Develop Bugs

[Q] The Verizon Nexus and VoLTE?

Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.

Pacifik said:
Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
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Click to collapse
I don't see how using LTE for voice AND data will make battery life any better.

Chirality said:
I don't see how using LTE for voice AND data will make battery life any better.
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Click to collapse
turn off the CDMA radio completely?

crazy talk said:
turn off the CDMA radio completely?
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The LTE radio is the one that burns the battery, not the CDMA radio. So once you start doing voice and data both over LTE its gonna rape the battery lol.

Currently you get a call it's handed off to the CDMA antenna. When on LTE both the CDMA for voice and LTE for data are on. Whereas with VoLTE while on LTE there is no hand off, therefore no secondary voice antenna needs to be on as the LTE handles it.

Pacifik said:
Currently you get a call it's handed off to the CDMA antenna. When on LTE both the CDMA for voice and LTE for data are on. Whereas with VoLTE while on LTE there is no hand off, therefore no secondary voice antenna needs to be on as the LTE handles it.
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That's not true at all. When the CDMA radio is on for voice communication it turns *off* the LTE radio. We know this because voice and data at the same time are not possible on most LTE phones.
If you used the LTE radio for voice communication, as well as data, it would *completely* destroy your battery life.

hotleadsingerguy said:
That's not true at all. When the CDMA radio is on for voice communication it turns *off* the LTE radio. We know this because voice and data at the same time are not possible on most LTE phones.
If you used the LTE radio for voice communication, as well as data, it would *completely* destroy your battery life.
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Click to collapse
On Verizon LTE phones you can 100% definitely use 4g data while on 3g voice, most can't do 3g simultaneous voice and data. While LTE ants use more power, powering up a second antenna while already using the LTE will hurt even more. There will also be usually be an increase in call quality on an LTE call. All of this is under the assumption you actually plan on using the 4G network.

Important question that needs an answer
I too am considering getting the new Galaxy Nexus on VZ. The battery issue I find secondary to my main concern, but it should be obvious that using only one radio (LTE) will have power saving benefits vs two radios. If just using voice, it may be a net loss of battery life. I guess we'll see how LTE stacks up to CDMA power consumption.
But here is the important question: will the SGN be upgradeable to support VoLTE (Voice over LTE) and the accompanying high-definition audio codec AMR-WB. You see, your horrible-sounding cell calls will transform to sounding better than a land line (assuming, of course, a compatible phone on the other end). It is even conceivable one could call VoIP landlines that support this codec and get good audio quality.
So you see, it is really all about the audio quality. Battery life is secondary, and may go up or down depending on your useage of voice only or voice and data.

[email protected] said:
I too am considering getting the new Galaxy Nexus on VZ. The battery issue I find secondary to my main concern, but it should be obvious that using only one radio (LTE) will have power saving benefits vs two radios. If just using voice, it may be a net loss of battery life. I guess we'll see how LTE stacks up to CDMA power consumption.
But here is the important question: will the SGN be upgradeable to support VoLTE (Voice over LTE) and the accompanying high-definition audio codec AMR-WB. You see, your horrible-sounding cell calls will transform to sounding better than a land line (assuming, of course, a compatible phone on the other end). It is even conceivable one could call VoIP landlines that support this codec and get good audio quality.
So you see, it is really all about the audio quality. Battery life is secondary, and may go up or down depending on your useage of voice only or voice and data.
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If the wideband voice codec is implemented in hardware, then sure it can be a software upgrade. Otherwise its up to the CPU to do all the processing which isn't ideal. Still could be done though, just not in an optimal fashion.

the downsides outweigh the very small benefits. yeah, just using a lte antenna and turning off cdma will net you a small gain, but having lte on 24/7 will burn through the battery quickly and using it for voice just to gain a little clarity will still burn through the battery, just now you're using more power compared to cdma voice. nice try though.

pukemon said:
the downsides outweigh the very small benefits. yeah,
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Then get a CDMA phone and keep having your phone conversations in low-def. Each to their own.
Personally, I absolutely despise cellphone audio quality (what? What did you say?) and will gladly burn a few extra milliamps, if indeed there is much of a penalty, for the few minutes I am actually talking on the phone.
---------- Post added at 04:41 PM ---------- Previous post was at 04:37 PM ----------
aadvanced1 said:
If the wideband voice codec is implemented in hardware, then sure it can be a software upgrade. Otherwise its up to the CPU to do all the processing which isn't ideal. Still could be done though, just not in an optimal fashion.
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My understanding is that the voice codec must be in the modem firmware. Supposedly, from what I have read on the internet, the SGN uses the same SGS Thomson modem as the Samsung Galaxy II, which is capable of VoLTE. Again, reading on the internet, VZ has specifically asked Samsung (this was noted in the FCC filing) to ship it without VoLTE, presumably for better compatibility with their network today.
So, the million dollar question is: Is this just a firmware upgrade to enable when VoLTE goes live on VZ? Pretty sure modem firmware is different from Android OS. Not sure if it is upgradeable after the fact. Is this what is commonly refered to as "baseband firmware"?
Does anybody know more about the guts of these phones?

pass. i'll stick to gsm for a while longer. much longer. much better on the battery, call quality is satisfactory and i can travel with it. when lte power consumption is comparable to that of current hspa/cdma radios i might consider switching. until then i'm going to try and make my nexus last a couple years.

[email protected] said:
Then get a CDMA phone and keep having your phone conversations in low-def. Each to their own.
Personally, I absolutely despise cellphone audio quality (what? What did you say?) and will gladly burn a few extra milliamps, if indeed there is much of a penalty, for the few minutes I am actually talking on the phone.
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Totally agreed. Going from a cell conversation to a Skype to Skype call makes you realize how undescribably bad cell voice quality is.

here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?

Pacifik said:
Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
Click to expand...
Click to collapse
It's a really good question. If I had to bet, I'd say yes. I'd bet they've got Samsung putting the codec into the modem firmware already. I'd bet their 4G device testing already includes VoLTE IMS along with one or two production test markets for VZW field testing. I think the odds are good. That said, they don't exactly advertise on the box:
"Supports VoLTE so in about 9 months your battery life won't completely suck and maybe you'll get HD audio if you're seriously lucky."
Samzebian said:
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
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Yes. You should be able to do this even without VoLTE using 3G voice and 4G data. Different radios.

Samzebian said:
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
Click to expand...
Click to collapse
Voice over LTE treats the call as data, it's the same thing as a voip call essentially.

3g/4g during call

I know the Thunderbolt was capable of this...so can this great developers phone run 3g or 4g while on a call? It would seem to me like if the Thunderbolt could, it's a phone not carrier issue. And if this can't be done, please school me in why. Thanks!

The thunderbolt took advantage of eHRPD which allowed it to use voice and data simultaneously.. I have no idea if the Galaxy Nexus does as I've since moved to T-Mobile.. it should though

It won't. The Thunderbolt and Rezound have unique radios.
3g and LTE are on one radio, and voice and 1x? are on the other.
This allows for svdo.
On the Nexus, 3G and voice are on one radio and LTE is on another. At least, thats how its been explained to me.
Edit: When I say won't, I mean won't do 3g while on a call.

Yea using LTE I'm able to be on a call and surf the net. I was on a conference call the other day while out in the field and Googling stuff in reference to the call.
I haven't tried 3G but probably not.
LTE EX Galaxy Nexus CM9
Asus Transformer Revolver

adrynalyne said:
It won't. The Thunderbolt and Rezound have unique radios.
3g and LTE are on one radio, and voice and 1x? are on the other.
This allows for svdo.
On the Nexus, 3G and voice are on one radio and LTE is on another. At least, thats how its been explained to me.
Edit: When I say won't, I mean won't do 3g while on a call.
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wow, never even knew this. I always figured manufacturers stuck to 3g/voice on one radio because it was probably so much cheaper. I wish Samsung would have implemented this, would have made life so much easier when on the phone with people. Where I specifically live, its 3g only, but any city in the vicinity is generously blanketed with 4g

MSM8960, HD Voice, and the S3

Every reference to HD Voice and Sprint talks about the EVO 4G LTE. The Galaxy S3 has the same SoC from Qualcomm that the EVO 4G LTE has. Both phones state that they support 1x Advanced which is required for HD Voice to work. So far I haven't found anything that states that the S3 actually has the codec installed on the phone for HD Voice. Has anyone seen/heard anything that says that Samsung/Sprint will support HD Voice on the S3? Apparently the hardware can support it so I hope it is just a matter of installing the codec.
HD Voice seems like it would be a cool extra. Normal cell phone quality (GSM or CDMA) is crappy even compared to POTS. When I make a VoIP call to VoIP call using non-compressed ("toll quality") is sounds so much better than a cell call. I'm looking forward to HD Voice for cell phones!

jeffgus said:
HD Voice seems like it would be a cool extra. Normal cell phone quality (GSM or CDMA) is crappy even compared to POTS. When I make a VoIP call to VoIP call using non-compressed ("toll quality") is sounds so much better than a cell call. I'm looking forward to HD Voice for cell phones!
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HD Voice requires both phones/callers to support it.
By not requesting it on the GS3, Sprint has already killed off and made the feature useless.
But then again, we probably won't be using our phones with it, as it requires 1x Advanced. Which won't be implemented until after the Network Vision rollout in 2014. We'll have new phones around that time.

jnadke said:
HD Voice requires both phones/callers to support it.
By not requesting it on the GS3, Sprint has already killed off and made the feature useless.
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Click to collapse
So, you think that Sprint didn't request it? It seems to me that they would want to tout as many HD Voice phones as possible. To only have the EVO 4G LTE is kinda lame.
jnadke said:
But then again, we probably won't be using our phones with it, as it requires 1x Advanced. Which won't be implemented until after the Network Vision rollout in 2014. We'll have new phones around that time.
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I thought that any area that has Sprint LTE is already a Network Vision site. They're stripping out all the old equipment and putting in newer 3G radios (that support Rev.b and 1x Adv) in addition to LTE radios. Is this not the case? Or is the current LTE deploy just the foundation for full NV that can be handled in software later once they get all the RF spectrum worked out.

jeffgus said:
So, you think that Sprint didn't request it? It seems to me that they would want to tout as many HD Voice phones as possible. To only have the EVO 4G LTE is kinda lame.
I thought that any area that has Sprint LTE is already a Network Vision site. They're stripping out all the old equipment and putting in newer 3G radios (that support Rev.b and 1x Adv) in addition to LTE radios. Is this not the case? Or is the current LTE deploy just the foundation for full NV that can be handled in software later once they get all the RF spectrum worked out.
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1. Usually with this type of stuff, Samsung might develop the initial support, but there might be patent royalties associated with HD Voice. Samsung has no incentive to pay money out of pocket and develop it and put it in and pay more. Usually for things like this, the carrier is the customer, and it's up to the customer to pay for it.
Don't be mad at Samsung, this is just how the system works. The other carriers don't need the feature, so it was up to Sprint to ask for it by paying NRE. Be mad at Sprint for not wanting it.
Of course, the feature is just software. So there's no reason Sprint already hasn't paid for it and it will be released as an update in the future (just as Verizon said they will support GSM roaming).
2. Network Vision is much more than that. They're deploying Software-Defined radios on the towers. The initial rollout is LTE, but 1x Advanced will be rolled out later on the 800Mhz spectrum.
After the tower is built, it's technically just a software update.
Of course, every once in a while Sprint might need a hardware update as technologies evolve. Or install new antennas as they acquire more frequencies.

jnadke said:
1. Usually with this type of stuff, Samsung might develop the initial support, but there might be patent royalties associated with HD Voice. Samsung has no incentive to pay money out of pocket and develop it and put it in and pay more. Usually for things like this, the carrier is the customer, and it's up to the customer to pay for it.
Don't be mad at Samsung, this is just how the system works. The other carriers don't need the feature, so it was up to Sprint to ask for it by paying NRE. Be mad at Sprint for not wanting it.
Of course, the feature is just software. So there's no reason Sprint already hasn't paid for it and it will be released as an update in the future (just as Verizon said they will support GSM roaming).
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Interesting. Qualcomm's original model is that the license was part of the chip. For example, CDMA had patents, the codec had patents, etc, but if you bought one of their chips, the price of that part covered the patent cost. This was different than how others were doing things where a company would have to license the patent and then make the hardware themselves.
jnadke said:
2. Network Vision is much more than that. They're deploying Software-Defined radios on the towers. The initial rollout is LTE, but 1x Advanced will be rolled out later on the 800Mhz spectrum.
After the tower is built, it's technically just a software update.
Of course, every once in a while Sprint might need a hardware update as technologies evolve. Or install new antennas as they acquire more frequencies.
Click to expand...
Click to collapse
So it is a multi-phase rollout? The equipment that goes in with LTE is the foundation? I figured everything is SDR these days. SDR makes things simple for upgrades.
It seems like an easy win for Sprint to take all of their MSM8960 based phones and push out an update for HD Voice when their side is ready. I'm hoping that they will do that with the Galaxy S3.

Simultaneous Voice and Data on Sprint 3G

Maybe I missed this but I didn't think that Sprints 3G service allowed for simultaneous voice and data.
I'm in Canton, Ohio and I just noticed that today I'm able to both use the phone and browse the Web at the same time without WIFI.
I can only assume that this is a network vision thing. LTE isn't in my future for a little while but I thought this was a good sign. Anyone else notice this?
Sent from my SPH-L710 using xda premium

I noticed this in STL over the weekend, I am not sure how long it has been this way because like you I "knew" it didn't work so never tried it. I just happened to get an email while on a call.

SVDO isn't a network feature or capability. It's only dependent on the phone having multiple data and voice antennas, and the Galaxy S3 does.

EndlessDissent said:
SVDO isn't a network feature or capability. It's only dependent on the phone having multiple data and voice antennas, and the Galaxy S3 does.
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So I can use data while on the phone with my Galaxy SIII??? Wow, that's AWESOME!:good:
Going to have to try this out once I'm in an area that isn't being 'visioned'.....right now I don't have connectivity even though my phone says that I do.

I found out the same way you guys did (im in Tampa) and did some reading and was really surprised to find out that our phones did out the box....made me love the phone even more.

Yes. Today. I received a call while downloading and it still downloading...nice.
Not like my Epic4g downloading a file 100mb and on 92mb some call you to say Hi!
Sent from my O=O

This statement isn't exactly true. It is both a phone and network feature. The towers need to accept multiple connections from the same phone id, as well as the phone needs to have the multi channel capabilities. Sprint used to block this, but doesn't anymore.
Sent from my SPH-L710 using xda premium

ptfdmedic said:
Maybe I missed this but I didn't think that Sprints 3G service allowed for simultaneous voice and data.
I'm in Canton, Ohio and I just noticed that today I'm able to both use the phone and browse the Web at the same time without WIFI.
I can only assume that this is a network vision thing. LTE isn't in my future for a little while but I thought this was a good sign. Anyone else notice this?
Sent from my SPH-L710 using xda premium
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Click to collapse
Reading this thread I thought you have all gone bonkers, but since my sgs3 is not connected yet I couldn't test this myself. Well my coworker has the evo lte.....hmm they have the same internals so I got him to try, it certainly does work. This feature is not advertised, would be hilarious if sprint didn't even know this.

epic4GEE said:
Reading this thread I thought you have all gone bonkers, but since my sgs3 is not connected yet I couldn't test this myself. Well my coworker has the evo lte.....hmm they have the same internals so I got him to try, it certainly does work. This feature is not advertised, would be hilarious if sprint didn't even know this.
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I noticed it just today as well, and lo and behold here's this thread! So I called sprint here a few minutes ago and asked the rep if they knew of it working.
They didn't. ROFL!

$MyName said:
I noticed it just today as well, and lo and behold here's this thread! So I called sprint here a few minutes ago and asked the rep if they knew of it working.
They didn't. ROFL!
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Click to collapse
lmfao...another thought is this is not a part of the vision upgrade, just something to do with the s4 soc , I bet Verizons sgs3 along wIth other snapdragon powered phones can do it as well

epic4GEE said:
Reading this thread I thought you have all gone bonkers, but since my sgs3 is not connected yet I couldn't test this myself. Well my coworker has the evo lte.....hmm they have the same internals so I got him to try, it certainly does work. This feature is not advertised, would be hilarious if sprint didn't even know this.
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I don't know anything about Samsung ads, but the SVDO capability is listed in all the spec sheets I've seen. Sprint had to request the capability from Samsung, so Sprint must know the feature is included.

This was discussed many times since this phone was released. Shows how much people search and or research their own phone.

jbadboy2007 said:
This was discussed many times since this phone was released. Shows how much people search and or research their own phone.
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Ha. When Sprint activates HD Voice, I anticipate a ton of threads with people asking why voice calls don't sound better on the S3. Then, they'll throw a fit when they're told the S3 doesn't support it. It's just like all the people in non-LTE areas asking why their 4G no longer works even though they had full signal on their Evo or Epic 4G. No one wants to spend time researching their purchases.

I have to admin
I have to admin that when I finally switched from my blackberry to the S3, I was so used to having wifi on that when I was on a call and my email was still coming in or I was able to launch a browser and look things up, I nearly went crazy. Being in IT I never looked up the phone specs to be honest other than being highly anxious to install applications from the Play Store and do things I couldn't do with my old device. Now I'm just looking for a good rom to root the device for wifi, lol.

I've been driving iSheep off the iphone5 with specifically this feature (not that there aren't at least a dozen more. I think that with the financial future of Sprint in the hands of Apple and the sales of iPhones the lack of dual antennas because it has a 'dynamic antenna' is going to cripple anyone who needs/wants that feature. To me SVDO is something that killed me when we didn't have it and now that I do I can never go without it.

Is anybody can explain then why when streaming the radio if I receive a text massage the radio stops (I know because of that ring) but it goes to buffer and chokes till start streaming again. This is the same as any other phone before so SVDS no benefit here.
Sent from my SPH-L710 using xda app-developers app

dito33 said:
Is anybody can explain then why when streaming the radio if I receive a text massage the radio stops (I know because of that ring) but it goes to buffer and chokes till start streaming again. This is the same as any other phone before so SVDS no benefit here.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Mine doesnt choke after resuming pandora but at other times it chokes. Its just pandora not anything related svdo

Anyone know if the Sprint
Galaxy S4 will also do simultaneous voice and data on 3G like the S3 does?

XandroidX said:
Anyone know if the Sprint
Galaxy S4 will also do simultaneous voice and data on 3G like the S3 does?
Click to expand...
Click to collapse
No. The chipset does not support the SVDO capability.
http://s4gru.com/index.php?/blog/1/entry-343-a-short-time-from-now-in-a-galaxy-not-far-away/
As for simultaneous voice and data, the Galaxy S4 does support SVLTE but is the latest in a long line of Sprint LTE handsets now to forgo SVDO. Realistically, this comes as no great surprise, as we have not seen SVDO capability in any new handset since last summer. Either this is a limitation of the Qualcomm MDM9615 baseband modem that has become standard equipment or SVDO is no longer a strong priority as Sprint LTE coverage grows weekly. Regardless, CDMA1X and EV-DO share a transmit path (indicated in the FCC OET diagram above); hence, simultaneous CDMA1X voice and EV-DO data is not supported.
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Can you use 3g data while talking on the phone?

I am going in the morning to upgrade my line and was wondering if you can use 3g data and talk on the phone at the same time? I've used the gs3 and the evo lte and able to do so.
This would be a deal breaker if I can't and the idiots that should know (sprint) don't! Thanks
Sent from my EVO using Tapatalk 2

oldpreowner said:
I am going in the morning to upgrade my line and was wondering if you can use 3g data and talk on the phone at the same time? I've used the gs3 and the evo lte and able to do so.
This would be a deal breaker if I can't and the idiots that should know (sprint) don't! Thanks
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
I would verify with another tester, as my connection isn't very good at work. But while on 3G data, I cannot go to any websites on the browser. Wi-Fi, however, works fine while on a call. Odd...
EDIT: It does not support SVDO, but it does support SVLTE. From http://s4gru.com/index.php?/blog/1/entry-317-updated-lg-eclipse-4g-casts-an-early-shadow/

oldpreowner said:
I am going in the morning to upgrade my line and was wondering if you can use 3g data and talk on the phone at the same time? I've used the gs3 and the evo lte and able to do so.
This would be a deal breaker if I can't and the idiots that should know (sprint) don't! Thanks
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
Wow, I assumed this was a CDMA limitation, not a phone limitation. You've been able to talk and get data simultaneously without turning on wifi or 4g on the GS3 and Evo LTE on Sprint?
My wife just got her Optimus G, I'll have to try this out tonight.

Evan78 said:
Wow, I assumed this was a CDMA limitation, not a phone limitation. You've been able to talk and get data simultaneously without turning on wifi or 4g on the GS3 and Evo LTE on Sprint?
My wife just got her Optimus G, I'll have to try this out tonight.
Click to expand...
Click to collapse
I'm surprise as well. I thought that all sprint phone calls and text use the CDMA spectrum and therefore no data would be available during that time. You can still use LTE i think (if it is in your area).

Yes you are able to on both phones I mentioned due to the fact they have an extra radio in them. Thanks for the replies.
Sent from my EVO using Tapatalk 2

What do you mean extra Radios...I always thought it was an Apple patent issue. 3G has nothing to do with talk service cecause you can shut it off and still place your calls. Calling, 3G data, 4G data, and Wifi are all seperate radios...if I'm not mistaken. Iphones doit on sprint so there for I believe it's an Apple patent issue but if the SIII does it then I don't know I guess. My Evo3D would not do it.
Just tried with my G...nope can't do it. I still believe it's an apple thing...annoying.
---------- Post added at 04:33 PM ---------- Previous post was at 04:26 PM ----------
latindor17 said:
I'm surprise as well. I thought that all sprint phone calls and text use the CDMA spectrum and therefore no data would be available during that time. You can still use LTE i think (if it is in your area).
Click to expand...
Click to collapse
You can shut off data and still send SMS, it goes through the normal voice calling section. But MMS requires the data to be on.

It's not related to patents. It's related to hardware capabilities and standards.
For those like me that didn't know it was possible, here's a thread of people discussing the GS3 on Sprint having dual radios to enable simultaneous voice and data without being connect to 4g or wifi.
The capability is referred to as SVDO (simultaneous voice and data). I assume the O is for operation.
I tested my wife's Optimus G on Sprint and it doesn't work.

Wow thought Android phones were way advanced compared to I phones ( they still are in my opinion )...ohwell I'm still not ever going to switch to apple devices lol. I'm just happy with talking then seaching lol.

It's phone related as the S3 can do it. The LG cannot. I used to be able to when I had the S3 but when testing the OG I can't. I think it has to do with the S3 having a second radio for that kind of thing and the LG cutting that space out for the quad core + LTE. The LG is a sexier phone IMO so the trade off is worth it for me.

I went ahead and got the phone because it's so smooth but just after one day I already miss data while on a call. I'm gonna give it a week and see if I can deal with it. Thanks for all the input.
Sent from my LG-LS970 using Tapatalk 2

I agree man it sucks, I had the white evo lte and man it used to come in handy at times especially in areas with no lte service. But then again.... That quad core processor and that 13mp cam... Give it some time man once the awesome devs get to working on it this phone will be a monster to be reckoned with!!
Sent from my LG-LS970 using xda app-developers app

The iPhone is the only phone in the world capable of this.
Sent from my HTC One XL using Tapatalk 2

Just tried it. It is not capable of this.
Sent from my LG-LS970 using xda premium

Yes...I can...airtel India
Sent from my SGH-T959 using xda app-developers app

Sprint og doesn't do svdo. Simultaneous voice and data

oldpreowner said:
I am going in the morning to upgrade my line and was wondering if you can use 3g data and talk on the phone at the same time? I've used the gs3 and the evo lte and able to do so.
This would be a deal breaker if I can't and the idiots that should know (sprint) don't! Thanks
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
You can do it on the EVO Lte and the S3. This one of the few features I miss from my S3.
Sent from my LG-LS970 using xda premium

charlieb620 said:
The iPhone is the only phone in the world capable of this.
Sent from my HTC One XL using Tapatalk 2
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Click to collapse
Not so fast buddy, my Samsung Epic 4G Touch does it with the Kangpang JB Rom
and that phone is way inferior to the Optimus G. I also took pictures and texted them
while on a call using 3G and 4G. Sorry I couldn't help myself I compete with Iphones at
work all day. Also with the 2100 N battery upgrade (Ebay $30-50 ) I got NFC to work
with JB to GIII and Samsung Nexus.

Funny thing is this phone has all the hardware to do svdo it's just not turned on in the software. If you look at the FCC diagram it has two cdma antennas which are needed. So I bet if LG wanted to with a simple update to the radio it could be activated

I came from the LG Viper 4G LTE I was so disappointed that my TOP OF THE LINE Optimus G couldn't do simultaneous voice and data like my old Viper. I love the Optimus G but I might have to go with "GAG" GS3 or EVO LTE

gary2smart said:
Not so fast buddy, my Samsung Epic 4G Touch does it with the Kangpang JB Rom
and that phone is way inferior to the Optimus G. I also took pictures and texted them
while on a call using 3G and 4G. Sorry I couldn't help myself I compete with Iphones at
work all day. Also with the 2100 N battery upgrade (Ebay $30-50 ) I got NFC to work
with JB to GIII and Samsung Nexus.
Click to expand...
Click to collapse
SVDO is not possible on the Samsung Galaxy Epic 4G Touch. SVDO is exclusive to 3G and It's a feature built in to the newer Qualcomm chips in the Evo Lte, GS3, and LG Viper. Those are the only sprint phones capable of SVDO. What you did have is 4G data over calls since it uses a different radio (not 3g). SVDO is based on the Qualcomm chip not how many radios you have on your phone. My note 2 can't do svdo since Samsung chose to use their Exynos chip instead of the Qualcomm. Something I'm upset about but can live with since lte is coming and will be possible with SVLTE.
Sent from my SPH-L900 using xda app-developers app