[Q] Simultaneous Voice and Data GS3 T-Mobile - T-Mobile, Samsung Galaxy SIII

I have a GS3 with T-Mobile prepaid (60 a month) my Simultaneous Voice and Data is not working? is this a problem with the prepaid service? the Simultaneous Voice and Data will work for a few min's then cut off and i cant get data back until i end the call im on.
I'm running Cm10 Nightlights
I was on Simple mobile and had the same problem.
is this a phone problem, service problem, ROM problem? i thought T-Mobile supported Simultaneous Voice and Data?

Works great for me but makes sure you have 3g or better.
Sent from my SGH-T999 using Tapatalk 2

elesbb said:
Works great for me but makes sure you have 3g or better.
Sent from my SGH-T999 using Tapatalk 2
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Click to collapse
i for sure have 3G or better in my area, are you using the Prepaid service?

Amore514 said:
i for sure have 3G or better in my area, are you using the Prepaid service?
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Click to collapse
Since Tmobile using GSM network, it should be possible anyway. Did you try rebooting?

agm1101 said:
Since Tmobile using GSM network, it should be possible anyway. Did you try rebooting?
Click to expand...
Click to collapse
ya i have restarted, i also have tried 3 other ROMS beside CM

Related

[Q] Using the Modem of this X with ATT's X? Possible?

Just curious about this question - because I would really want to use this with T-Mobile.
So, a few days ago I noticed that an aquintance of mine was using an ATT Samsung Note with T-Mobile. I asked him - but you are only getting Edge (2G), right? So he says - "No! I flashed the GSM version modem, and I am getting HSPA+ (4G)", or whatever you call it.
I was shocked! Amazing solution.
Do we have this?
Thanks
No. The AT&T model is completely different in terms of SoC.. their radios will not work for us. You can do like I am and use it on T-Mobile with an accompanying hotspot. Really not bad.
Sent from my HTC One X using xda premium
joshnichols189 said:
No. The AT&T model is completely different in terms of SoC.. their radios will not work for us. You can do like I am and use it on T-Mobile with an accompanying hotspot. Really not bad.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Thank you ! So making calls, texts, MMS is all fine, but DATA will only work on EDGE (2G)?
Also, what is "hotspot"?
Thanks again!
benyben123 said:
Thank you ! So making calls, texts, MMS is all fine, but DATA will only work on EDGE (2G)?
Also, what is "hotspot"?
Thanks again!
Click to expand...
Click to collapse
Yes sir, and I have found 2G is not nearly as bad as I once thought. A hotspot is just a device that gets 3G and broadcasts it as a wifi signal that your phone can use for data. On the T-Mobile website they are under "Mobile Broadband"
Sent from my GT-P3113 using xda premium

Can you have 4g but not 3g and still send messages?

Is there a way to only have 4g lte and the radio for calling and texting or do you have to have 3g on as well. I have perfect 4g and don't need 3g on but I do need to text and all I see is 4g/cdma which turns up to me 3g and Lte only, can't send messages. Any helps appreciated.
Sent from my Galaxy Nexus
You did not specify what carrier you are on. If you are on verizon the answer is no, verizon still uses 3g for voice. I am not even sure this question applies to any other carrier except maybe sprint.
stickerbob said:
You did not specify what carrier you are on. If you are on verizon the answer is no, verizon still uses 3g for voice. I am not even sure this question applies to any other carrier except maybe sprint.
Click to expand...
Click to collapse
Doesn't sprint live off Verizon's Stuff???
Not sure. Member reading that.
4G LTE is data only.
xXDLD511Xx said:
Doesn't sprint live off Verizon's Stuff???
Not sure. Member reading that.
Click to expand...
Click to collapse
How would it? They are separate NATIONAL carriers, not regional.
Sent from my Galaxy Nexus using Tapatalk 2
So you wouldn't be able to have say, lte on and 1x radios on? This wouldn't be more batter efficient than 3g and lte?
Sent from my Galaxy Nexus
theking_13 said:
How would it? They are separate NATIONAL carriers, not regional.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
That has nothing to do with it. There for a time, Sprint was piggybacking off of Verizon to actually have decent coverage. This was EvDo and voice only however. This is still the case, but you will not be able to do the same with LTE.
joshpersaud said:
So you wouldn't be able to have say, lte on and 1x radios on? This wouldn't be more batter efficient than 3g and lte?
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
1x and EvDo are on the same radio. So you couldn't shut off just 3G, and the OS won't let you do LTE only either.
Nope.
Call, SMS, MMS use 3g
Only data uses 4g now.
Sent from my Galaxy Nexus using XDA
So why is it that when I turn off 3g I can still send messages?
Sent from my Galaxy Nexus
montbazon said:
Nope.
Call, SMS, MMS use 3g
Only data uses 4g now.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Close.
Calls, SMS use 1x which is a voice only channel.
MMS and the rest of data use 3G and LTE.
joshpersaud said:
So why is it that when I turn off 3g I can still send messages?
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Because the phone sending voice and messages through the GSM/CDMA/WCDMA (Depending on availability).
The 4G specifications arent complete as for yet, only the data mechanism has been approved.
joshpersaud said:
So why is it that when I turn off 3g I can still send messages?
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
You don't turn off 3G.

[Q] Does Mobile Data affect call quality?

I keep mobile data off most of the time.
Just wondering if it makes any difference in call quality.
Also between:
Gprs vs Edge vs 3G vs Hspa+
is there any noticeable call quality difference?
Hercules on TMo.
Thanks.
House3272 said:
I keep mobile data off most of the time.
Just wondering if it makes any difference in call quality.
Also between:
Gprs vs Edge vs 3G vs Hspa+
is there any noticeable call quality difference?
Hercules on TMo.
Thanks.
Click to expand...
Click to collapse
Nope. Data is data, phone and texts are handled separately.
Sent from my cell phone telephone....
No it doesn't affect data
kj2112 said:
Nope. Data is data, phone and texts are handled separately.
Click to expand...
Click to collapse
That's what I thought, but then, why are calling times rated by 3g vs 2g?
Like 16 hours of talk time on 3G and 30 hours on 2G.
What's that all about?
House3272 said:
That's what I thought, but then, why are calling times rated by 3g vs 2g?
Like 16 hours of talk time on 3G and 30 hours on 2G.
What's that all about?
Click to expand...
Click to collapse
3g uses more battery than 2g, obviously. You don't need data on at all to make phone calls.
House3272 said:
I keep mobile data off most of the time.
Just wondering if it makes any difference in call quality.
Also between:
Gprs vs Edge vs 3G vs Hspa+
is there any noticeable call quality difference?
Hercules on TMo.
Thanks.
Click to expand...
Click to collapse
Yes sir try using wifi calling and u will see the different
Sent from my SGH-T989 using Tapatalk 2
meekrawb said:
3g uses more battery than 2g, obviously. You don't need data on at all to make phone calls.
Click to expand...
Click to collapse
It's that much? Wow.
esema1o said:
Yes sir try using wifi calling
Click to expand...
Click to collapse
Any suggestions, for a wifi calling app that is?
House3272 Any suggestions, for a wifi calling app that is?[/QUOTE]
There is a lot of free apps on the Play Store for wifi calling.. But some do need ROOT access for it to work.. [my preference - most of the good ones will need root access ]
Sent from my SAMSUNG-SGH-T989 using xda premium
Maxninja said:
House3272 Any suggestions, for a wifi calling app that is?
Click to expand...
Click to collapse
There is a lot of free apps on the Play Store for wifi calling.. But some do need ROOT access for it to work.. [my preference - most of the good ones will need root access ]
Sent from my SAMSUNG-SGH-T989 using xda premium[/QUOTE]
https://play.google.com/store/apps/details?id=com.snrblabs.grooveip
Sent from my SAMSUNG-SGH-T989 using xda premium

[Q] Data issues with SGH-m919 using att

I unlocked my T-Mobile galaxy s4 and have been using it on AT&T for the post free months, since then I'm experiencing horrible data issues, can any one help?
Sent from my SGH-M919 using xda app-developers app
What is the horrible data issues that you're taking about? Please be more specific. More info would help is help you
☞Sent from here☜
ds337135 said:
I unlocked my T-Mobile galaxy s4 and have been using it on AT&T for the post free months, since then I'm experiencing horrible data issues, can any one help?
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Do you know if the tmobile m919 can receive 4g lte data on the att? thinking about unlocking mines as well just to have options
Sent from my SGH-M919 using Tapatalk 4
jjluv86 said:
Do you know if the tmobile m919 can receive 4g lte data on the att? thinking about unlocking mines as well just to have options
Sent from my SGH-M919 using Tapatalk 4
Click to expand...
Click to collapse
If i could piggy back off this thread, I also have a tmo s4 on att network. Yesterday I was with a friend who was also on att and I noticed his phone at that time had 4g where the network bars were located, mine however read H+. It was then I realized that I have never seen the 4g symbol on my phone ever. Do I just not get 4g? Or does this ROM that I have on my phone (slim bean) either not have the files for 4g or maybe its originally a T-Mobile ROM so I'm not getting 4g I don't know. I do get LTE tho.
projectpaki said:
If i could piggy back off this thread, I also have a tmo s4 on att network. Yesterday I was with a friend who was also on att and I noticed his phone at that time had 4g where the network bars were located, mine however read H+. It was then I realized that I have never seen the 4g symbol on my phone ever. Do I just not get 4g? Or does this ROM that I have on my phone (slim bean) either not have the files for 4g or maybe its originally a T-Mobile ROM so I'm not getting 4g I don't know. I do get LTE tho.
Click to expand...
Click to collapse
E is 2g/edge H is 3g H+ is 4g when you see 4g/lte that is LTE if your using and aosp based or international ROM... Hope that makes sense to ya
Sent from my SGH-M919 using Tapatalk
pyro43284 said:
E is 2g/edge H is 3g H+ is 4g when you see 4g/lte that is LTE if your using and aosp based or international ROM... Hope that makes sense to ya
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
Ok this makes sense, thanks.
I had the same issues. If your previous phone that you used on AT&T was only 3G (I had an iPhone 4), your SIM card is only configured to receive and transmit 3G data. You will need to go on to wireless.att.net and order a new 4G SIM card, or go to a store and have them program one for you. This is assuming that you have already signed up for one of the new data plans, if not, they will likely not issue a SIM card capable of 4G and will probably hound you via email and SMS about using a 4G device on an old 3G data plan.

Voice calls while on LTE?

When you make or get a voice call on LTE, does your phone disconnect from LTE and switch to 3g/H? Just wondering if this is normal?
sharklaser12 said:
When you make or get a voice call on LTE, does your phone disconnect from LTE and switch to 3g/H? Just wondering if this is normal?
Click to expand...
Click to collapse
Yes perfectly normal.
I believe its due to either LTE being Data only or LTE not being able to do Data and voice at the same time. I forget which one it is.
I think it's only data for now
Sent from my SGH-M919 using xda app-developers app
y2whisper said:
Yes perfectly normal.
I believe its due to either LTE being Data only or LTE not being able to do Data and voice at the same time. I forget which one it is.
Click to expand...
Click to collapse
It's actually because lte is being used as HD voice. I'm trying to disable HD voice to see if it changes the behavior.
Sent from my SGH-M919 using Tapatalk 2
LTE is data only for now. You're gonna have to wait for VoLTE (Voice over LTE)
SmiLey497 said:
LTE is data only for now. You're gonna have to wait for VoLTE (Voice over LTE)
Click to expand...
Click to collapse
That doesn't make sense though. If LTE is data only, then it would use LTE for data, and use 4G or anything else for voice, allowing you to have both voice and data.. Unless the radio can only support one frequency at a time then it would force it to use 4G or the next available frequency.
http://m.computerworld.com/s/articl...telephony_apps?mm_ref=https://www.google.com/
VoLTE will enable that... Right now the phones have to have two radios enabled at the same time... One for data and one got voice.
Sent from my SGH-M919 using xda app-developers app

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