[Q] SMS delay to iPhones - AT&T Samsung Galaxy Note 4

So I apologize if this type of issue has already been addressed but I couldn't find anything. My girlfriend lives in an area with limited cell reception but has a strong WiFi signal. She claims that when I respond to her texts when she's at home with my Note (used all kinds-gosms and chompsms currently) there's a significant delay in contrast to the immediate responses from her friends using their iPhones. She further explained that she needs to place her phone in particular areas with a signal just to receive them whereas she doesn't for those using iPhones. I'm not sure if this is an issue about the how SMS texts are sent through the network or WiFi by the app itself or whether or not it's a setting I could fix. I don't know why there would be any difference but any help or insight is appreciated.

J03-84 said:
So I apologize if this type of issue has already been addressed but I couldn't find anything. My girlfriend lives in an area with limited cell reception but has a strong WiFi signal. She claims that when I respond to her texts when she's at home with my Note (used all kinds-gosms and chompsms currently) there's a significant delay in contrast to the immediate responses from her friends using their iPhones. She further explained that she needs to place her phone in particular areas with a signal just to receive them whereas she doesn't for those using iPhones. I'm not sure if this is an issue about the how SMS texts are sent through the network or WiFi by the app itself or whether or not it's a setting I could fix. I don't know why there would be any difference but any help or insight is appreciated.
Click to expand...
Click to collapse
You can fix this by simply getting a new girlfriend..
No, seriously.. i wonder if this has something to do with how the iphone tries to use imessage for the txt first.. then tries the conventional method.
That would explain why she, with good wifi signal can get txts quickly from other iphone users. But then when a non iphone tries to communicate she has to put her phone in a specific place (presumably to get a better gprs signal) before it will get your txt.
Just guessing here..
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app

xlr8shun said:
You can fix this by simply getting a new girlfriend..
No, seriously.. i wonder if this has something to do with how the iphone tries to use imessage for the txt first.. then tries the conventional method.
That would explain why she, with good wifi signal can get txts quickly from other iphone users. But then when a non iphone tries to communicate she has to put her phone in a specific place (presumably to get a better gprs signal) before it will get your txt.
Just guessing here..
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
I was thinking the same thing, when I got my Note 4 I had to unregistered my number from iMessage, my last phone was an iPhone an anybody with an iPhone couldn't text me, since my number was still under iMessage.. it was very annoying but since I haven't had an issue.
Sent from my SAMSUNG-SM-N910A using Tapatalk

Related

[Q] Wifi calling?

does anyone know of an app that allows free wifi calling?...i've seen a bunch of stuff on google about google voice being able to or something like that but i can't figure it out...and when i say "wifi calling", i mean like what t-mobile offers, just using the wifi connection to make calls to any landline or cell phone without needing to add friends or anything like that..
Thanks in advance
nope
I dont think there are any apps for that, ive looked before to no avail
I know that Fring will allow you to call any phone for a per min call, and they have pretty cheap rates. I think in the US 5 bucks gets you 500 min of calls or something like that at .9 cents a min to us land and cell, but you do get a new number.
Also sip in 2.3.3 allows some kind of backward calling with google voice. Look into that if you want to keep your number the same.
Also Sprint offers the airave. Look into that if you have a signal issue at your house.
But WIFI calling is only T-Mobile and will never work for another carrier unless that carrier makes their own version.
GrooveIP
I use it for work, especially when I am almost over my mins or have poor signal
Sent from my Misfit Speedy Evo using the XDA app
detcup4evr said:
GrooveIP
I use it for work, especially when I am almost over my mins or have poor signal
Sent from my Misfit Speedy Evo using the XDA app
Click to expand...
Click to collapse
This. My only gripe is there are a few numbers they block (google).

{REQUEST} T-Mobile Wifi Calling

Is there an app that I can download somewhere or is this something that someone could throw together for use with the Nexus?
I work right outside of Tmobile service area. I usually get about a bar or 2, on a good day. I rarely ever use the phone, didnt even realize these things could make calls anymore!
Anywho, I had an Amaze which had wifi calling and the call quality would be crystal clear over wifi calling and did wonders for saving battery.
Any help would be much appreciated!
I was disappointed to find out also that it was unavailable on the GNex and from what I read on it it's near impossible to port it over.
An alternative may be a combo of Google Voice & Groove IP, I use that combo on my Moto Xoom Tablet and it work fine.
OK so maybe I don't understand how groove IP works....but when I make a call over wifi the phone is still looking for a mobile signal. While I was in the call the phone showed one bar or service. So at that point isn't the lack of cellular signal still going to eat away at my battery?
I suppose grove is made more for a situation where you have no service at all? I tried putting the phone in airplane mode and make a call that way which does work.....but then your screwed with the texts......ugh....FML! Ha.
Sent from my Galaxy Nexus using XDA
splsales said:
OK so maybe I don't understand how groove IP works....but when I make a call over wifi the phone is still looking for a mobile signal. While I was in the call the phone showed one bar or service. So at that point isn't the lack of cellular signal still going to eat away at my battery?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Heres a screenshot showing one bar even when I am on wifi within a call over groove. If i remember correctly when wifi calling was being used on the Amaze, the mobile signal would be turned off completely.
Hopefully with the One S out now we'll be able to get wifi calling? Anyone heard any progress on that?
grim82 said:
Hopefully with the One S out now we'll be able to get wifi calling? Anyone heard any progress on that?
Click to expand...
Click to collapse
Hopefully we've got something coming....if so my battery will last for ages!
Sent from my Galaxy Nexus using XDA
Download "Viber". This is an OTA/WIFI calling app. Also dl "phone + WIFI on/off" widget. Both available in the market.
Sent from my Galaxy Nexus using XDA
Viber requires both parties to have the app installed if I'm not mistaken. I think that is unrealistic.
Sent from my Galaxy Nexus using XDA
wifi was never crystal clear on the t989
that is why we left tmobile it would cut out swell groove should work fine why dont you disable data then turn wifi on and link up tjat way it will work like a charm i promise
I'm not sure I follow you too well. I'm still a noob. Would you care to elaborate on that.
Sent from my Galaxy Nexus using XDA
Try the Vonage app. You can make calls over Wifi and data the other person does not need to have the Vonage app to receive calls. It's only good for making outbound calls on Wifi or data. (Doesn't count against mins either) If you receive a call it goes through regular cell service and bucket of mins. You can make calls to any where in the US for free. Right now you can use up to 3,000 mins a month for free to make calls. (Promo with no end date set)
But in order to receive calls the radio would have to be left on or else they will go directly to voicemail right. Which means I would have to leave the radio on.....so once again I would have low reception leading to eating up better. But anyways I think you maybe mistaken....vonage app says the other person must have the app. FML! Ha.
Sent from my Galaxy Nexus using XDA

Can you text over wifi instead of sprint network????

Sometimes at home can't get damn 3g signal. So I got wifi how do I send messages using wifi???? ****'s very annoying.
Text is a voice service it doesn't use data at all. If you can't text making/receiving phone calls must be hard at your home as well. Over wifi Google voice or a similar app from the play store would be your best bet
Yes, you can. The best way to do it would be Google Voice, but there are other apps out there capable of it. The way the carriers handle it (in this case Sprint) is over the network... GSM or CDMA. 3g is always an extension of the mobile voice network... this is why you typically cannot make calls and browse the web while on 3g (although Sprint has found a way to defeat this with the Viper and the Evo LTE, though a second chipset). 4g runs on a different band than 3g does, which means it doesn't affect your calling / text capabilities.
I know that is more info than you asked for. The long and short of it is that you need an app designed to run on Wifi, rather than mobile data, but it is possible.
+1 for google voice. I even use it to text from my Nook which doesn't even have 3g.
Sent from my SPH-D700 using XDA
I put mine in airplane mode when I'm home and used voice for everything
Sent from my SPH-D710 using xda premium
G voice.. or complain to sprint and get a airave and hook it up to your wireless router and have signal in your house .. or get roam control (assuming your rooted) and roam when your home and use your wifi for your data needs and sure youll be fine since wont need to worry about sprint and data roaming
Sent from my SPH-D710 using XDA
elliwigy said:
G voice.. or complain to sprint and get a airave and hook it up to your wireless router and have signal in your house .. or get roam control (assuming your rooted) and roam when your home and use your wifi for your data needs and sure youll be fine since wont need to worry about sprint and data roaming
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
I have to use roam control and wifi at my house. I spend most my time in my game room in the basement and.my sprint service sucks down there. But I get perfect signal roaming.
You guys reading?
If you can make a call at home you can text brother
Sent from my awesomely EPIC Phone
Rooster85 said:
You guys reading?
If you can make a call at home you can text brother
Click to expand...
Click to collapse
Uh, slvrap1 already stated this in so many words above. We're discussing workarounds now. And yes, Google Voice is the easiest way to go if you're using an Android phone.
A lot of the information in this thread is wrong...
SMS is actually a function over 1xRTT (just like voice calls) not EVDO (3g)... This is why you can recieve sms messages while on a phone call but not get other data services at the same time...
You never make a phone call or transmit SMS messages over EVDO, it is a data only connection protocol..
This is why SMS are limited to a certain number of characters, because they are actually a hack of the control channel in 1xRTT communications...
Simplified version:
REAL SMS is a hack of the control channel between cell phone and tower. It has nothing to do with a data connection so it can not be transmitted via EVDO, WIFI or any other data connection...
Note: When I state REAL SMS that is because services like google voice and others are all VOIP connections that use data connections to transmit messages and phone conversations... There is character limit in VOIP texting but they impose it because you can send it to a REAL SMS and that has character limitations built in..
numus said:
A lot of the information in this thread is wrong...
SMS is actually a function over 1xRTT (just like voice calls) not EVDO (3g)... This is why you can recieve sms messages while on a phone call but not get other data services at the same time...
You never make a phone call or transmit SMS messages over EVDO, it is a data only connection protocol..
This is why SMS are limited to a certain number of characters, because they are actually a hack of the control channel in 1xRTT communications...
Click to expand...
Click to collapse
Correct. Texting has nothing to do with 3g. You can find an app that can use 3g or wifi to text o stead of the network. This is what my friend uses on AT&T so they don't have to pay for text messages. They use the network.
Sent from my SPH-D710 using xda premium
musclehead84 said:
Correct. Texting has nothing to do with 3g. You can find an app that can use 3g or wifi to text o stead of the network. This is what my friend uses on AT&T so they don't have to pay for text messages. They use the network.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
That actually just sends the message via the data connection to a server, which then relays that into the carrier's system and is then transmitted to the recievers phone via the 1xRTT control channel... They aren't actually texting a phone, they are sending an instant message to a server that then knows how to convert and relay that into a text message.
Note: I use 1xRTT because we are on a CDMA2000 system... for AT&T, T-Mobile and other GSM it works on their *2g* voice connection... I forgot what it is called at this moment...
Use roam control at home, Verizon probably covers you better. 1x roaming is free other than your minutes
deziking said:
Sometimes at home can't get damn 3g signal. So I got wifi how do I send messages using wifi???? ****'s very annoying.
Click to expand...
Click to collapse
Well let me say this. I was at a music festival in March. Had some signal bars but could not make calls or texts. Incoming or outgoing.
When I was in a certain stage I tried again (text) they all failed. I tried to turn on wifi and found an open network! Tried to text. Success!
So in my experience I say yes! Anywhere else I could not text. So when I needed to text I would return to that stage and connect to wifi.
Sent from my SPH-D710 using Tapatalk 2
numus said:
A lot of the information in this thread is wrong...
SMS is actually a function over 1xRTT (just like voice calls) not EVDO (3g)... This is why you can recieve sms messages while on a phone call but not get other data services at the same time...
Click to expand...
Click to collapse
I can text and surf web/Tapatalk while in phone call?!!
Sent from my SPH-D710 using Tapatalk 2
tt281gt said:
I can text and surf web/Tapatalk while in phone call?!!
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Do you happen to be connected to wifi?
Sent from my SPH-D710 using Tapatalk 2
tt281gt said:
Well let me say this. I was at a music festival in March. Had some signal bars but could not make calls or texts. Incoming or outgoing.
When I was in a certain stage I tried again (text) they all failed. I tried to turn on wifi and found an open network! Tried to text. Success!
So in my experience I say yes! Anywhere else I could not text. So when I needed to text I would return to that stage and connect to wifi.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
More likely when you moved you connected to a less loaded tower, being connected to wifi was just a coincidence.
tt281gt said:
I can text and surf web/Tapatalk while in phone call?!!
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Well if you are connected to WiMAX or Wifi.. yes you can make a phone call and surf the web at the same time.. If you are on EVDO, the only way that is possible is if you have 2 cell phones... One to surf the web and one to make calls
tt281gt said:
Well let me say this. I was at a music festival in March. Had some signal bars but could not make calls or texts. Incoming or outgoing.
When I was in a certain stage I tried again (text) they all failed. I tried to turn on wifi and found an open network! Tried to text. Success!
So in my experience I say yes! Anywhere else I could not text. So when I needed to text I would return to that stage and connect to wifi.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Your experience is only coincidental... It is physically impossible because the SMS system is built on the 1xRTT control channel... It has nothing to do with the data connection in any way shape or form... It is a hack on the tower identification and protocol transmission channel.
It is like if you take out a frozen piece of meat, turn on the microwave and leave the piece of meat outside the microwave (never put it in the microwave) and claim the microwave is defrosting the meat...
Rooster85 said:
You guys reading?
If you can make a call at home you can text brother
Sent from my awesomely EPIC Phone
Click to expand...
Click to collapse
Are you reading? He obviously cant text at home.. he did say 3g but probably doesnt know what HES talking about.. i think its safe to say hes getting NO signal since he is unable to send text messages.. thus want other options to send text messages which people are giving.. he doesnt care how the network works and how it uses 1xrtt and not his 3g radio.. he just wants optiong to improve him sending messages at home which no matter how we put it, theres only a few options we've already determine which is 1: google voice or other voip messaging app. 2: using roam control to make sure he has signal to send it regularly while roaming. 3: can get airrave and hook up to his wifi at home to bost his signal inside of the house. 4: leave his house and go walk around til he can send one lol 5: someone said theres apps which allow you to send it over data which then gets converted in the tower and sent as normal.. good luck OP! Probably already found a way just wanted to try and get the thread back on topic for ya lol
Sent from my SPH-D710 using XDA
elliwigy said:
Are you reading? He obviously cant text at home.. he did say 3g but probably doesnt know what HES talking about.. i think its safe to say hes getting NO signal since he is unable to send text messages.. thus want other options to send text messages which people are giving.. he doesnt care how the network works and how it uses 1xrtt and not his 3g radio.. he just wants optiong to improve him sending messages at home which no matter how we put it, theres only a few options we've already determine which is 1: google voice or other voip messaging app. 2: using roam control to make sure he has signal to send it regularly while roaming. 3: can get airrave and hook up to his wifi at home to bost his signal inside of the house. 4: leave his house and go walk around til he can send one lol 5: someone said theres apps which allow you to send it over data which then gets converted in the tower and sent as normal.. good luck OP! Probably already found a way just wanted to try and get the thread back on topic for ya lol
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
Google voice will only allow you to text over your google voice phone number... If you use google voice to manage your SMS and text using your phone number, it will still send it via SMS (1xRTT control channel) and will fail There is no alternative when you want to use your actual phone number except for utilizing the sprint web tool.. log into your account and send a text message from the web tool.\
Note: I am one of those people that will correct wrong information if i see it, even if it doesn't 100% pertain to the original post. IMHO it is the only way to ensure people don't start repeating the wrong information and exponentially make it harder to teach people the correct answer.

Note II drops WIFI Calling??

Hey I'm a 1st to T-Mobile i'm testing it out before I switch all my lines from Verizon. The question I have is that both the Note II and the GS3 that I have seem to drop the Wifi calling feature randomly. I thought at 1st it may have been some sort of power saving option but it seems to happen in frequently. (Doesnt matter if I'm close to the Router or not)
Is this common? Or am I the only one that has had this happen?
Thanks for any input!
-Scoob
Mine does the same thing I just turned off the wi fi calling app and it now works fine
Sent from my SGH-T889 using xda app-developers app
somethinboutpat said:
Mine does the same thing I just turned off the wi fi calling app and it now works fine
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
I'm not sure what you mean by turning the App off? When turning the WIFI calling app off does that not mean you are unable to use the feature?? LOL- I have to have this as I have zero reception at my home.
Thanks for letting me know!
-Scoob
scooby-snack said:
Hey I'm a 1st to T-Mobile i'm testing it out before I switch all my lines from Verizon. The question I have is that both the Note II and the GS3 that I have seem to drop the Wifi calling feature randomly. I thought at 1st it may have been some sort of power saving option but it seems to happen in frequently. (Doesnt matter if I'm close to the Router or not)
Is this common? Or am I the only one that has had this happen?
Thanks for any input!
-Scoob
Click to expand...
Click to collapse
Same here
Sent from my SGH-T889 using xda app-developers app
This is happening to me as well.
@ scoob go to setting, more setting, deselect the wifi calling app and it should work for you my coverage at my place is between 0 and 1 bar so this should help
Sent from my SGH-T889 using xda app-developers app
mine goes on and off on both my new note 2 and my wife's new galaxy s3. really aggravating. worse on my phone, when in wifi calling, it only answered calls like 1 out of every 10 times, otherwise they went to voicemail. I took the sim out of mine, then put it back in and pushed it in and out and in the holder a few times and now it seems to receive calls in wifi mode but still always in and out and error to connect and such.
My experience with Wifi-Calling has been nothing but troublesome. It's really not reliable at all, sometimes calls comes through sometimes don't.. and when it does come through I can hear the caller but caller cannot hear me. This is quite common problem with wifi-calling and i given up.
If you get even a 1bar of reception near by the window, I suggest calling T-Mobile and getting their Cel-Fi device (Free of charge but has to return when you leave T-Mobile). 1~2 bar by the window will give you full 4bar reception throughout the house on 4G. Only requirement is that you must be living in single house, can't ship out to house that are connected by or close by. I live in townhouse and I just told them I live in single house and got the device in 3 days. =)
Wi-Fi calling is a disaster. For me, incoming audio drops constantly, but the party I am calling can hear me fine. On other occasions, the call will just randomly drop. Came from a Sensation where Wi-Fi calling was perfect. There does not seem to be any resolution... I have spent hours talking to tech support and they have replaced the device with no improvement. I have also had my ISP out and they have verified that my connection is fine. I have even changed the router out... same issues.
With my wifi calling, as soon as I turn kt kn my bars at home would drop where I would hardly get any service. As soon as I turn wifi calling off I magically get bars. So I leave it off and now I get bars pretty much everywhere I go....almost
from my Galaxy Note 2 using Tapatalk 2
Nellyinda803 said:
With my wifi calling, as soon as I turn kt kn my bars at home would drop where I would hardly get any service. As soon as I turn wifi calling off I magically get bars. So I leave it off and now I get bars pretty much everywhere I go....almost
from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
With wifi calling on, it's suppose to drop signal bars to nothing. You have to go by the wifi bars instead.
Wifi also greatly depends on your network conditions. Cause I have the same problem but it doesnt happen to me that often after some tweaking.
Wifi Issue
I have that problem quite a bit but the signal strength on my router is good. Yesterday i had my internet company reset the cable modem and my wifi problems have decreased a lot but it is still happing. It has to deal with the wifi certificate problems on the Note 2 (Samsung). It is the same problem that I had on the GS3.
Oh well
ghost_231 said:
Wifi also greatly depends on your network conditions. Cause I have the same problem but it doesnt happen to me that often after some tweaking.
Click to expand...
Click to collapse
what tweaking did you do?
my internet is rock solid. only good thing about uverse service, yet this wifi calling is in and out and in and out all the time.
robl45 said:
what tweaking did you do?
my internet is rock solid. only good thing about uverse service, yet this wifi calling is in and out and in and out all the time.
Click to expand...
Click to collapse
not much for me, just very little. tried to set up QoS and worked pretty good. until my bro starts playing on his xbox, then im screwed on it lol
No issues here with wifi calling.
Nellyinda803 said:
With my wifi calling, as soon as I turn kt kn my bars at home would drop where I would hardly get any service. As soon as I turn wifi calling off I magically get bars. So I leave it off and now I get bars pretty much everywhere I go....almost
from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
Uhh, that's the point of wifi calling, to make calls over WiFi and disable your cellular radio. If you turn on Wifi Calling, you should get a blue phone icon on the top left and your "bars" should drop to nothing as your phone turns off the cellular radio. You can still make/recieve calls/sms/mms.
I've been getting an ER01 error lately with invalid certificate, but it seems to be a T-Mobile backend problem? It happens, about 10% of the time and only on my school's network (I have a feeling, it might have to do with the sign in process there).Otherwise, it works well at my apartment.
achusaysblessyou said:
Uhh, that's the point of wifi calling, to make calls over WiFi and disable your cellular radio. If you turn on Wifi Calling, you should get a blue phone icon on the top left and your "bars" should drop to nothing as your phone turns off the cellular radio. You can still make/recieve calls/sms/mms.
I've been getting an ER01 error lately with invalid certificate, but it seems to be a T-Mobile backend problem? It happens, about 10% of the time and only on my school's network (I have a feeling, it might have to do with the sign in process there).Otherwise, it works well at my apartment.
Click to expand...
Click to collapse
i get that certificate problem at my house, not too much anymore, but I still see it. and the wifi calling does drop in and out at various times. not a huge deal for me, but the average person wouldn't deal with that.
achusaysblessyou said:
I've been getting an ER01 error lately with invalid certificate, but it seems to be a T-Mobile backend problem?
Click to expand...
Click to collapse
I've been noticing more & more problems with my service in the last two months. I called T-Mobile to fix it and whatever they did seemed to only help a little. I get times where I get frequent ER01 errors with WiFi & duplicated text messages (same text message gets received by my phone 2-3 times) for an hour or two. I used to also get errors sending texts around that time, but that appears to have gotten better.
Someone else mentioned Uverse, and my WiFi calling problems are at home & work, both of which have AT&T for internet... When I switched from their DSL to Uverse I expected less problems, but got more.
anyadike said:
I've been noticing more & more problems with my service in the last two months. I called T-Mobile to fix it and whatever they did seemed to only help a little. I get times where I get frequent ER01 errors with WiFi & duplicated text messages (same text message gets received by my phone 2-3 times) for an hour or two. I used to also get errors sending texts around that time, but that appears to have gotten better.
Someone else mentioned Uverse, and my WiFi calling problems are at home & work, both of which have AT&T for internet... When I switched from their DSL to Uverse I expected less problems, but got more.
Click to expand...
Click to collapse
Seems to be a problem that a lot of people are experiencing. Just did a quick Google search and some indication points to a possible T-Mobile back-end problem. I wonder if i call up T-Mobile and ask for wifi calling to be explicitly added to my plan if that'll change anything.

[Q] Long delay when dialing out

Is anyone experiencing a long delay when dialing out? I am on stock rooted ROM. One of my buddies is having the same issue also. The delay is about 5-10 seconds. I don't have this issue when I use the same SIM card with my old iPhone.
I live in Michigan
memee4eva said:
Is anyone experiencing a long delay when dialing out? I am on stock rooted ROM. One of my buddies is having the same issue also. The delay is about 5-10 seconds. I don't have this issue when I use the same SIM card with my old iPhone.
I live in Michigan
Click to expand...
Click to collapse
I have this with my Note II, and so did my Note I and my Streak.
I have seen this on a few of my friends devices. Test this for me
Make a phone call and watch your data icon. It will go from 4g LTE to 4g then disappear the the call will go through.
Then call your phone and watch as the data icon goes from 4g to nothing then ring.
It seems to b a problem with a few select phones. Not sure if its a software or hardware issue. But I have reported the issue to at&t and samsung . Due to the fact that I have seen it on 4 phones
Sent from my SCH-I605 using xda premium
BIGfin86 said:
I have seen this on a few of my friends devices. Test this for me
Make a phone call and watch your data icon. It will go from 4g LTE to 4g then disappear the the call will go through.
Then call your phone and watch as the data icon goes from 4g to nothing then ring.
It seems to b a problem with a few select phones. Not sure if its a software or hardware issue. But I have reported the issue to at&t and samsung . Due to the fact that I have seen it on 4 phones
Sent from my SCH-I605 using xda premium
Click to expand...
Click to collapse
This is exactly what I have noticed!!!! I am also not sure if it's a software or hardware issue.
Seems normal to me. Voice over LTE is not (yet) enabled/available/supported. For voice, the radio has to switch from LTE to UMTS, and then establish a connection to the new network.
normaaaan said:
Seems normal to me. Voice over LTE is not (yet) enabled/available/supported. For voice, the radio has to switch from LTE to UMTS, and then establish a connection to the new network.
Click to expand...
Click to collapse
The issue is a total loss of data. So no talk and surf
Sent from my SCH-I605 using xda premium
Just a quick check - is data set to be LTE-only? You generally can't have simultaneous voice and LTE data.
You could try turning off LTE data and forcing WCDMA/GSM data. That might help.
Also, the signal has to be very strong for simultaneous voice and data. When there is low signal strength, the carrier may have elected to suppress data in favour of voice.
You could also experiment with other baseband firmware. That has made a difference on some of my other phones. The configuration of the carrier's towers plays a big role. However, in my limited experience, signal strength has been the key factor.
Good luck!
I have had two phones with the stock builds and base bands next to each other with all the same settings and one works fine the other doesn't.
The weird thing on top of it is that 50% of the time when making outgoing calls it fails. And when people call they receive the message that the line is no longer in service
Sent from my SCH-I605 using xda premium
Stab in the dark: That sounds like a loose antenna connection - if it happens to the same phone all the time (that was the cause of a similar issue on my old Moto Milestone); or a carrier issue - if it happens on the same tower. (Just because two phones are side by side doesn't mean that they are connected to the same tower.)
The code for radio info is *#0011# http://forum.xda-developers.com/showthread.php?t=1802028 (I know we're not talking about fast dormancy - well, we are talking about radio state switching for the OP - but that thread and Erica's two XDA videos on fast dormancy have lots of good info on radios and data.)
I'm all out of ideas now ...

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