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Inabuilty for Simultaneous Voice and Data

Why is the Nexus One unable to do Simultaneous Voice and Data.
I have searched hi and low.
And yes i am in a 3G area and all that jazz.

donniesd said:
Why is the Nexus One unable to do Simultaneous Voice and Data.
I have searched hi and low.
And yes i am in a 3G area and all that jazz.
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It is.........

hah2110 said:
It is.........
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Well by all means please tell me how!
And dont dear say wifi!!!

donniesd said:
Well by all means please tell me how!
And dont dear say wifi!!!
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What do you mean how? If you are on 3G... it just works.

hah2110 said:
What do you mean how? If you are on 3G... it just works.
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I am in 3G.
I have no problems when putting my sim in my tp2. And talking while surfing.
And i am not the only one. No one has givein a reason as to why.

Uh..unless you changed you radio settings to "WCDMA only" you should be able to talk and surf.

It should work. I do it all the time, but it is network dependent.
In case it works on your TP2 i suggest you check your settings.

Hey big guy are you using a t-mobile nexus one on AT&T? Or AT&T N1 on T-mobile? That used to send all my calls to voicemail while I was on the intarwebs

JCopernicus said:
Uh..unless you changed you radio settings to "WCDMA only" you should be able to talk and surf.
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Incorrect. "WCDMA only" is still UMTS/HSPA (3G/3.5G in consumer speak), therefore you still get voice/data at once. I can only conclude that you're under the assumption that UMTS/GSM work the same way EVDO/CDMA does. On an EVDO network, all data goes through the EVDO network, while voice stays on 1xCDMA, because EVDO is an addon to 1xCDMA.
UMTS and GSM are two completely incompatible technologies that only share GSM backend features and a SIM card. The circuits in the phone are separate, the antennas on the towers are separate. You're either completely on UMTS for voice and data (inc. both at the same time) or you're completely on GSM (for voice or data but not both at once. In fact, if you're locked on to a strong UMTS signal, the parts of your phone that handle GSM shut down for power conservation and only wake up when your signal drops to check to see if you'll get a superior signal over GSM. It will do this periodically, but won't stay active for long unless your UMTS is so bad that you won't be able to hold a call. THEN your phone powers up and maintains the GSM radio, while putting the UMTS radio on standby, only powering it up momentarily to look for a better signal.
The only time you have GSM and WCDMA/UMTS powered on at the same time is during hand-offs from one network to the other. That's why staying in areas where you bounce between the two kills your battery so quickly, the radio is drawing roughly twice as much juice as it normally does, plus it's computing which one will do the better job for the moment. Even then, at that time, the phone and its OS will be using only one of the networks at a time, and if it's UMTS, you'll be able to hold a call and surf the web.

rx7freak said:
Hey big guy are you using a t-mobile nexus one on AT&T? Or AT&T N1 on T-mobile? That used to send all my calls to voicemail while I was on the intarwebs
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TMO on TMO.
Attached are my settings.
I have this on every rom or radio i try.

Hey, sort of same thing just happened to me
in my case using GSM Auto (prl) or WCDMA prefered I can connect to HSDPA but GSM is in emergency calls only, weird.
but I can do both on GSM only (GPRS/EDGE)

Re-flashed to official release of 2.1 same thing.

i use voice and data on my nexus at the sme time every day. it just works. as long as you have a 3G symbol next to your reception bars, then it works.
i dont know what you could have done to break this. can you demonstrate to us what you are doing that is not "working"?

RogerPodacter said:
i use voice and data on my nexus at the sme time every day. it just works. as long as you have a 3G symbol next to your reception bars, then it works.
i dont know what you could have done to break this. can you demonstrate to us what you are doing that is not "working"?
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I am connected to 3G network. Call comes in. I can not browse on the internet. While i am on the call i go check settings and i have droped to GPRS. As soon as i hang up i go back to 3G (HSDPA)

Have you ever changed your build.prop file at all in the past? If so that's the problem. Change to hsxpa=2 to fix it.
If not then I have no clue.

RogerPodacter said:
Have you ever changed your build.prop file at all in the past? If so that's the problem. Change to hsxpa=2 to fix it.
If not then I have no clue.
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It is.
I have no problem on my TP2.

I use it often too but today I was unable to it. Hopefully its because my area is being updated to hsdpa+

i think i have the same problem. 3G drops during voice call, doesn't connect during the call. reconnects after the call ends.
stock nexus one tmobile FRG83D

When you have bad reception, that's what happens. Normal and expected. During the call it won't re-negotiate 3G, only when the call ends.

Jack_R1 said:
When you have bad reception, that's what happens. Normal and expected. During the call it won't re-negotiate 3G, only when the call ends.
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Yeah, that is normal and it really sucks when you're on a long call. Once you lose 3G signal it's gone for good. I don't know if it's a network problem, or the phone, but it should be fixed.

Can you talk and surf at the same time with the bionic ???

I have been looking all over about this. I have the Thunderbolt but not happy with the HTC poor quality phone, and random reboots once in a blue.
So I am thinking in getting the Bionic.
Thanks.

You totally can talk and surf at the same time, I did it today and was surprised to see it worked very well.

fgarcia25 said:
I have been looking all over about this. I have the Thunderbolt but not happy with the HTC poor quality phone, and random reboots once in a blue.
So I am thinking in getting the Bionic.
Thanks.
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*Only* on 4G. 3G simultaneous voice/data is not supported.

Berzerker7 said:
*Only* on 4G. 3G simultaneous voice/data is not supported.
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Really? That's interesting... my Thunderbolt does voice & data on LTE or EVDO. From what I was told by my Verizon Business Data Specialist, it's actually not a limitation of the Verizon Network, it has to do with the antenna in the phone (which is strange, you would think they would have enabled it long ago on 3G).

WorldOfJohnboy said:
Really? That's interesting... my Thunderbolt does voice & data on LTE or EVDO. From what I was told by my Verizon Business Data Specialist, it's actually not a limitation of the Verizon Network, it has to do with the antenna in the phone (which is strange, you would think they would have enabled it long ago on 3G).
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I believe the thunderbolt has a separate "2g" radio and antenna that it can make voice calls on while using the 3g or 4g for data.
I'm not sure if the bionic is the same.

eallan said:
I believe the thunderbolt has a separate "2g" radio and antenna that it can make voice calls on while using the 3g or 4g for data.
I'm not sure if the bionic is the same.
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This is true. The Thunderbolt doesn't actually do simultaneous 3G voice/data, it has voice over 1X on a different antenna, then data over 3G.
It is *most definitely* a limitation of the network, running EVDO Rev. A which doesn't support it. Rev. B does, but VZ decided to skip it and go straight to LTE.

Cool. Thanks everyone. This definitely makes me want to get it.

Share what your on tbolt, internet works when surfing and talking
Sent from my ADR6400L using XDA App

scottthreet32 said:
Share what your on tbolt, internet works when surfing and talking
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I think what you are asking "What data services work while you are talking on your Thunderbolt?" If so, everything that I have noticed... Email, Browser surfing, and SMS messaging. Not sure about Hotspot Tethering, but would have to assume it does.
To qualify my previous statement regarding simultaneous Voice and Data, I didn't mean to say that both Voice & Data were 3G and worked at the same time... What I meant to say was that while my Thunderbolt showed a 3G EvDo connection, I could talk and surf. If the voice is going over a 1X network, I wouldn't know because the voice quality was just as good as always. It is safe to say that voice doesn't require 3G EvDo connectivity to function well.
Furthermore, if they made separate antennas in the Tbolt that made this possible, then both Berzerker7 and I were correct... though there is a limitation on VZW 3G EvDo's network, if the phone manufacturer's had just made separate antennas, then there are a lot of phones that could have done Simultaneous Voice & Data.

talk and surf
I just tested this myself and I am able to talk and surf at the same time with no problems but I was on 4g don't know what will happen when I am on 3g. Something else that I noticed what I think it is, is that voice is going over cdma and data is going over gsm. If you go to your dialpad and type this in *#*#4636#*#* and then go to phone information, you will see at the bottom it says gsm/cdma network auto. Here is where I found the code along with some other interesting info askvg.com/google-android-hidden-secret-codes Does anyone else have any info on this. Biggest question why isn't VZW advertising that you can talk and surf at the same time now...

CarmeloR said:
I just tested this myself and I am able to talk and surf at the same time with no problems but I was on 4g don't know what will happen when I am on 3g. Something else that I noticed what I think it is, is that voice is going over cdma and data is going over gsm. If you go to your dialpad and type this in *#*#4636#*#* and then go to phone information, you will see at the bottom it says gsm/cdma network auto. Here is where I found the code along with some other interesting info askvg.com/google-android-hidden-secret-codes Does anyone else have any info on this. Biggest question why isn't VZW advertising that you can talk and surf at the same time now...
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Does not work in 3G areas unfortunately... since my home is still 'out there'
Mark

If you get a call on 3G, the icon will disappear until your call is over. 4G only, not sure about wifi.

psufan5 said:
If you get a call on 3G, the icon will disappear until your call is over. 4G only, not sure about wifi.
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If you're on wifi you can talk and surf, you've always been able to. That's not new.

psufan5 said:
If you get a call on 3G, the icon will disappear until your call is over. 4G only, not sure about wifi.
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All android phones I have used allow simultaneous voice/data with a Wi-Fi connection.

The reason the Thunderbolt is the only LTE VZW phone that can do it, Qualcomm and HTC jumped through hoops to with the FCC to get them to allow the Thunderbolt. It has a total of 4 antennas and they do not exceed the legal limit imposed by the FCC. (This is probably an attribute, although not certain, of why the battery life sucks.) Therefore you can talk and surf on 3G and 4G. This antenna combo is not on any of the other LTE phones offered by VZW (They all are not HTCs the other ones), but i'm sure the next HTC 4G phone that comes out will be able to do it on 3G and 4G if it has the multiple antenna setup from Qualcomm.
One of the sources I've read, I can't find the one that I really liked though:
http://www.anandtech.com/Show/Index...erbolt-review-first-verizon-4g-lte-smartphone

WiFi and LTE/3G always on simultaneously?

Wondering if anyone knows what's up here?
On my D1 I either had WiFi OR 3G symbol in the notification vary. But since getting the Bionic I ALWAYS have WiFi and either 4G-LTE or 3G also. Is this normal? And if so, is it just a wonky indication or is it really accurate? I guess it doesn't really matter except in terms of battery usage, which seems fine. Of course if I turn WiFi off I then only have the LTE-4G/3G symbol.
This is all true regardless of whether I am in CDMA/LTE or CDMA Only.
Any/all guidance is appreciated.

les017 said:
Wondering if anyone knows what's up here?
On my D1 I either had WiFi OR 3G symbol in the notification vary. But since getting the Bionic I ALWAYS have WiFi and either 4G-LTE or 3G also. Is this normal? And if so, is it just a wonky indication or is it really accurate? I guess it doesn't really matter except in terms of battery usage, which seems fine. Of course if I turn WiFi off I then only have the LTE-4G/3G symbol.
This is all true regardless of whether I am in CDMA/LTE or CDMA Only.
Any/all guidance is appreciated.
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Yeah I noticed the same thing. LTE is on all the time with wifi, the is no handover whatsoever. It is killing the battery by cell standby. There is no way to change this in any of the settings except turning data completely off.
Sent from my DROID BIONIC using Tapatalk

Same here. I hope they fix that. Lol.
Sent from my DROID BIONIC using XDA App

Actually I think you two are mis understanding the icons. If you read the manual, the one that turns BLUE is the active data connection. Some things (like the Verizon app) can only go over the verizon network. Additionally, you will ALWAYS have power to the cell radio (how else do you recieve an incomming call or a SMS?)
That is why LTE takes up so much batter across devices.
One of the best battery saving options (in my opinion) is to only use cmda unless you need the LTE - you can change that under mobile network options.
I am willing to bet people wanted to know IF they had cell reception in an area with out having to disconnect from wifi to see a graphical representation.
It isnt as sinister as it seems Keep in mind too that in order to do both voice and data, your data goes over LTE and your voice uses CDMA (that is off memory, i may have the bands reversed) so you are using two radios at once... welcome to the world of LTE battery draid

azwildfire said:
If you read the manual, the one that turns BLUE is the active data connection.
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You had me at "if you read the manual"
This sounds about right. I had previously glossed over this because of being so used only seeing WiFi or Cell data. Makes sense now, thank you.

azwildfire said:
Actually I think you two are mis understanding the icons. If you read the manual, the one that turns BLUE is the active data connection. Some things (like the Verizon app) can only go over the verizon network. Additionally, you will ALWAYS have power to the cell radio (how else do you recieve an incomming call or a SMS?)
That is why LTE takes up so much batter across devices.
One of the best battery saving options (in my opinion) is to only use cmda unless you need the LTE - you can change that under mobile network options.
I am willing to bet people wanted to know IF they had cell reception in an area with out having to disconnect from wifi to see a graphical representation.
It isnt as sinister as it seems Keep in mind too that in order to do both voice and data, your data goes over LTE and your voice uses CDMA (that is off memory, i may have the bands reversed) so you are using two radios at once... welcome to the world of LTE battery draid
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That's actually incorrect. There's a good amount of talk going around that the data radios (both 3G and 4G) aren't being turned off when switching to wifi, and causing even more battery drain. In GingerBread, the icons turning a different color (blue on Blur, green on basically everything else) doesn't mean it's got an active data connection, it means it's got an active connection to the Google services (for sync, etc). Every other phone shuts of the radios when connected to wifi, including the Charge, Thunderbolt and Revolution. And while you're connected to wifi, everything non-data related (text messages, calls, voicemail) is done over 1X, which is just the signal bars.

Interesting, so which radio keeps the 1x connection alive? how does it work when i am NOT on wifi and can browse the web and email while on a phone call? (Couldnt do that on my incredible)
And while comparing battery stats, cell stand by has a larger percentage on my T-bolt then it does on my Bionic (I checked them this morning, both were unplugged from the chargers when i went to bed)

They're separate radios, the 1X radio doesn't use nearly as much power so it can stay on all the time.

Are you implying the Bionic has 3 antenna? 1x - CDMA - LTE as all seperate antenna?
THe FCC filing shows only two. One that is a combined CDMA/LTE and one that is a combine WIFI and Blue tooth.
http://cdn.androidcentral.com/sites...w550h500/postimages/9274/droid_bionic_fcc.jpg
I am just curious as to your understanding. I think this is a healthy chat
And your previous mention of the icon color changing when they connect to Google services sort of affirms that it is the data connection (since I imagine they have to use the data connection to connect to google)

Interesting test. Wifi is connected, turned off mobile data under data settings and the 3g icon that looked to be connected disappeared... but I still had a data connection.
Is there an app that will allow you to write the logic- if wifi is on, turn off mobile data, and reset when wifi is turned off?
Sent from my DROID BIONIC using XDA App

I'm getting really bad battery life. Right now I am connected to wifi. I have 3 icons....wifi, 4g LTE, and signal bars. All are blue except the up/down arrows under 4G. What does this indicate?

There seems to be a bug where the phone doesn't shut off the radio when turning on WiFi, I've reported it to motorola.

bobreiter said:
Interesting test. Wifi is connected, turned off mobile data under data settings and the 3g icon that looked to be connected disappeared... but I still had a data connection.
Is there an app that will allow you to write the logic- if wifi is on, turn off mobile data, and reset when wifi is turned off?
Sent from my DROID BIONIC using XDA App
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Tasker is a great app that should let you do that
It is paid though, but I don't mind paid apps if they are good (no different than donating to the devs here in my opinion)

Force phone to stay on lte without losing calls and text?

Is there a way to make my phone ALWAYS connect to lte whenever there is ANY signal for it without losing calling and text? I know that if you go into *#*#4636#*#* you can force the phone to stay lte, but if I do that I loose calling and texting capabilities.
My problem is my building has lte signal thought, but my phone thinks 3g is better in the first floor so it connects to it... Forcing it to lte with *#*#4636#*#* works for data, but calls and text don't go through at all.
Sprint n6 stock 5.1 rooted unlocked w/twrp recovery
Sent from my Nexus 6 using XDA Free mobile app

reinaldistic said:
Is there a way to make my phone ALWAYS connect to lte whenever there is ANY signal for it without losing calling and text? I know that if you go into *#*#4636#*#* you can force the phone to stay lte, but if I do that I loose calling and texting capabilities.
My problem is my building has lte signal thought, but my phone thinks 3g is better in the first floor so it connects to it... Forcing it to lte with *#*#4636#*#* works for data, but calls and text don't go through at all.
Sprint n6 stock 5.1 rooted unlocked w/twrp recovery
Sent from my Nexus 6 using XDA Free mobile app
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if sprint doesnt have volte, then you can not. im using tmobile, which is using volte, so i enable lte only, and get calls and texts. if no volte, then you wont get calls or texts via lte.

simms22 said:
if sprint doesnt have volte, then you can not. im using tmobile, which is using volte, so i enable lte only, and get calls and texts. if no volte, then you wont get calls or texts via lte.
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I was thinking more along the lines of telling the phone 3g data doesn't exist or is always worse, so if it sees lte it should grab it but at the same time staying connected to cdma so phone calls work
Sent from my Nexus 6 using XDA Free mobile app

reinaldistic said:
I was thinking more along the lines of telling the phone 3g data doesn't exist or is always worse, so if it sees lte it should grab it but at the same time staying connected to cdma so phone calls work
Sent from my Nexus 6 using XDA Free mobile app
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itll always choose the best signal thats available to it. if it happens to be 3G, then thats what itll be. so no volte on sprint yet?

simms22 said:
itll always choose the best signal thats available to it. if it happens to be 3G, then thats what itll be. so no volte on sprint yet?
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No volte.
Right the problem is my phone isn't choosing the truly BEST signal. 3g in my first floor gets 0.2-0.6 Mbps whereas my LTE there is 0.5- 1.3 Mbps yet my phone connects to 3g...
Sent from my Nexus 6 using XDA Free mobile app

reinaldistic said:
No volte.
Right the problem is my phone isn't choosing the truly BEST signal. 3g in my first floor gets 0.2-0.6 Mbps whereas my LTE there is 0.5- 1.3 Mbps yet my phone connects to 3g...
Sent from my Nexus 6 using XDA Free mobile app
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that sucks

Same problem here. LTE is 5mb/s and 3G is 200kb/s and my phone wants to switch to 3G constantly

Make sure it isn't set to global. Will handoff even more.

I have Samsung Note 4 N910C Android 5.1.1. I went to service menu by dialing *#2263# and I set it LTE only and my signals are lost. Now can anyone help me. How can I set it to Automatic again.

Zulaid khan said:
I have Samsung Note 4 N910C Android 5.1.1. I went to service menu by dialing *#2263# and I set it LTE only and my signals are lost. Now can anyone help me. How can I set it to Automatic again.
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dial *#*#4636#*#*, select phone info, scroll down and srlwct lte/gsm/cdma.. but anyways, this is a nexus 6 forums, not a samsung note forums.

reinaldistic said:
Right the problem is my phone isn't choosing the truly BEST signal. 3g in my first floor gets 0.2-0.6 Mbps whereas my LTE there is 0.5- 1.3 Mbps yet my phone connects to 3g...
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You do realize that a quicker speed does not mean a better signal reception, right?

PaisanNYC said:
You do realize that a quicker speed does not mean a better signal reception, right?
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right, that's also what the phone thinks, I want the speed not the reception. why would I want reception? I don't do phone calls like a caveman

I do realize the LTE fringes on -120dbm, but the few seconds it loses lte isn't enough to affect browsing, yet my phone thinks it's signal doomsday and switches to 3g

Advanced Calling

I did a search, found a few threads in the non-Turbo forums. I've done some research, and some of the data is confusing. As I just got the Droid Turbo a few days ago, thought I'd pose a couple of questions here -
What I do know is voice goes over data network (VoLTE). I assume when in a 3G area, it reverts to CDMA? From the reading I've done, if in a 3G area and move into a 4G area, the call is not dropped. However, going from a 4G area to a 3G area, the call is dropped?
If I have it enabled, does the receiver on the other end have to have Advanced Calling? If not, is there still an advantage to using it?
From other reading, if both ends are on 4G and have Advanced Calling enabled, the sound quality is supposed to perfect. True?
Thx

You are correct about the call dropping going from 4g to 3g. The network cannot switch between volte and 1x, it works going from 3g to 4g because the phone stays on 1x. The person you are calling does not need to have advanced calling but if they do not have it the only benefit is the ability for talk and data at the same time.

97bandit said:
You are correct about the call dropping going from 4g to 3g. The network cannot switch between volte and 1x, it works going from 3g to 4g because the phone stays on 1x. The person you are calling does not need to have advanced calling but if they do not have it the only benefit is the ability for talk and data at the same time.
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Thx for the reply. After a bit more digging, found this -
http://www.verizonwireless.com/support/advanced-calling-faqs/