hanging Up". I tried everything: Factory Reset, Networks Reset, modify network configuration, everything ... and I can not solve the problem. I went to T-Mobile to tell you about my problem and they tell me that the problem is not them but my phone.
If anyone knows how to solve this problem, I would greatly appreciate the help because I feel frustrated. Thanks
I have MOTO EDGE x30 with T-Mobile. Work perfectly. Check the SIM setting.
[email protected] said:
I have MOTO EDGE x30 with T-Mobile. Work perfectly. Check the SIM setting.
Click to expand...
Click to collapse
Good afternoon. I already managed to use the Edge X30 with the T-Mobile network. You just had to put the network selector on automatic so that you can use 5G, LTE, 3G and 2G as you see fit. The problem is that I realized that the phone only calls and receives calls in 3G and 2G, which limits not only the quality of the calls but also limits your coverage to be able to make calls since you can only make them in 3G and 2G . You who also use T-Mobile, does the same thing happen to you?
I'm not sure, but it supports 5G in N1/N3/N5/N7/N8/N20/N28/N38/N41/N78 and 4G in B1/B2/B3/B4/B5/B7/B8/B12/B17/B34/B38/B39/B40/B41. or check volte settings.
you may try to install "carrier services" app by google from the play store. it solves some of my problem with data connection.
jorgerios15 said:
Good afternoon. I already managed to use the Edge X30 with the T-Mobile network. You just had to put the network selector on automatic so that you can use 5G, LTE, 3G and 2G as you see fit. The problem is that I realized that the phone only calls and receives calls in 3G and 2G, which limits not only the quality of the calls but also limits your coverage to be able to make calls since you can only make them in 3G and 2G . You who also use T-Mobile, does the same thing happen to you?
Click to expand...
Click to collapse
Yes I have the same issue. Whenever I make or receive voice calls, the phone falls back from LTE to 2G. I looked everywhere on the phone for 'VOLTE' settings but could not find it. Does VOLTE work for this phone on Tmobile? Very frustrating.
Has anyone been able to find the solution for the calls switching back to 2g? I love the phone but this is extremely annoying. I'm on T-mobile. Thank you