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3G Data and Talk at the same time!

Anyone notice that you can Talk+Surf at the same time when on 3G-mode ???
I noticed this the other day when their 4G was down for the entire day!!
This is the only Verizon phone that can do it!!!

Yes sir, that is one of cool features of VZW's LTE network.
Although I rarely use it, it is nice to have

jj3699 said:
Yes sir, that is one of cool features of VZW's LTE network.
Although I rarely use it, it is nice to have
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Agreed since I never really use my phone for talking I find very little need but it really just gives me another reason to love this amazing phone.
Sent from my ADR6400L using XDA App

The reason we are able to do it on 3G as well is because the Thunderbolt has two different antennas. One is for the LTE/3G and one is for the 1X/Text messaging. Because it has the two different ones that's why we will be able to talk and surf. The Bionic may be cancelled because the antennae is not working well with the tegra. And the Samsung Charge will only be able to talk and surf in a 4G area. If you are on 3G you won't be able to talk and surf. So it's a cool feature that hTc has right now. The information is based off of the review of the ThunderBolt below with a couple of bits from what I have been reading.
http://www.anandtech.com/show/4240/htc-thunderbolt-review-first-verizon-4g-lte-smartphone

My friend says he can talk and surf on his Verizon iPhone
Luke

lukesdiesel said:
My friend says he can talk and surf on his Verizon iPhone
Luke
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Click to collapse
Then he's lying. Unless he's using WiFi
Sent from my ADR6400L using XDA App

I just realized this yesterday, and it made me SO happy! I've got mad love for my T-Bolt right now!

blackmanx (Twitter's most popular Verizon network engineer) said it was because the Bolt uses SVDO instead of EVDO for it's 3G. This makes it possible to talk and surf at the same time over 3G. So the Bolt is only using the one radio when talking and surfing on 3G
As for 4G, LTE uses a separate radio, but LTE allows for this simultaneous function anyway
And no, the Verizon iPhone very much cannot use this functionality, nor can any other phone currently on Verizon's lineup. You need to go to a GSM network if you want this on any other phone when using 3G

dahotz said:
The reason we are able to do it on 3G as well is because the Thunderbolt has two different antennas. One is for the LTE/3G and one is for the 1X/Text messaging. Because it has the two different ones that's why we will be able to talk and surf. The Bionic may be cancelled because the antennae is not working well with the tegra. And the Samsung Charge will only be able to talk and surf in a 4G area. If you are on 3G you won't be able to talk and surf. So it's a cool feature that hTc has right now. The information is based off of the review of the ThunderBolt below with a couple of bits from what I have been reading.
http://www.anandtech.com/show/4240/htc-thunderbolt-review-first-verizon-4g-lte-smartphone
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So does this mean that our calls don't ever go through 3GEV or LTE, and always 1x?
Reason I ask, is in the 2 weeks that I had the TBolt, the clarity of my calls seem inferior compared to my nexus one on T-Mo 3G, like the person on the other end sounds muffled. Not sure about others, but thats been my experience so far.

ramborami said:
Anyone notice that you can Talk+Surf at the same time when on 3G-mode ???
I noticed this the other day when their 4G was down for the entire day!!
This is the only Verizon phone that can do it!!!
Click to expand...
Click to collapse
Proud of you

actually it IS possible. but only on the eHRPD network. it is 3G and you can talk and surf. The thunderbolt is the only device with it that i know of. you dont need to be in 4G LTE area to get it.

does the voice use LTE or just data?

Never bothered to look this up and can't find any info on AT&T ...
Sent from my MB865 using Tapatalk 2

Lte is just for data. 2g/3g is data and voice.
Sent from my SGH-I777 using XDA

At some point when ATT has migrated all of their coverage to LTE capability the network will switch to LTE for voice. Neither ATT or Verizon use LTE for voice calls yet.
Likely within a decade they will turn off their traditional TDMA based GSM voice network altogether and everything will be on their LTE spectrum.
sassafras

I'm wondering if they'll throttle LTE during phone calls as well. Hmmmmm

pretty sure they only use gsm for calls, as people without data plans that have smartphones (dont know why they do that ) still make calls and text, just cant access teh interwebz

MattMJB0188 said:
I'm wondering if they'll throttle LTE during phone calls as well. Hmmmmm
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You will get 2g/3g during calls.
Sent from my SAMSUNG-SGH-I717 using xda premium

nunyabiziz said:
You will get 2g/3g during calls.
Sent from my SAMSUNG-SGH-I717 using xda premium
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No you didn't get it. Even without LTE they slow down any connection when on a phone call to save bandwidth. You can be getting 6 mbps down and then make a phone call and barely hit one and the upload is like 0.00mbps.
Test it out. Immsuremit will be like that once LTE is voice enabled.

bimmerd00d said:
Never bothered to look this up and can't find any info on AT&T ...
Sent from my MB865 using Tapatalk 2
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The current deployments of LTE are based on the LTE Release 8 with LTE used for data and 3GPP/3GPP2 (i.e. GSM/UMTS/CDMA/EVDO) for voice.
This will all change when the carriers move to the VoLTE (Voice over LTE), which is most likely a few years away.

enigma00 said:
This will all change when the carriers move to the VoLTE (Voice over LTE), which is most likely a few years away.
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Yes, from what I understand, there is no standard yet for Voice over LTE, the various stakeholders are still working this out, and its still a long ways away.
So for the present time (and near future), LTE is data only (and no voice) on all carriers.

MattMJB0188 said:
No you didn't get it. Even without LTE they slow down any connection when on a phone call to save bandwidth. You can be getting 6 mbps down and then make a phone call and barely hit one and the upload is like 0.00mbps.
Test it out. Immsuremit will be like that once LTE is voice enabled.
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So are you agreeing or disagreeing with my statement? Sounds like you are disagreeing, if so how is what you just posted different from mine?
Sent from my SAMSUNG-SGH-I717 using xda premium

nunyabiziz said:
So are you agreeing or disagreeing with my statement? Sounds like you are disagreeing, if so how is what you just posted different from mine?
Sent from my SAMSUNG-SGH-I717 using xda premium
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I wasn't agreeing or disagreeing. I was stating something entirely different from the OP.
Its not widely known that AT&T throttles all data speeds during calls and I was being sarcastic by adding that once you can do LTE over voice, they'll throttle that too during calls only.
Run a speedtest next time your on the phone and you'll see. Doesn't matter what data plan you have, they throttle all data speeds during calls.

MattMJB0188 said:
I wasn't agreeing or disagreeing. I was stating something entirely different from the OP.
Its not widely known that AT&T throttles all data speeds during calls and I was being sarcastic by adding that once you can do LTE over voice, they'll throttle that too during calls only.
Run a speedtest next time your on the phone and you'll see. Doesn't matter what data plan you have, they throttle all data speeds during calls.
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Agreed, I told At&t that i wanted to cancel my service because Im paying for hotspot and its shif during calls. I was never told this before signing up for service. Im upset because hspa+ is enough for my needs and will work during calls but they had to go and throttle the service!
Sent from my SAMSUNG-SGH-I717 using xda premium

redpoint73 said:
Yes, from what I understand, there is no standard yet for Voice over LTE, the various stakeholders are still working this out, and its still a long ways away.
So for the present time (and near future), LTE is data only (and no voice) on all carriers.
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Click to collapse
The standard is pretty clear.
You have 3 options for voice under LTE (as of Rel8):
VoLTE - IMS VoIP using AMR
CS (circuit switched) Fallback - basically have the phone camp in the LTE network, and fallback to 3GPP/3GPP2 only in the case of voice calls
SVLTE (Simultaneous Voice and LTE) - the scenario I already described and launched with most NA carriers
The reason for the delay in VoLTE deployment is the difficulty (and cost) in implementation. VZW, AT&T, etc. would probably want to recoup investments in the 3G network already in place before they spend more for VoLTE. At some point in the future, recovering air spectrum from the 3G band is going to be a higher priority than re-using the deployed 3G network, and that's when we'll see more VoLTE movement.

[Q] Nexus 5 Simultaneous Voice/Data

Thought this may be of interest... I see other threads out there related to some older phones, but nothing related to the GNex5, so I thought I'd start one here.
I'm on Sprint, and apparently I can't do simultaneous voice and data with LTE or 3g during voice calls. Wifi seems to work just fine. Anyone else experiencing this with Sprint? What's the experience for those using T-Mobile/ATT? Stock or unlocked? I've also noticed that I'm unable to update my PRL or Profile (Network Error). I am unlocked and rooted at the moment. Did not notice this as I didn't tinker with it prior to unlocking.
Coming from Samsung GS3 and GN2 with Sprint where the LTE/3G radio is separated, I did not realize this was still a technological challenge... I went with this phone simply because it was inexpensive for the hardware and I don't have to renew my contract to avoid paying an arm and a leg. Have I just hit a "You get what you pay for" scenario, putting me (or anyone using CDMA) back 3 years in radio tech??

The phone has to support SVDO in order to do voice+data on Sprint. Very, very few phones do (the EVO 4G LTE did, the HTC One didn't, for example). It requires a special antenna configuration as well IIRC.

cadbomb said:
Thought this may be of interest... I see other threads out there related to some older phones, but nothing related to the GNex5, so I thought I'd start one here.
I'm on Sprint, and apparently I can't do simultaneous voice and data with LTE or 3g during voice calls. Wifi seems to work just fine. Anyone else experiencing this with Sprint? What's the experience for those using T-Mobile/ATT? Stock or unlocked? I've also noticed that I'm unable to update my PRL or Profile (Network Error). I am unlocked and rooted at the moment. Did not notice this as I didn't tinker with it prior to unlocking.
Coming from Samsung GS3 and GN2 with Sprint where the LTE/3G radio is separated, I did not realize this was still a technological challenge... I went with this phone simply because it was inexpensive for the hardware and I don't have to renew my contract to avoid paying an arm and a leg. Have I just hit a "You get what you pay for" scenario, putting me (or anyone using CDMA) back 3 years in radio tech??
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Click to collapse
Unfortunately no, the nexus 5 does not support SVDO or SVLTE. This means it also will only connect to one airlink at a time - when you receive a call, it will switch to 1x, pausing your LTE, similar to older handsets.

justis s said:
Unfortunately no, the nexus 5 does not support SVDO or SVLTE. This means it also will only connect to one airlink at a time - when you receive a call, it will switch to 1x, pausing your LTE, similar to older handsets.
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Too bad... Found more on s4gru regarding this:
"That is what we have been told. Sprint tri band LTE devices will not support SVLTE. Whether that is due to band 26 LTE 800, band 41 TD-LTE 2600, or the combination of the two, we do not know. And the sample size is very small right now to project unconditionally into the future. But the standard expectation going forward should be no SVLTE on Sprint multi band LTE devices. Simultaneous voice and data will have to be accomplished by other means, such as third party VoIP apps and eventually VoLTE."
I are a sad sprint customer lol. Also why I went with a multi carrier phone off contract June 2014 can't come soon enough, cause I loves this phone!

This was my biggest complaints with this phone on sprint. I couldn't do it so I activated it using straight talk for att and couldn't be happier. It's unfortunate that spark phones on sprint won't do simultaneous voice and data, at least for now. But I'm not willing to compromise.
Sent from my Nexus 5 using Tapatalk

laestrella said:
This was my biggest complaints with this phone on sprint. I couldn't do it so I activated it using straight talk for att and couldn't be happier. It's unfortunate that spark phones on sprint won't do simultaneous voice and data, at least for now. But I'm not willing to compromise.
Sent from my Nexus 5 using Tapatalk
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I hear that. My biggest issue with switching providers is that I average 5-6gb of data usage/mo on my line and about 12gb combined with the other two phones on my family plan (Ting told me not to switch lol). It's hard to beat the bargain offered for services rendered from Sprint. Nickles and dimes I suppose. Oh well, maybe 2015 will be the year of the phone... (Oh wait, we'll probably have 5g by then and tri-band will evolve to octa-band with the same problems )

cadbomb said:
I hear that. My biggest issue with switching providers is that I average 5-6gb of data usage/mo on my line and about 12gb combined with the other two phones on my family plan (Ting told me not to switch lol). It's hard to beat the bargain offered for services rendered from Sprint. Nickles and dimes I suppose. Oh well, maybe 2015 will be the year of the phone... (Oh wait, we'll probably have 5g by then and tri-band will evolve to octa-band with the same problems )
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I still have a family plan on sprint so if my data amount becomes an issue I'll go back but for now I'll sacrifice more data for fast and always available data, and at a rate of $45 I'll take it.
Sent from my Nexus 5 using Tapatalk

laestrella said:
This was my biggest complaints with this phone on sprint. I couldn't do it so I activated it using straight talk for att and couldn't be happier. It's unfortunate that spark phones on sprint won't do simultaneous voice and data, at least for now. But I'm not willing to compromise.
Sent from my Nexus 5 using Tapatalk
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I have ST AT&T service. When I am on a call though, I lose LTE. It switches me to H (HPSA I think). Speed is not terrible, but would be nicer to have LTE while on a call. Do you have the same experience? If not, do you know how I can have LTE while on a call? Thanks.

p0k3y said:
I have ST AT&T service. When I am on a call though, I lose LTE. It switches me to H (HPSA I think). Speed is not terrible, but would be nicer to have LTE while on a call. Do you have the same experience? If not, do you know how I can have LTE while on a call? Thanks.
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Nope, that's by design. It has to do with available radios. If LTE isn't on a separate radio it can't be used simultaneously. On the upside, having less radios means better battery life overall.

Hotspot doesn't work during calls

Why is it that the hotspot turns off during cellular calls?
This wasn't an issue with the Note 3 on Sprint.

mrnamster said:
Why is it that the hotspot turns off during cellular calls?
This wasn't an issue with the Note 3 on Sprint.
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Click to collapse
Because data/LTE does not work over calling, feature of tri-band. LTE/3G disconnect during calls because of switching system.

Thanks for the explanation. Tri-band is Sprint Spark right? Now I'm thinking of going back to my Note 3..

mrnamster said:
Thanks for the explanation. Tri-band is Sprint Spark right? Now I'm thinking of going back to my Note 3..
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Yes, sprint spark. All phones are going to this anyways for sprint, no workaround quite yet.

Definitely seems like a deal breaker for me idk i have terrible Spark/LTE service i have the bars etc but get 3-5mbps on every speed test.... I dont understand other then that im always on wifi tho

Yeah, it makes me want to go back to my N3. I wish I knew this before.
There's another thread regarding this issue http://forum.xda-developers.com/showthread.php?t=2715529
Let's close this thread and continue the conversation over there.

RevelationOmega said:
Because data/LTE does not work over calling, feature of tri-band. LTE/3G disconnect during calls because of switching system.
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that's really stupid because the s3 had it over 3g and 4g, and the s4 had it over 4g....and now the s5 not at all.....thanks sprint/samsung

Glitterloveglamour said:
that's really stupid because the s3 had it over 3g and 4g, and the s4 had it over 4g....and now the s5 not at all.....thanks sprint/samsung
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Currently working now on Wifi calling and UNrestricting Download Booster limits now that its working. Maybe well take a look into what we can do about it but it seems we may have no choice because ALL sprint phones will become tri-band and lose that feature, towers switch fallback circuit which restricts the phone, we may not be able to work around. As I said, have to look into it afterwards.

RevelationOmega said:
Currently working now on Wifi calling and UNrestricting Download Booster limits now that its working. Maybe well take a look into what we can do about it but it seems we may have no choice because ALL sprint phones will become tri-band and lose that feature, towers switch fallback circuit which restricts the phone, we may not be able to work around. As I said, have to look into it afterwards.
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Click to collapse
gosh hopefully!!

this should clear up once VoLTE is out. when that is, I have no clue
Sent from my SM-G900P using Tapatalk

Mine is working fine, no issues - also tested w/ incoming calls.

Here is an article talking about Fallback Circuit tech and what is Sprint Spark/Triband Technology
http://s4gru.com/index.php?/blog/1/...-due-to-circuit-switched-fallback-technology/
explains some things as well as VoLTE not quite possible yet.

The decision for Tri-Band devices was not predicated around SVLTE. It was decided on other, more important factors.
*
1. The main reason was for single radios. SVLTE devices have to maintain two separate connections, and thus two separate powered radios. The Tri-band devices have a single radio for all mobile network pathways and thus can operate with less power, meaning lower power use and leading to longer battery life.
*
2. Voice usage is dramatically lower now than it was even a few years ago, this means the need for most consumers to have both voice and data simultaneously is less. In addition, with the increasing use of Video Calling (which go over data only) that also reduces standard voice call usage.
*
3. Many companies are going this route, thus meaning similar devices for multiple carriers, and thus reduced costs for phones due to the scale of production. Having a separately built device to be unique in this regard, means the phones cost more for Sprint to purchase, and thus cost more to the end-user as well. Just look at the new*CCA*stuff where the fact the same identical device can be used across all of these small carriers in turn mean lower costs to all of them. The Youtube*keynote*is more informative and has Masayoshi Son, but he is a bit difficult to understand at some points (not used to Japanese accent personally). Production scale has a lot to do with it though.
*
4. CDMA customers aren't used to SVLTE in general, and the average person probably doesn't know their phone is even capable of it in some circumstances on various carriers.
*
5. SVLTE (Like SVDO on a couple devices) was never a designed feature of these phones, it was a side effect of the way the radios and transmit/receive pathways needed to be designed for the Sprint models of the phones. It was never an advertised ability.
This was copy paste from s4gru
But it's very true
Sent from my SM-G900P using Xparent BlueTapatalk 2

Talk and Surf - Really Verizon???

I love my S6, but I can't believe Verizon doesn't let you talk and surf at the same time, like you could with the S5.
I have advanced calling on, which theoretically let's you do it, but if you are not on LTE, it won't work.
Really Verizon? I thought we were in 2015.

Wait so if you're in 3g we can't do voice and data? That sucks been doing it since my note 2 days

I have no problem doing both while connected to advanced calling. However, if advanced calling isn't available, I can't surf the internet. This isn't a Verizon thing, it's a Samsung deal. They didn't include the radio to allow for it. This may very well have sealed the deal for me to take it back and stick with the Note 4. Being in a rural area a lot, I need both no matter what network is currently available.

It's a CDMA carrier issue with these newer phones that only have a single antenna for cellular radio.
Droid Turbo, Moto X, Nexus 6, HTC m9, etc...
It would be the same on other CDMA carriers such as Sprint.

I first noticed it when I got a Droid Turbo, and it was really frustrating. You also notice it when using SignalCheck Pro, on my G3 you see a 1X and LTE connection active, but on the S6 you see either or depending on your connection.

You wouldn't think it would add much cost to the phone with the second antenna.

VoLTE has always required LTE to function. The giveaway is the freaking "LTE" in the name.

johnnynapalm said:
VoLTE has always required LTE to function. The giveaway is the freaking "LTE" in the name.
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I'm fairly certain everyone in here knows this. The issue isn't with VoLTE, it's that they left a radio out that allows talking and surfing without VoLTE. Note 4 and LG G3 could do it before they received the update that made them VoLTE capable.

You're confusing simultaneous voice and data with VoLTE. OP sure didn't understand that LTE is required for VoLTE.
What has changed is that Verizon is starting to ONLY support simultaneous voice/data VIA VoLTE, in place of extra radios.

Unfortunately this is Verizon's trend. In theory it should improve battery life vs a two radio system. In theory...
They're pushing for this and honestly I think it's a bad choice, at least in the short term. Calls while using VoLTE on Verizon are 100% dependent on your LTE signal. So if it gets too weak or you have to switch to 3G, the call drops. It also can be unusable if the LTE signal is weak. Verizon's FAQ even says if you're in an area of weak LTE or spotty LTE, to disable VoLTE. AT&T and T-Mobile have a fallback so the call won't drop.

To be sure that I am understanding correctly, let me ask it in a dumb downed way.
When you are on 3g and make a call, you can NOT use internet simultaneously.
If you make a call while in LTE, you CAN use the internet while in the call.
This has been the case with VZ and LTE as far as I can remember. No LTE, no internet+call.
Is this situation different? Think I am just misreading and not understanding.
EDIT: And to be clear, I am talking about the beginnings of LTE. Like in the Thunderbolt days. The advanced calling feature was not around that I am aware of.

fire3element said:
To be sure that I am understanding correctly, let me ask it in a dumb downed way.
When you are on 3g and make a call, you can NOT use internet simultaneously.
If you make a call while in LTE, you CAN use the internet while in the call.
This has been the case with VZ and LTE as far as I can remember. No LTE, no internet+call.
Is this situation different? Think I am just misreading and not understanding.
EDIT: And to be clear, I am talking about the beginnings of LTE. Like in the Thunderbolt days. The advanced calling feature was not around that I am aware of.
Click to expand...
Click to collapse
There are a number of techs involved with have both voice and data for CDMA phones/network like VZW. In the past, VZW LTE phones could connect Data on the 4G LTE and have voice connection over 3G/CDMA simultaneously but on the newer phones like the Turbo, Nexus 6, S6 this is no longer possible UNLESS you have VoLTE enabled and are in a 4G LTE location.
The Thunderbolt actually can have both 3G data and Voice simultaneously and one of the few phones which could do that but the battery quickly dries up
my 2 cents

Ah ok, makes sense. That is what I thought, just wanted to make sure.
Guess I will hold on longer to my Note 3 and S3(love it)for a while longer. The S3 is still a great phone in my opinion. Does what you need, and fairly well. Plus you pretty much can recover from any brick status.
Sad to see the way phones are going. Locked bootloaders, no root, forced crapware, no sd card, built in battery.
Next up will be DNA link to your device for "Security". That silly fingerprint reader is so yesteryear.

Radios
WTF? Am I the only one who needs to use data while on a long (conference) call?
I spend most of my time in metro areas with LTE, but Verizon wants to alter my unlimited data plan to activate voLTE. Not happening.
My VZW LG G3 didn't have this issue. I'm no expert here, but there won't be a root or ROM that is going to help me with this problem, right? This is a hardware issue, correct?
Looks like my wife is getting a shiny new Samsung phone.

w0216420 said:
WTF? Am I the only one who needs to use data while on a long (conference) call?
I spend most of my time in metro areas with LTE, but Verizon wants to alter my unlimited data plan to activate voLTE. Not happening.
My VZW LG G3 didn't have this issue. I'm no expert here, but there won't be a root or ROM that is going to help me with this problem, right? This is a hardware issue, correct?
Looks like my wife is getting a shiny new Samsung phone.
Click to expand...
Click to collapse
Talk and data works fine on LTE.
You won't lose your unlimited plan to use VoLTE, I use it just fine.
The G3 was one of the last phones to use two radios simultaneously. A ROM won't fix it.
Sent from my SM-G920V

With the original Edge I know you sacrificed an antenna for the screen so no surfing and voice. Are you all saying even the regular S6 only has 1 antenna?

thuddome said:
With the original Edge I know you sacrificed an antenna for the screen so no surfing and voice. Are you all saying even the regular S6 only has 1 antenna?
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Yes. If you don't have an LTE connection and don't have Advanced Calling enabled, you won't get simultaneous voice and data.

thuddome said:
With the original Edge I know you sacrificed an antenna for the screen so no surfing and voice. Are you all saying even the regular S6 only has 1 antenna?
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It's all recent Verizon phones. The Nexus 6, Droid Turbo, One M9, S6, etc. None can talk and surf at the same time without VoLTE.

Yeah I'm guessing we are headed towards total VOIP.

thuddome said:
Yeah I'm guessing we are headed towards total VOIP.
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That's what Verizon wants. It would be great if Verizon had a fallback if LTE was weak or drops... but as it is right now, it simply takes what Verizon was known for (call reliability) and throws it down the toilet. Ok, it's not that bad... but in the years we were with Verizon before VoLTE, I really don't think I ever dropped a call. I'm sure that's not true, but it was rare. Since VoLTE, it probably happens a few times a month, easy, maybe more . And since I got the S6 last Friday, I've had 4 total due to what appears to be a weaker LTE signal in general on the S6.