Develop Bugs

Can't receive calls when using Data network

I'm using T-Mobile HTC Touch Pro 2 on AT&T network and cant receive calls when I'm on data network (read browsing, facebook app, slacker radio app).
I'm on AT&T EDGE. Is there anything that can be done to avoid this? Thanks.

blueguy19 said:
I'm using T-Mobile HTC Touch Pro 2 on AT&T network and cant receive calls when I'm on data network (read browsing, facebook app, slacker radio app).
I'm on AT&T EDGE. Is there anything that can be done to avoid this? Thanks.
Click to expand...
Click to collapse
The problem is that when you're using your T-mobile phone on the AT&T network, your data connection is through EDGE, not 3G...and one of the drawbacks to EDGE is that you can't have an active data connection at the same time as an active phone call.
It's a hardware restriction, caused by the different 3G bands AT&T and T-mobile use. Your only real solution would be to get an AT&T-branded phone so you can use their 3G bands, or start using t-mobile's network with your TP2 so you can use their 3G.

sirphunkee said:
The problem is that when you're using your T-mobile phone on the AT&T network, your data connection is through EDGE, not 3G...and one of the drawbacks to EDGE is that you can't have an active data connection at the same time as an active phone call.
It's a hardware restriction, caused by the different 3G bands AT&T and T-mobile use. Your only real solution would be to get an AT&T-branded phone so you can use their 3G bands, or start using t-mobile's network with your TP2 so you can use their 3G.
Click to expand...
Click to collapse
Agreed that you can't do both at the same time, but it sounds like the phone should still automatically suspend the data session to take the phone call. Sounds like an application is forcing the data connection to stay active, what programs do you have installed?

Toleraen said:
Agreed that you can't do both at the same time, but it sounds like the phone should still automatically suspend the data session to take the phone call. Sounds like an application is forcing the data connection to stay active, what programs do you have installed?
Click to expand...
Click to collapse
I think it would be nice if it worked that way....but that's not how it's been for me. Maybe there's a registry setting that makes it one way or the other, but on the custom roms I've used it doesn't work the "nice" way. Calls go to voice mail if I'm actively accessing/transferring data (on an EDGE connection).
Are you saying that your TP2 actually does suspend the data session -- from personal experience? Or just that it should be that way?

MCbrian said:
I think it would be nice if it worked that way....but that's not how it's been for me. Maybe there's a registry setting that makes it one way or the other, but on the custom roms I've used it doesn't work the "nice" way. Calls go to voice mail if I'm actively accessing/transferring data (on an EDGE connection).
Are you saying that your TP2 actually does suspend the data session -- from personal experience? Or just that it should be that way?
Click to expand...
Click to collapse
I can't say for sure on my TP2 as I've generally got 3G coverage everywhere I go. When I was using my 8525 I specifically remember being impressed the first time I was in the middle of a download and it recovered after taking a phone call, was definitely a custom ROM too. Probably was WinMo 6.0 at that time though.

When you are using data and recieve a call it should stop data and allow the call to go thru when you are using EDGE. Since you are using a none AT&T device they probably wont fix the issue unless you reproduce the issue with an AT&T device. Also i tested this on my TMO TP2 by loading a website and making a call to my TP2 at the same time and it stopped my data as the call came thru then when i ignored the call it continued to load the website.

Sik96teG said:
When you are using data and recieve a call it should stop data and allow the call to go thru when you are using EDGE. Since you are using a none AT&T device they probably wont fix the issue unless you reproduce the issue with an AT&T device. Also i tested this on my TMO TP2 by loading a website and making a call to my TP2 at the same time and it stopped my data as the call came thru then when i ignored the call it continued to load the website.
Click to expand...
Click to collapse
It may depend on other factors then -- like maybe what rom you're running. After I posted above I tested this again -- to confirm what I posted, by starting the download of a very large file. I then called my phone from a landline and sure-enough the call went to VM after a few rings. So, maybe just a characteristic of my ROM, but it's definitely true for me on T-Mo USA (on EDGE). When I stopped the download my phone received calls just fine, so it's not a general receiving-calls issue.
Tomorrow when I'm at work -- and have a full-strength 3G connection -- I'll try it again to confirm that it does receive during 3G data. I've done that test before -- I've received calls with my laptop tethered to the TP2 on 3G and kept the data connection and received the call, but I haven't tried with the rom I'm currently running.

Sik96teG said:
When you are using data and recieve a call it should stop data and allow the call to go thru when you are using EDGE. Since you are using a none AT&T device they probably wont fix the issue unless you reproduce the issue with an AT&T device. Also i tested this on my TMO TP2 by loading a website and making a call to my TP2 at the same time and it stopped my data as the call came thru then when i ignored the call it continued to load the website.
Click to expand...
Click to collapse
I experienced the same thing with my EDGE-only Wizard (8125) on AT&T...incoming calls would be routed straight to voicemail if I had an active data connection going. And, whenever I would try to make an outgoing call, I would get an error message telling me that I couldn't make the call until I closed the data connection.
We all agree that EDGE can't multi-task like that, so to speak...but I think the issue of prioritizing or not prioritizing voice over data is handled at the device level, and/or by carrier control, rather than as a function of what the network can/can't do. My guess at this point is that there might be a reg setting that controls giving calls default priority at all times, but I have no idea what/where it is

sirphunkee said:
but I think the issue of prioritizing or not prioritizing voice over data is handled at the device level, and/or by carrier control, rather than as a function of what the network can/can't do. My guess at this point is that there might be a reg setting that controls giving calls default priority at all times, but I have no idea what/where it is
Click to expand...
Click to collapse
Yeah, that's what I was thinking....well, guessing really -- I don't know. But I know what my experiment showed. A registry setting could explain why it would work for some and not others. Or could a different radio-rom possibly make a difference?
I have no idea.

MCbrian said:
Yeah, that's what I was thinking....well, guessing really -- I don't know. But I know what my experiment showed. A registry setting could explain why it would work for some and not others. Or could a different radio-rom possibly make a difference?
I have no idea.
Click to expand...
Click to collapse
Now that you mention it, my money is on the radio (don't know why I didn't think of that).
blueguy, what radio are you using? And for that matter, what ROM? ATT, Tmo, or...? I'll test it on mine just like MCbrian did, since I have a different radio (.14), once I recall how to force my toy into EDGE-only mode. so, tomorrow morning
EDIT: sik96teg, same question to you...what radio/ROM are you using?

right now im on 4.49.25.57(i believe this is the stock tmo 6.5) radio and i have tried a few other radios over the last few monthes(never really tested them but dont recall this issue). i use to be on an energy rom and now im on leo cell evo rom. Also when i did have this issue a long time ago i called tmobile and they stated at the time it was a known issue and it was suppose to be resolved in a few days and a few days later it started to work. I also made about 10 calls and only one of them didnt come thru to the phone. My home phone rang for about 30 secs then went to vm but no indicator on the device but that only occured 1 out of 10 tries.

MCbrian said:
Tomorrow when I'm at work -- and have a full-strength 3G connection -- I'll try it again to confirm that it does receive during 3G data. I've done that test before -- I've received calls with my laptop tethered to the TP2 on 3G and kept the data connection and received the call, but I haven't tried with the rom I'm currently running.
Click to expand...
Click to collapse
Just confirming what I thought: On a 3G data connection, data-transfer continues and the voice call is received simultaneously, as it should.

Thanks for your inputs and my answers
I'm using Tmobile ROM which upgraded me from WinMo 6.1 to WinMo 6.5. I'm not sure what was the radio on it. But I flashed it with Hard-SPL and then with 4.49.25.88 Radio.
Even then the issue still persists
I read somewhere it happens due to NOM1 and NOM2 kind of EDGE network. NOM1 has capabilities to suspend data connection and give preference to phone call, NOM2 doesnt support this behavior. It seems AT&T is using NOM2 in my area. I'm not sure though if this is causing the issue that I'm experiencing.
I called AT&T Technical Support and they said they see my phone as Unkown device and can' support it.
Please this is really annoying, any help is appreciated.

Same here, I am currently with the new official (ok better leaked) ROM and the Radio that was provided (the latest).
The point is that when I am on 3G i can receive both data and calls which is obvious. Now after reading this thread I noticed that when I am on standard GSM and someone calls me, they get notified that my phone is switched off.
What is weird is the fact that there should have been an option to state Call over Data or the opposite for that matter. I think my old Nokia N95 had a similar option.
So, yeah, is that a bug or a feature?

i'm just guessing...but, I believe the simultaneous data/call is a function of 3G .....EDGE is the bare-bones basic thing....
at least that's how they make it sound in the commercials
....i should have read the replies in the thread...

stormrain said:
when I am on standard GSM and someone calls me, they get notified that my phone is switched off.
What is weird is the fact that there should have been an option to state Call over Data or the opposite for that matter. I think my old Nokia N95 had a similar option.
QUOTE]
When I tested this (on EDGE) by calling my TP2 from landline it went to voicemail. Another time I was on EDGE and someone tried to call me and they had your experience: "Out of area/unreachable". And this was within 24 hours, on the same rom without changing any setting (at least, not on purpose).
I've never seen an option to set data/voice priority.
Click to expand...
Click to collapse

I flashed Energy ROM with .88 radio, it did improve download speed. But still don't receive calls while using data.
Is there any other ROM which allows this?

The Rhodium isn't capable of simultaneous data and voice.
You should have a GPRS Class A phone, but that should have 2 antennas. (See link)
So only one of them is active, data OR voice.
But normally it should pause the data connections and give priority to the voice connection.

ronh said:
The Rhodium isn't capable of simultaneous data and voice.
You should have a GPRS Class A phone, but that should have 2 antennas. (See link)
So only one of them is active, data OR voice.
But normally it should pause the data connections and give priority to the voice connection.
Click to expand...
Click to collapse
I believe it IS capable, if you are on 3G data. Not if you are EDGE / GPRS.

ronh said:
The Rhodium isn't capable of simultaneous data and voice.
You should have a GPRS Class A phone, but that should have 2 antennas. (See link)
So only one of them is active, data OR voice.
But normally it should pause the data connections and give priority to the voice connection.
Click to expand...
Click to collapse
stevedebi said:
I believe it IS capable, if you are on 3G data. Not if you are EDGE / GPRS.
Click to expand...
Click to collapse
Yes -- it absolutely is, as stevedebi states, on 3G. So the limitation on EDGE isn't the phone, really, it's the nature of EDGE/GPRS.

no 3g/4g while calling... normal or weird?(cdma)

So everytime I call someone or receive a call,
the 3g on the status bar disappears instantly.
right after I end the call,
I have signal again immediately.
is this suppose to happen to Verizon phones?
I'm confused because I came from at&t. never had such thing on it.
So is Verizon suppose to be like this?
if so is there any mod/tweak that enables me to use data while calling?
Sent from my Galaxy Nexus using XDA

bluemoon1221 said:
So everytime I call someone or receive a call,
the 3g on the status bar disappears instantly.
right after I end the call,
I have signal again immediately.
is this suppose to happen to Verizon phones?
I'm confused because I came from at&t. never had such thing on it.
So is Verizon suppose to be like this?
if so is there any mod/tweak that enables me to use data while calling?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Yes, this is supposed to happen. You can't do voice + data over 3g, but you can do voice + data over 4g. There is no "mod" available for that will enable the use of data while in a call on 3g.

Verizon is CDMA, which doesn't offer simultaneous voice/data like GSM does. Unless your phone has SVDO (like the Thunderbolt) it won't do data and talk at the same time over 3G... The VZW GNex doesn't have SVDO.
For the longest time this has been a pain for CDMA carriers (the few that are left) and they're gonna get past it with VoLTE eventually. You'll still see AT&T run ads comparing their iPhone to the VZW iPhone because it can do voice+data at the same time.
If you're on LTE, you can browse LTE data and talk on 3G at the same time, however.

maguro user here. i was talking about this with a work colleague yesterday, and i said data didn't work at the same time as voice, only with gprs/edge. he had me call his cellphone, while on UMTS/3g/H, and data call was still on as i made the call, and let the phone ring a few times.

[Q] data lost while on call

when i am on a call i cant not see to get data...the data connection turns off by itself and when the call ends data connection will come back on? is it suppose to be like that or is there something wrong with the phone. right now im on software 1.28.708.10. thanks

marktang said:
when i am on a call i cant not see to get data...the data connection turns off by itself and when the call ends data connection will come back on? is it suppose to be like that or is there something wrong with the phone. right now im on software 1.28.708.10. thanks
Click to expand...
Click to collapse
Happens to me too I believe my frined.
It only happens with mobile data though.
If you are on Wifi, the wifi should NOT disconnect right?

ya if it is on wifi then it is ok. not data connection though

I believe that the phone switches to 2g during calls, and not sure whether this is a telco setting that they do not allow calls through 3g, or a software feature of the phone with the reasoning that 2g signals are generally stronger in most parts of the world compared to 3g.

Just fyi i had the same issue on my "old" Desire HD.

ArmedandDangerous said:
I believe that the phone switches to 2g during calls, and not sure whether this is a telco setting that they do not allow calls through 3g, or a software feature of the phone with the reasoning that 2g signals are generally stronger in most parts of the world compared to 3g.
Click to expand...
Click to collapse
It might be carrier specific. I have no trouble getting (and keeping) HSPA data when I'm in a call.

which version do u have Barry? I am using the international version on rogers. Are you using the at&t version?

BarryH_GEG said:
It might be carrier specific. I have no trouble getting (and keeping) HSPA data when I'm in a call.
Click to expand...
Click to collapse
Then I believe it to be carrier specific then since the software governing these kinda things should be standard across the board

marktang said:
which version do u have Barry? I am using the international version on rogers. Are you using the at&t version?
Click to expand...
Click to collapse
A UK international version on AT&T.

Ok that is so strange. I have the Hong kong version on rogers network. It never happened to me before and I have used a lot of HTC and unlocked phones before.
Sent from my HTC One X using XDA

ok so i dont think its the carrier cuz i reset the phone and it works sometimes now. if i make a call and browse right away then it will work but if i leave it for too long then it wont work.

marktang said:
ok so i dont think its the carrier cuz i reset the phone and it works sometimes now. if i make a call and browse right away then it will work but if i leave it for too long then it wont work.
Click to expand...
Click to collapse
guys its because the phone calls you make are on a 2g bandwidth unless its a video call, that's why if you have 2g connection or EDGE active it will get disabled as soon as you make a call.
to clarify, force your network settings to wcdma and then connect to 3g, after that make a call and your 3g will not be disconnected

gunswordx said:
guys its because the phone calls you make are on a 2g bandwidth unless its a video call, that's why if you have 2g connection or EDGE active it will get disabled as soon as you make a call.
to clarify, force your network settings to wcdma and then connect to 3g, after that make a call and your 3g will not be disconnected
Click to expand...
Click to collapse
i tried this and the 3g was displayed in notification bar.. but when i use this as hotspot, i hardly get connected to internet in my laptop (connected to phone) even the 3g was displayed.. this is really bring me down.. as i need to use hotspot while on travel and had conversation at the same time..
is there any other way to solve this?
thanks

Yup got it to work. Thanks.
Sent from my HTC One X using xda premium

marktang said:
Yup got it to work. Thanks.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Hi Marktang... I saw your post from Google as I lost data connection during phone call with my Galaxy S2.
May I know is it after configure the Network Mode inside the setting to use WCDMA only, then the problem will be solved?
Thank you...

[Q] Voice calls and data at the same time?

Hello,
I just got this phone yesterday. Upgrading from HTC Evo 4g LTE.
Today I was on a conference call and tried to access the web and could not. I noticed I did not have the LTE or any indication of mobile data networking ( associated icons). Does this phone handle voice and data at the same time ( not on wifi ).
If not I will have to return this in disbelief.
Thanks
Mike

Please close this thread. After searching i found this thread:
http://forum.xda-developers.com/note-4-sprint/help/simultaneous-voice-data-t2893885
Doesn't seem like you can use data and voice together. A work around looks like hangouts dialer. I just downloaded it. Error " phone calling is not supported for this account with this version of hangouts ". Guess i'll have to use the search field to see what/if anything can be done.

Even though I got that error message I was able to make a call. Worked on Wifi and LTE network....this might work out.....

mike929 said:
Even though I got that error message I was able to make a call. Worked on Wifi and LTE network....this might work out.....
Click to expand...
Click to collapse
This is a Sprint Spark limitation. All Sprint Spark phones are limited to 1 radio at a time, so you can't have 1 channel running voice and another running data. When you are making a voice call your phone drops down to 1xRTT. The up side is better battery life and the ability to use 800mhz, 1900mhz and 2500mhz LTE (one at a time), the down side is no Simultaneous Voice and Data (unless you are on WiFi).
In the long term everyone will move to Voice over LTE, which will allow data and voice simultaneously again. There is no time frame for this yet with Sprint and the Note4 was listed in the FCC specs as not supporting VOLTE.

Do all new sprint phones have spark? Any time frame for volte?

I had heard whether it's true or not Intel late 15 early 16 for the start of roll out of volte.
Sent from my SM-N910P using Tapatalk

Thanks everyone. Guess i will have to see if i can do without data while using voice.

Get a note3 pretty close to the same phone ya I know there are some major difference but if u really need date and voice that will be way more important than any lil difference between phones
Sent from my SM-N910P using Tapatalk

Thanks @sliverr7x, I would do that, but i want the newest available phones.

Radio problems.

So, i'm in the UK with my nice shiny OP3 (on Three UK) - I am rooted with twrp, but same applies on stock.
The radio in this phone seems to prefer H+/3G to 4G, even though where i live, i have full bars on both. My nexus 5 always prefered 4G, and the OP3 is set to prefer 4G but 90% of the time drops to 3G/H+
Another interesting thing, if i use the testing menu to force LTE only, even if it's on 4G already, completely stops any signal getting through for a number of minutes until it decides to connect sometime later. I have full LTE signal in my room too.
Is this a radio problem that could be solved in the future with a software update? not seen anyone else with this issue!
FYI, when it is on 4G, it's super fast and stays connected until a reboot, where the whole process starts again
Norman

manor7777 said:
So, i'm in the UK with my nice shiny OP3 (on Three UK) - I am rooted with twrp, but same applies on stock.
The radio in this phone seems to prefer H+/3G to 4G, even though where i live, i have full bars on both. My nexus 5 always prefered 4G, and the OP3 is set to prefer 4G but 90% of the time drops to 3G/H+
Another interesting thing, if i use the testing menu to force LTE only, even if it's on 4G already, completely stops any signal getting through for a number of minutes until it decides to connect sometime later. I have full LTE signal in my room too.
Is this a radio problem that could be solved in the future with a software update? not seen anyone else with this issue!
FYI, when it is on 4G, it's super fast and stays connected until a reboot, where the whole process starts again
Norman
Click to expand...
Click to collapse
Check your APN.

papi92 said:
Check your APN.
Click to expand...
Click to collapse
APN Is exactly the same as my nexus 5, and i even added a new one. Same deal.
I'm an IT Professional, just not a developer. i've done everything i can think of. 4G does work, but only when it wants to. My phone is also registered with my carrier correctly.

Bump on this anyone?

I am having a similar problem I guess. I have the dual sims installed and one sim randomly shows no range. Further, the network preference is not the way it is supposed to be - Chose it as 4G and if 4G is not detected it falls back to 2G.

Same issue forcing lte fixes lte for me but then no calls come through
Sent from my OnePlus 3

dkotoric said:
Same issue forcing lte fixes lte for me but then no calls come through
Sent from my OnePlus 3
Click to expand...
Click to collapse
Same as you. Anyone know how to fix the network priority to lock onto LTE first and then drop to 3G for calls?
Sent from my unknown using XDA-Developers mobile app

cdkg said:
Same as you. Anyone know how to fix the network priority to lock onto LTE first and then drop to 3G for calls?
Click to expand...
Click to collapse
I did notice when I do have LTE it's fine but it won't re lock onto LTE after a call on Three where it has to drop to H

I'm having a problem where the phone catches 4G+ "carrier aggregation" and it'll jump from to 4g+ to 4g and back to 4g+ really fast like almost flashing . And speed test are showing low numbers. T-Mobile USA.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app

Same here. Sometimes it just locked to 3g/h+ in a strong LTE area for no reason. I'm on stock oos with one sim and 1 apn. Sometimes I need to reboot the phone to get LTE back.
Sent from my Pixel C using XDA-Developers mobile app

I first put my sim into slot 1 when I first got the device, I was having the exact same issue. I found that the data priority sim, or if you only have one sim needs to be in sim slot 2.

mrnovanova said:
Same here. Sometimes it just locked to 3g/h+ in a strong LTE area for no reason. I'm on stock oos with one sim and 1 apn. Sometimes I need to reboot the phone to get LTE back.
Click to expand...
Click to collapse
Yes exactly. And even then it doesn't show up straight away despite 3/4 and usually full signal. Sometimes just putting it into standby mode and leaving it 20mins can sort it... Until I get another call lol. Wondering if it's just a software or firmware issue that could be patched. Lte is fine it's just never preferred despite the options being set

papi92 said:
Check your APN.
Click to expand...
Click to collapse
APN is not the universal response. Here he faces a problem of inaccurate network type choice, APN is only to have acces to internet through the provider's proxies. It's a radio problem clearly, the baseband is probably to be corrected by OnePlus.
It's really a strange thing to see those network type issues, MMS issues are still present after all those years.

Striatum_bdr said:
APN is not the universal response. Here he faces a problem of inaccurate network type choice, APN is only to have acces to internet through the provider's proxies. It's a radio problem clearly, the baseband is probably to be corrected by OnePlus.
It's really a strange thing to see those network type issues, MMS issues are still present after all those years.
Click to expand...
Click to collapse
This is what I thought. It's probably an easy fix for oneplus or rom developers. Custom radios are nothing new. Let's hope so anyway!

This is happening to me as well. I'm on three in a strong 4G area but it always prefers 3G it's so annoying hope it gets fixed soon.
Sent from my ONEPLUS A3003 using Tapatalk

same problem here.
i tested op3 with 3 different carriers
on two of them - lte no problem, instant connect...
on third sim - slow connection, frequent out of range. almost no lte.
tested third sim on iphone - instant lte connect, no problem.
seems like a incompatibility with an selected cellular operators.

DrSun said:
same problem here.
i tested op3 with 3 different carriers
on two of them - lte no problem, instant connect...
on third sim - slow connection, frequent out of range. almost no lte.
tested third sim on iphone - instant lte connect, no problem.
seems like a incompatibility with an selected cellular operators.
Click to expand...
Click to collapse
Could be but I'm doubting it. OP3 Has full support at least for my carrier on both bands they use (3 & 20).. Never know, the devs here will figure it out if oneplus don't

So i am in Germany right now using Vodafone with LTE enabled and enough datavolume but i am surfing with 2g speed. What is this? Checked the apn and everything is fine. On my S5 i am flying through the net ...
---------- Post added at 03:00 PM ---------- Previous post was at 02:58 PM ----------
erdock said:
So i am in Germany right now using Vodafone with LTE enabled and enough datavolume but i am surfing with 2g speed. What is this? Checked the apn and everything is fine. On my S5 i am flying through the net ...
Click to expand...
Click to collapse
Even loading google is a struggle

Same issue here, have never got it to say 'LTE' for me since I got the phone, best it does is 4G whilst my Galaxy S5 would happily pickup LTE. Just wondering what UK users have there preferred network type set to? Mine is on GSM/WCDMA/LTE I assume that is right as that is what it went to itself and have tried LTE or LTE/WCDMA too.

RetroFlux said:
Same issue here, have never got it to say 'LTE' for me since I got the phone, best it does is 4G whilst my Galaxy S5 would happily pickup LTE. Just wondering what UK users have there preferred network type set to? Mine is on GSM/WCDMA/LTE I assume that is right as that is what it went to itself and have tried LTE or LTE/WCDMA too.
Click to expand...
Click to collapse
Sorry, i mean my OP3 shows LTE in statusbar but it runs with 2G speed