I'm using Cyanogen Mod 7.0.3 with 2.6.32.28 kernel. Each time I make a call, the data network symbol disappears. This is not the case when I am on WiFi. It does not bother me too much, but if it is a fixable bug, I would like to know how to fix it.
If you are not on hspa you will loose your data when ur making a call.
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I often miss calls when I'm on 2G saving battery and my friends are chatting up a storm in Whatsapp groupchat for exactly this reason.
nod the problem is because you're in 1 or 2G, you said when you use wifi the problmem does not exist, that is because there are separate line between data and voice. Like other has noted above, try to stay at 3G which does have separate data and voice so you won't loose data call when you're doing voice call.
I notice that happens to me sometimes too. Always wondered why sometimes the data went away and sometimes it didnt. Thanks for some clarification!
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A few times today, when on a call, my 3G connection drops and a baloon pops up saying "connection lost, please reconnect after your call", or something like that. Of course as soon as i hang up, the data connection comes back... but this seems rather annoying.
Anyone else seen this?
That happens to me all the time when I'm surfing the web and a call comes in. The Hermes doesn't have the ability to have data going while voice is active.
motionmind said:
That happens to me all the time when I'm surfing the web and a call comes in. The Hermes doesn't have the ability to have data going while voice is active.
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Hmmm.... cingular better update thier web site then.
Use this all-in-one global handheld for email, simultaneous voice and data, and other wireless application needs at broadband speeds.
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It used to work for me on my 8525, but not anymore.
motionmind said:
That happens to me all the time when I'm surfing the web and a call comes in. The Hermes doesn't have the ability to have data going while voice is active.
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this is partially false... The 8525/hermes will keep a data connection active while voice is going in 3G... but voice and data will not work together while in E.. And if you are in a call and your 3G signal becomes to weak it will switch to E causing your data to drop and your phone can not reconnect to 3G until the call is ended. The only time this really ever happens to me is when i am driving, but thats because of few weak spots here in st. louis.
shogunmark said:
this is partially false... The 8525/hermes will keep a data connection active while voice is going in 3G... but voice and data will not work together while in E.. And if you are in a call and your 3G signal becomes to weak it will switch to E causing your data to drop and your phone can not reconnect to 3G until the call is ended. The only time this really ever happens to me is when i am driving, but thats because of few weak spots here in st. louis.
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Sounds plausible to me... thanks!
shogunmark said:
this is partially false... The 8525/hermes will keep a data connection active while voice is going in 3G... but voice and data will not work together while in E.. And if you are in a call and your 3G signal becomes to weak it will switch to E causing your data to drop and your phone can not reconnect to 3G until the call is ended. The only time this really ever happens to me is when i am driving, but thats because of few weak spots here in st. louis.
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I'm using radio version 1.54.07.00 ans when I am connected via 3G (says H) and get a voice call then it disconnects my data session. Very annoying. What radio are you using that will allow simultaneous voice/data on 3G?
I'm on ATT/Cingular out in Las Vegas if that makes a difference.
I've got a T-mobile UK touch plus.
Currently, if I am using the data connection then all incoming voice calls are being sent to voicemail. This occurs with a GSM connection, which is part of the spec and is fine, but also with the 3G connection, which should allow the incoming voice call through. I have spoken to t-mobile and they acknowledge this problem and say they are working to fix it.
Is it likely there will be a fix for this? Is there a radio ROM already available that fixes the issue?
Sorry if this has already been covered - I searched with a pretty wide variety of terms and didn't find anything conclusive.
I have the same phone, same network... and it still rings while i have the "3g connected" symbol (3g with two arrows pointing left and right) showing.
Havent tried while connected to GPRS cuz im not sure how to force it into G mode while im near a phone.
Sorry, I should have been clearer - the phone will ring with an unused 3G connection, but not when data is actually being sent/received. This is the behaviour you would expect from GSM, but the 3G spec should allow voice calls through regardless of data - my Vodafone v1605 has no problem with this. T-mobile say it is the device not the network, I just wonder how likely I am to get a fix for this? It could be a problem with activesync using the data connection quite frequently.
A good way to test it is with google maps, or something that will maintain a constant connection, then call your phone. 3G should put the call through, but it will be rejected to voicemail instead.
FYI to put into GSM mode;
Settings>Phone>Band>Set top option to GSM, leave bottom on Auto
same problem here. but i only expreienced that randomly
i know that gprs can not handle data and voice. but 3g should, right?
Yes, 3G should be able to run voice and data streams simultaneously without any problems. I'm surprised there is not more interest in this because it seems to be a pretty major problem with the device if you cannot receive calls while browsing or otherwise using the data connection.
Me too
I experienced this too. I have an direct HTC Touch dual rather than the t-mobile branded version but I'm using a t-mobile sim. I use Exchange Activesync and am missing calls all the time.
fwiw, i experience the same with a Nokia e61 on 3-AT network with exchange active.
It seems that T-mobile have fixed their network today to allow calls while using data. Bonus.
I got an email while on a call without wifi. I'm in dallas. Anyone else getting data and voice now?
Has been possible since the beginning of time as long as you are on 3G
I concur. ↑
Sent from my Nexus One using XDA App
Really? I've never been able to do that until recently.
Usually when I'd start a call I'd lose the 3G icon and if I received email while in call it wouldn't show up until after I hung up.
Couldn't mess with data without wifi.
Used to do this on my cliq and G1 as well...
Odd.
Also been doing both (on TMob 3G) since February...
Any gsm phone can do that, but it is impossible for cdma
Your phone may have been set to WCDMA only up until now.
chalk that up as a win for GSM and a lose for CDMA
JCopernicus said:
Your phone may have been set to WCDMA only up until now.
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WCDMA is 3G, it has nothing to do with CDMA
In a weak 3G signal area, the phone usually does a handover and transfers the call to the GSM network when the 3G signal falls under some threshold, and GSM doesn't support simultaneous voice and data (icon disappears while on a call)
maybe you have better 3G coverage now and your nexus doesn't need to go the GSM route
I've noticed problems with using data and voice together too. What seems to happen is that it works ok at first, but the instant you lose 3G it never comes back until the call is over, no matter how good your signal. Very frustrating when trying to use your data while on a long call.
Both AT&T and T-Mobile (as can any GSM carrier worldwide) can do voice and data at the same time as long as your phone has a "3G" connection visible while on the phone call. This has always been possible.
What you may see happen is that if you wrap your hands around the bottom of the phone during a call, the signal may drop to "E" or Edge. You can't use data and voice at the same time if your phone is on Edge.
To alleviate this, use a wired or Bluetooth headset, or hold the phone with your fingers rather than your whole palm.
Paul22000 said:
What you may see happen is that if you wrap your hands around the bottom of the phone during a call, the signal may drop to "E" or Edge. You can't use data and voice at the same time if your phone is on Edge.
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Have you ever seen my problem where once the signal drops to Edge it will never go back to 3G? It doesn't seem like normal behavior to me but it seems to always happen when I need my data during the call. I've been stuck on multi-hour calls where my phone refused to go back to 3G almost from the beginning, and then the second I hang up the phone goes right back to a 3G signal with full bars again. Very frustrating!
pfmiller said:
I've noticed problems with using data and voice together too. What seems to happen is that it works ok at first, but the instant you lose 3G it never comes back until the call is over, no matter how good your signal. Very frustrating when trying to use your data while on a long call.
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the ATT 3G network is not setup to do handoffs from gsm back to 3g. it currently will ONLY handoff from 3G to gsm during a call, and if you are still on your call, it will not switch back until you hang up. in the future this can be enabled both ways. tmobile apparently is setup the same way for now. so you're experience is normal until they reconfigure their network.
Actually it depends on the phone hardware. It IS possible to use GPRS and voice as well if the hardware supports it, its not only something available on 3G/UMTS/WCDMA. There is a pretty even split between class A and class B phones these days, you should look up the specs of the phone you're using.
Nearly all 3G devices allow you to use data and voice together since it isnt timeslot based and so voice and data is logically split and not time divided. This means you dont need specially designed hardware to do it, just the processing power to do it.
Class A
Can be connected to GPRS service and GSM service (voice, SMS), using both at the same time.
Class B
Can be connected to GPRS service and GSM service (voice, SMS), but using only one or the other at a given time. During GSM service (voice call or SMS), GPRS service is suspended, and then resumed automatically after the GSM service (voice call or SMS) has concluded.
Class C
Are connected to either GPRS service or GSM service (voice, SMS). Must be switched manually between one or the other service.
@kam187, thanks for that. I've been with T-Mobile since they were Voicestream, about 10 years now. And I thought I was making voice and data connections with my Nokia phone years ago, before their 3G rollout.
Here is the last phone I used before going the G1 route.
http://www.gsmarena.com/nokia_e61-1322.php
Yep E61 is on nokia's list of Class A devices:
http://wiki.forum.nokia.com/index.p...s_supporting_GPRS_Class_A_(Dual_Transfer_Mode)
I work at my local grocery store. Inside the store, there's little to no signal with 2g/3g...but when I turn on 4g, I have nearly full signal. I tried sending some texts while 4G was active, but they said it could not be sent due to not having 2g/3g signal. Same goes for phone calls. Does 4G really only apply to my browser/speed test? Pretty lame if you ask me. I should be able to send texts through 4G.
Is it just a setting on my phone?
Overstew said:
I work at my local grocery store. Inside the store, there's little to no signal with 2g/3g...but when I turn on 4g, I have nearly full signal. I tried sending some texts while 4G was active, but they said it could not be sent due to not having 2g/3g signal. Same goes for phone calls. Does 4G really only apply to my browser/speed test? Pretty lame if you ask me. I should be able to send texts through 4G.
Is it just a setting on my phone?
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You can't send SMS or Phone calls over 4g. The SMS and Voice rely on 1xrtt protocols which 4G doesn't support ATM. Give it time - its new tech still. At least you have 4g near you - i have to drive like 100 miles.
4g is data only. 3g is data only. 2g is voice and text. I'm not sure, but you may be able to send texts via google voice over your data connection.
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Kcarpenter said:
You can't send SMS or Phone calls over 4g. The SMS and Voice rely on 1xrtt protocols which 4G doesn't support ATM. Give it time - its new tech still. At least you have 4g near you - i have to drive like 100 miles.
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I see. It's not a huge problem because I can still use Pandora while working. Muhahhaaha
Thanks
One more question, sometimes tether doesn't pick up my 4G signal, is that a setting issue?
I haven't seen any reports of bluetooth or wifi tethering not working while in a phone call but that is what is happening to my nexus 4. I'm using Purity rom with a hybrid radio and have LTE enabled. Whenever I make a phone call, the data connection type letter on the signal bars in the notification drop down disappears. It's like the data connection completely stops.
If I am not tethering and make a phone call, the data connection type letter stays active and I can use the connection with various apps. It only seems to cut out when I am tethering with either bluetooth or wifi. Is this a normal problem? I was thinking I might have to apply the tmobile tethering fix:
http://forum.xda-developers.com/nex...s-4-lte-lte-tethering-hotspot-t2416822/page41
to fix it but wasn't sure it was still really necessary in 4.4.4 or that this problem was even related. I thought that fix was for if you kept being redirected to the upgrade page of tmobile. My plan is truly unlimited 4g (not the 2gb of high speed data then throttling down to 2g speeds) and tethering is included. I'm not being redirected anywhere. The data connection just stops. I was thinking this was a problem with 4.4.4 since it has never happened to me on other versions.
I'm pretty sure that the way Mobile data works makes it impossible to both call and receive data at the same time.
Mine does the same thing on my sprint galaxy note 4. I am rooted using the native tether (unpaid). As soon as I receive a call, tether looses connection and stops.
I'm coming from a sprint galaxy note 2 with the same setup. I've never had this problem in the past. I was able to tether and use other apps during calls. The only difference, from what I can tell, is that my note 2 said "4g",and my note 4 says "LTE". Help please....
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