[FAST] Improve Wifi calling - T-Mobile Samsung Galaxy S 4

I remember there was a trick people were saying improved they're WIFI calling.
Something about dialing special numbers.
I'm in need of that code/topic. I have looked for it, but I can't find it.
Can someone please find me the topic or special code??
Please?????

re: special code
xologist said:
I remember there was a trick people were saying improved they're WIFI calling.
Something about dialing special numbers.
I'm in need of that code/topic. I have looked for it, but I can't find it.
Can someone please find me the topic or special code??
Please?????
Click to expand...
Click to collapse
I never heard of any such thing unless perhaps you are speaking of
some 3rd part software app and not the built-in wifi calling feature
which is exclusive to people using the Tmobile network with a
Tmobile M919 cell phone and sim card.
How can anyone improve wifi calling when it works just as perfect
as normal cellular calling?
No one I know of can tell any difference between wifi calling and the
default cellular calling unless someone has a very bad or intermittent
wifi connection.
Good luck finding a special code!

I too have never heard of such thing. From my understanding, Wifi-Calling is as good as your wifi to some degree, it levels off somewhere.

Haven't heard of it either and I've been using wifi calling since nexus one day.
☞ Sent from here☜???

mgbotoe said:
I too have never heard of such thing. From my understanding, Wifi-Calling is as good as your wifi to some degree, it levels off somewhere.
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I've been using it since the Blackberry 8900 days. It was called UMS I believe and it was very good at handing off from WiFi to cell during an active call.
The only way of improving WiFi calling come in when you have an issue with your WiFi or rather, your ISP. Then again, that's still not an issue with the function but your ISP or WiFi setup.
Sent from my SGH-M919 using xda app-developers app

This is probably not what you were looking for but if you turn off wifi power save mode it will make your connection more reliable. (*#0011#) click bottom left button and hit wifi. Turn off power save. It holds a better wifi signal and is more dependable. Hope that helps somebody.

jaysonthomas28 said:
This is probably not what you were looking for but if you turn off wifi power save mode it will make your connection more reliable. (*#0011#) click bottom left button and hit wifi. Turn off power save. It holds a better wifi signal and is more dependable. Hope that helps somebody.
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Click to collapse
Hopefully this has some effect. I just turned it off.
I too have never heard of a special code or method to improve WiFi Calling. Are you talking about in regards to more functions, or improve your signal strength so that it works even when your signal is poor?
Quite honestly if someone was able to allow WiFi Calling to bypass the "poor signal" message when you only have one bar of signal, that would be awesome. Though there is probably more to it than that. Calls maybe need more signal, but not texts. Calls would therefore need 2+ bars, whilst texting only needs 1+. Would be cool to see that happen but it doesn't seem possible. My specific area at work I can only achieve 1 signal bar of the guest network in some spots unless I go by the door and of course no sign of mobile data is even existent in there, hence why I use WiFi Calling. So it'd be nice if I was able to send texts with 1 bar of WiFi. :crying:
But if anybody has any info about this "code" thingy, please post! I'm all for looking to improve it.

Service codes?
Sounds like the OP is looking for the service codes you input in the dialer. I don't recall anything in there that would affect wifi calling though.

Related

Incoming callson WiFi calling goes straight to Voicemail

I love the phone and having the hardest time resisting turning the phone back in. I'm on my 2nd S3 and my third Sim card. Everything appears to be going well but I noticed that when my phone is in WiFi calling mode, incoming calls go straight to voice mail. I don't get an alert or anything. If they leave a voicemail, I get that. I searched other phones that have had this issue not just the S3. I am running stock OS but I am rooted.
Can anyone else verify that there incoming calls are working on Wifi Calling ? Any ideas on what I could try ? outgoing calls work fine.
EDIT: Sometimes calls go through, sometimes it doesn't. When it does go through, I can't swipe the green button to answer. It goes through the swipe motion but nothing happens. When I am off of WiFi calling, I can receive calls correctly and I can properly swipe to answer them
soljaofjesus said:
I love the phone and having the hardest time resisting turning the phone back in. I'm on my 2nd S3 and my third Sim card. Everything appears to be going well but I noticed that when my phone is in WiFi calling mode, incoming calls go straight to voice mail. I don't get an alert or anything. If they leave a voicemail, I get that. I searched other phones that have had this issue not just the S3. I am running stock OS but I am rooted.
Can anyone else verify that there incoming calls are working on Wifi Calling ? Any ideas on what I could try ? outgoing calls work fine.
EDIT: Sometimes calls go through, sometimes it doesn't. When it does go through, I can't swipe the green button to answer. It goes through the swipe motion but nothing happens. When I am off of WiFi calling, I can receive calls correctly and I can properly swipe to answer them
Click to expand...
Click to collapse
Ah-ha, you just solved a mystery for me! I like to have my phone automatically connect to any wifi in my usual hangouts to save data. I kept wondering why I was missing calls without hearing my ringtone. I have a theory on what is happening. Back on my old Vibrant, wifi-calling could not work on slower networks. I could get it to initialize but never could it actually make a call. I noticed this when up in the mountains at a lodge that had very slow internet. Maybe it's the same issue? Hopefully others will chime in.
Not sure if this a slow network issue or and ICS issue. My S3 does this also and is frustrating since I auto connect to wifi at home and work. Keep missing damn calls. My S2 started doing the same thing when I updated from GB to ICS. Maybe its a Samsung and ICS thing now that I think about it because the wife and kids all run ICS on HTC Amaze without issue.
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Disappointing. Are you on T-mobile? (I expect yes as this, to my understanding, is the only US network licensed to use wifi calling?)
I am thinking of buying an S3 but I have to have wifi calling working on UK operator orange.
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Click to collapse
I think most of these threads are locked because XDA is trying to separate them all. Anyways, this is the only way I could respond. Since my first post, I have had more positive experiences with wifi-calling. I think it may be a little of both, slow connection and this newer implementation. On a slow connection it definitely wont work correctly which is what I would expect. What I mean is you can't successfully answer or make a call as the phone app will just hang. Going straight to Voicemail is another mystery altogether. I have 4g internet at home so there is no reason I can think of for that to happen. But like I said since my first post I have successfully made and answered several calls from home using wifi-calling and even a few from a location that had decent internet. Call quality was decent for what it is.
Guys, take a look at this thread. It concerns wifi signal dropping and re-enabling. That would certainly explain why some of the calls made to me when I was at home on wifi went to Voicemail even though I have 4g. I did notice some of this last week.
http://forum.xda-developers.com/showthread.php?t=1790187
Not sure if this a slow network issue or and ICS issue. My S3 does this also and is frustrating since I auto connect to wifi at home and work. Keep missing damn calls. My S2 started doing the same thing when I updated from GB to ICS. Maybe its a Samsung and ICS thing now that I think about it because the wife and kids all run ICS on HTC Amaze without issue.
Wifi Calling
sflagg73 said:
Not sure if this a slow network issue or and ICS issue. My S3 does this also and is frustrating since I auto connect to wifi at home and work. Keep missing damn calls. My S2 started doing the same thing when I updated from GB to ICS. Maybe its a Samsung and ICS thing now that I think about it because the wife and kids all run ICS on HTC Amaze without issue.
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Click to collapse
Disappointing. Are you on T-mobile? (I expect yes as this, to my understanding, is the only US network licensed to use wifi calling?)
I am thinking of buying an S3 but I have to have wifi calling working on UK operator orange.
This happens on sprint phones as well...
I see this thread is open again. My experiences with wifi-calling have bore out what I thought: A weak signal will cause problems. I only wish that every call went to voicemail. What happens often with me is that wifi-calling will partially work, as in I can answer a call but the person can't hear me at all and I may catch one or two words from them. If they terminate the call, the phone app is fine, but if I terminate the call, the phone app hangs and freezes everything! Today it was so bad I had to pull the battery and reboot. Maybe wifi calls going to voicemail is an imperfect function that Samsung or rather T-Mobile built into the app. It kinda makes sense as this app could never complete a wifi call if you were connected to slow internet when it was a separate app. In any case I would rather have my wifi calls go straight to voicemail (and get a pop-up notification) than have the app try to work but wind up hanging my phone. What do you guys think?
I don't know about slow networks. I've already exchanged one T-Mobile S III because of Wi-Fi calling problems. My replacement works much better on my work network than it does on my home network and it is much, much slower than my home network is.
dcugooner said:
I don't know about slow networks. I've already exchanged one T-Mobile S III because of Wi-Fi calling problems. My replacement works much better on my work network than it does on my home network and it is much, much slower than my home network is.
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This isn't particularly good news for me. If it isn't software problem that manifests when coupled with a slow network then a future update won't fix it. That's what I was hoping the problem would turn out to be. If its hardware, then the time I have to do something about it is limited as I dropped my first phone and the replacement has a limited warranty, I think. Plus, I've paid to have invisi-shield placed on the front and back and would have to eat that cost if I get another replacement.
Epic Fail
I have this issue and am at my wits end to resolve it. Wifi calling is a major feature that worked fine(except echo) with my Vibrant. However, nothing I have tried will fix my ability to answer calls on WiFi. I have the SIM from the GS3 box. My E911 address exists since my bb8900. WiFi Power Save is off. All routers I use, Linksys E4200 and Linksys WNR1000, Linksys 614. Wireless N and G. T-mo CS could not help. I understand that the WiFi calling changed from UMA to IMS. No separate app. GS2 users with same issue. Anyone with a clue? Please help.
IrieBro said:
I have this issue and am at my wits end to resolve it. Wifi calling is a major feature that worked fine(except echo) with my Vibrant. However, nothing I have tried will fix my ability to answer calls on WiFi. I have the SIM from the GS3 box. My E911 address exists since my bb8900. WiFi Power Save is off. All routers I use, Linksys E4200 and Linksys WNR1000, Linksys 614. Wireless N and G. T-mo CS could not help. I understand that the WiFi calling changed from UMA to IMS. No separate app. GS2 users with same issue. Anyone with a clue? Please help.
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how did you turn off the wifi power save?
I experience the bad quality calls on wifi, at my workplace it is perfect, but at my home, its terrible.
my home network is faster than my workplace.
I think this is something to do with the firewall as well.
and I couldn't find the way to turn off firewall on the dam verizon fios actionnet router.
---------- Post added at 01:27 PM ---------- Previous post was at 01:27 PM ----------
you can also try to broadcast the wifi on channel 3 only, that helped me in my case.
WPSM
There is a link earlier in this thread to another XDA thread. Phone app --> *#0011# --> menu button --> WiFi--> Press WPSM On/Off button.
My GS3 would drop a WiFi signal 3 inches from the router at work and 3 feet from the router at home. At least THAT is fixed now. However, I don't seem to get the same WiFi signal range as my Vibrant did using the same routers Trying the channel 3. I do have a few setting set to auto at least on my home router.
-greenboy- said:
how did you turn off the wifi power save?
I experience the bad quality calls on wifi, at my workplace it is perfect, but at my home, its terrible.
my home network is faster than my workplace.
I think this is something to do with the firewall as well.
and I couldn't find the way to turn off firewall on the dam verizon fios actionnet router.
---------- Post added at 01:27 PM ---------- Previous post was at 01:27 PM ----------
you can also try to broadcast the wifi on channel 3 only, that helped me in my case.
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Click to collapse
when my wifi calling was giving me issues i had to go on the tmobile site and set my area for 911 calls for the wifi calling. after that it worked flawlessly
duhitsrandy said:
when my wifi calling was giving me issues i had to go on the tmobile site and set my area for 911 calls for the wifi calling. after that it worked flawlessly
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Click to collapse
Yes, that's required, but not the underlying issue of the thread.
I've had wifi calling weirdness too. I called my sisters Verizon cell and there was no tone but after xx seconds it got her voicemail. When I call my phone on my house phone (Comcast) my phone rings but there's no tone on the house phone!
I NEVER get a ring. Just someone picks up our voicemail does.
Sent from my SGS3 Stock Rooted & Odexed
I love this thing!

They can't hear me - wifi calls

Been having some issues with callers not hearing me. I tried swapping out the modems (can't remember exactly which ones but can figure it out if necessary), tried different kernels (while I was on TeamSonic rom), and switched from Sonic to FrostyJB and still happening.
I am on wifi calling at my home (crappy signal). It happened on all calls this morning. I made all the above saps and changes this morning as well. I tried a call when I left and was outside of wifi and call worked fine.
This sound like a defect or setting thing? Don't see a lot of settings in the Wifi Calling menu.
Thanks!
There are a few things that could be the problem. You need to determine if it is the phone or the wifi.
What kind of signal are you getting? Are you able to test your wifi for internet? Is this all of a sudden, meaning were you able to use wifi calling without problems prior to this recent problem?
I always had problems with wifi calling so I never use it on my HTC one s and this one too
Sent from my SGH-T999 using Tapatalk 2
pytyper483 said:
There are a few things that could be the problem. You need to determine if it is the phone or the wifi.
What kind of signal are you getting? Are you able to test your wifi for internet? Is this all of a sudden, meaning were you able to use wifi calling without problems prior to this recent problem?
Click to expand...
Click to collapse
It has been happening more frequently lately but I am not really sure on a time frame. I don't make gobs of calls. I have had the phone for about a month or so and didn't have any problems early on. I have tried a few different ROMs but I wouldn't call myself a flashaholic.
My wifi signal at home is pretty decent. My speeds are usually around the 18 - 19 range. No problems with internet. The calls connect pretty quickly.
I do have a cell-fi (sp?) unit on the way from t-mobile which my help but I would just like to try and figure out if something is off with the device.
Thanks!
Information update:
I just made a call from my office (same no cell signal and decent wifi) and call worked fine. Wifi speeds here are a bit slower, usually around 8-9.
Haven't changed router or modem at home. Time Warner Cable is the provider.
Will check my son's phone tonight. He also has the S3 but being a teenager, I am not entirely sure he knows how to make an actual phone call...
Does the problem seem to happen at the same times of day? Depending on how your isp is set up, heavy network traffic can cause the issue. Also remember that your voice going out is like uploading a file on that upstream data is going to be slower than downstream.
Is your cable modem or router kind of outdated? Last year I upgraded my modem and saw a huge improvement. The DOCSYS 3.0 tech is a lot faster than a DOCSYS 1.0 rated modem can handle.
Sent from my SGH-T999 using xda app-developers app
DocHoliday77 said:
Does the problem seem to happen at the same times of day? Depending on how your isp is set up, heavy network traffic can cause the issue. Also remember that your voice going out is like uploading a file on that upstream data is going to be slower than downstream.
Is your cable modem or router kind of outdated? Last year I upgraded my modem and saw a huge improvement. The DOCSYS 3.0 tech is a lot faster than a DOCSYS 1.0 rated modem can handle.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Today it happened around 8:00 am (EST) and again around noon. I'll check the upload speeds as well.
I swapped out the modem about 4-5 months ago. Not sure of the make. It is the one Time Warner provides. Haven't noticed any major problems with our PC though.
Router does have a few years on it.
I suspect that you're getting one way voice translation... the router is forwarding the incoming voice traffic to your phone but failing to do the same for your outbound traffic. I have a Cisco enterprise class router at my house (I'm an IT geek so I *play* with it) and until I opened up a bunch of ports to a bunch of sites I saw being blocked in the router logs I was having the same issue.
I asked T-Mobile for a list of voice gateway IP addresses at their end but none of the tier 1/2 techs were ever able to give me any useful info regarding IP addresses or ports... The phone keeps finding new IP addresses it wants to connect to so in the end I gave up on getting wifi calling working reliably and have mine set to prefer cellular.
A SOHO or Home router ought to automatically open up the necessary ports but I would suggest looking at the manufacturers web page to see if there's a firmware update for your router. If there is, apply it and see if that fixes the problem. Else buy another one and see if that resolves it. If it doesn't then you can always take it back.
Hope this helps
I thought it was just me that had a wifi problem
One thing to keep in mind is you HAVE to have a cell connection to use wifi calling. It's possible the signal is so weak it's dropping once you have the phone up to your face and it's moving around and stuff. Try using speakerphone with the phone on the desk or wherever you have some signal. You should also try to get a signal booster from tmo.
Definately check to see if there's any firmware updates for your router like ronin said.
Is it a G or N router? If it is N, check your other devices that connect to it as well. If anything connects to it at 802.11G then all connections with the router can be throttled down to G speeds. If so disconnect the G device, reconnect your S3 and try it again.
Also have you restarted the modem and router recently? Unplug them both from power for about 15-30 seconds. Then plug back in and give it a minute or two for everything to reconnect.
Sent from my SGH-T999 using xda app-developers app
I've been having the same problem all day today. I couldn't quite determine if it's my service or wi-fi, until then, I have it off for now.
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psykhotic said:
One thing to keep in mind is you HAVE to have a cell connection to use wifi calling. It's possible the signal is so weak it's dropping once you have the phone up to your face and it's moving around and stuff. Try using speakerphone with the phone on the desk or wherever you have some signal. You should also try to get a signal booster from tmo.
Click to expand...
Click to collapse
Didn't have to do all of this with V2
psykhotic said:
One thing to keep in mind is you HAVE to have a cell connection to use wifi calling. It's possible the signal is so weak it's dropping once you have the phone up to your face and it's moving around and stuff. Try using speakerphone with the phone on the desk or wherever you have some signal. You should also try to get a signal booster from tmo.
Click to expand...
Click to collapse
I didn't know about the cell connection requirement. The cell signal at my house is far north of crappy but the signal in my office is bad as well and no issues. I do have the tmo booster (cell-fi?) on the way. Hopefully that will fix it.
Thanks!
J_Bone said:
I didn't know about the cell connection requirement. The cell signal at my house is far north of crappy but the signal in my office is bad as well and no issues. I do have the tmo booster (cell-fi?) on the way. Hopefully that will fix it.
Thanks!
Click to expand...
Click to collapse
Someone told me once they'll send you one for free if you have lousy coverage at your home. Is that true?
Sent from my SGH-T999 using xda app-developers app
J_Bone said:
I didn't know about the cell connection requirement. The cell signal at my house is far north of crappy but the signal in my office is bad as well and no issues. I do have the tmo booster (cell-fi?) on the way. Hopefully that will fix it.
Thanks!
Click to expand...
Click to collapse
Woah.. holding my phone landscape killed my WiFi calling. WiFi went from 3 bars to 1 and WiFi calling disappeared. Holding the phone the other way fixed it.....I just had an iPhone 4 problem
DocHoliday77 said:
Someone told me once they'll send you one for free if you have lousy coverage at your home. Is that true?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
If you had good credit they will and you have to have SOME service. Like 1 bar or w.e.
ronin4740 said:
I suspect that you're getting one way voice translation... the router is forwarding the incoming voice traffic to your phone but failing to do the same for your outbound traffic. I have a Cisco enterprise class router at my house (I'm an IT geek so I *play* with it) and until I opened up a bunch of ports to a bunch of sites I saw being blocked in the router logs I was having the same issue.
I asked T-Mobile for a list of voice gateway IP addresses at their end but none of the tier 1/2 techs were ever able to give me any useful info regarding IP addresses or ports... The phone keeps finding new IP addresses it wants to connect to so in the end I gave up on getting wifi calling working reliably and have mine set to prefer cellular.
A SOHO or Home router ought to automatically open up the necessary ports but I would suggest looking at the manufacturers web page to see if there's a firmware update for your router. If there is, apply it and see if that fixes the problem. Else buy another one and see if that resolves it. If it doesn't then you can always take it back.
Hope this helps
Click to expand...
Click to collapse
I believe you are right on. I could not get my Wifi Calling to function properly at work. Text works great, sending and receiving. My phone rings when I receive a call, but I cannot hear anything, neither does the caller. Similarly, when I dial a number, the other phone rings, but no audio is heard on either end. I called TMobile Tech Support and they read me a memo from Samsung that this is a "Known Issue" with "one-way audio" on wifi calling. A salesperson in the store read to me the same memo. Interesting thing is when I got home, everything works, both voice and text. I tried it at another wifi location and everything works also. But not at work. I am convinced it is a problem with the network at work. Puzzle is that Wifi Calling works great on my HD2 with Custom Rom at work using the same enterprise network. But I would hate to keep swapping the micro sim from the S3 into a sim adapter into the HD2 just to get reception at work. I was hoping the upcoming JB upgrade will solve the problem, but reading the above explanation makes me worried now. Anybody out there with any work around?
isaywedoit said:
I believe you are right on. I could not get my Wifi Calling to function properly at work. Text works great, sending and receiving. My phone rings when I receive a call, but I cannot hear anything, neither does the caller. Similarly, when I dial a number, the other phone rings, but no audio is heard on either end. I called TMobile Tech Support and they read me a memo from Samsung that this is a "Known Issue" with "one-way audio" on wifi calling. A salesperson in the store read to me the same memo. Interesting thing is when I got home, everything works, both voice and text. I tried it at another wifi location and everything works also. But not at work. I am convinced it is a problem with the network at work. Puzzle is that Wifi Calling works great on my HD2 with Custom Rom at work using the same enterprise network. But I would hate to keep swapping the micro sim from the S3 into a sim adapter into the HD2 just to get reception at work. I was hoping the upcoming JB upgrade will solve the problem, but reading the above explanation makes me worried now. Anybody out there with any work around?
Click to expand...
Click to collapse
You'd have to have access to the networking equipment at your work to really know the answer why... Short version is that Home routers/firewalls reflexively open ports when a device inside the network tries to access an IP address. UPnP is an example of this... Enterprise class routers/firewalls don't do this as it's considered insecure. So, you have to know what ports the traffic is coming from/going to and allow traffic on those ports. You also want to know what outside IP address it's destined for so you can lock down that traffic to just certain destinations, not the whole internet...
So, if it doesn't work at your office then there's likely very little you can do to fix it unless you're in the IT department or have a really good relationship with the Network Administrator of your IT department.
psykhotic said:
One thing to keep in mind is you HAVE to have a cell connection to use wifi calling.
Click to expand...
Click to collapse
Lol, really? Show me evidence of this.
What would be the point of Wifi calling if you have a cell connection? I've used Wifi calling since my MT4G and that's a total crock of BS
There would be NO POINT to Wifi calling if you have a cell signal.. common sense...

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
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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
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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.
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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.

Airplane mode + WiFi calling

Where I live there is -50 bars of cell service, so when WiFi calling drops it starts searching and absolutely murders my battery life. Is there anyway to hack the system to allow WiFi calling while in airplane mode? I've heard certain phones can do it. Are there any devs on here that have the know how? I know we have some very talented people in the community so I'm hopeful. It seems like it should be pretty easy because while on WiFi calling the cell radios get shut off and WiFi works in airplane mode, so?
I'm just not convinced WiFi calling will ever be more reliable and only getting 9-12 hours on a charge really sucks! Anyways, here's to hoping for a fix!
If you go to WiFi Calling Settings -> Conection Preferences -> WiFi Only.
I think that would do the trick.
Sent from my SGH-T999 using xda app-developers app
^ Tried it out of curiosity because it would be useful to me, but that does not work.
I wonder if it would work if you used a program like Tasker to cut only the cell radios without explicitly entering "airplane mode". Although I'm not 100% sure that is possible or if some other work-around is needed.
Maybe there's something that can be added to the csc feature.xml? Not sure what it'd be but theres already these listed:
<CscFeature_Settings_Airplane_Wifi_Dependency>false</CscFeature_Settings_Airplane_Wifi_Dependency>
CscFeature_Web_Bool_StartWIFISettingInAirplaneMode>false</CscFeature_Web_Bool_StartWIFISettingInAirplaneMode>
You could check other devicrs that have wifi calling and see if theirs is listed. This may not even work, but could be worth a look.
Sent from my SGH-T999 using xda premium
---------- Post added at 05:48 AM ---------- Previous post was at 05:19 AM ----------
Also, there's an app in the store called Bobsled Calling (also a Bobsled Messaging app) listed under T-Mobile top picks. Don't know how good it really is, but I was thinking bout giving it a shot on my old phone that has no cellular service at all.
One of the only ones I've seen where the people you call don't also have to have the app.
Maybe it'll allow you wifi calls under airplane mode?
Sent from my SGH-T999 using xda premium
You can try going to your Phone app and typing in *#*#4636#*#* -> Device information and then hit the 'Turn off radio' button. I used it before when Hurricane Sandy knocked out the cell towers and I was left with just random WiFi hotspots, but this was back on ICS. Though I don't see why it shouldn't work with JB.
If the code doesn't work, go to the Play Store and download an app called 'Phone info' (Author: [email protected]). The app should take you to the Testing menu.
Instead of constantly typing all those numbers (*#*#4636#*#*), download the app, Phone Info in the Play Store and there you go....
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That app doesn't work because when WiFi calling is working the radio is idle. Service menu is a no go.
Sorry I didn't post it as a Q but I didn't have a clear question. I wanted to discuss the topic. I thought about yet where to post it before I did, thanks.
WiFi calling with Cellular Radio turned off
I am trying to accomplish the same thing but was approaching it from a different angle. The service menu idea doesn't work.
We are both trying to accomplish the same thing. Use WiFi calling while having the Cellular radio turned off. Airplane mode turns off all radios and you can re-enable the WiFi radio. However the Galaxy S III will not allow a call to be made while the phone is in airplane mode. This is a low level system issue and not related to the dialer (I tired three different dialers).
Does any body know of a way to do this??? PLEASE??? I'm leaving for Brazil in 4 days for a month and I would like to be able to do this in Brazil.
This is a copy from another posting:
ChitownWingMan said:
I am trying to enable WiFi calling with the cellular radio turned off.
According to Samsung & T-Mobile the only official way to turn of the cellular radio is to enable Airplane mode.
Here is the procedure that I tried:
Enable Airplane Mode
Turn on WiFi
Connect to a functioning WiFi hotspot
Enable WiFi Calling
Wait for the WiFi Calling Icon to appear in the status bar
Make a WiFi call
At this point the dialer sits at the dialing screen for more than 10 minutes (I bailed at 10 minutes). As soon as I abort the dialing attempt a dialog box pops up saying you cannot make a call while in Airplane mode.
Is there any way to completely disable the cellular radio without putting the phone in Airplane Mode?
Is there an app that will do this?
Is there a hidden that will do this?
Please don't use bandwidth by asking why I want to do this or suggesting that I use Skype or some other app. My goal is to be able to make and receive VOIP calls while the cellular radio is completely disabled.
Thank you for your help...
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Click to collapse
I think maybe the phone HAS to ping a cell tower in order to make WiFi calling work. For your purposes just set the WiFi calling connection preference to WiFi only.
psykhotic said:
I think maybe the phone HAS to ping a cell tower in order to make WiFi calling work. For your purposes just set the WiFi calling connection preference to WiFi only.
Click to expand...
Click to collapse
I have zero reception at my house and wifi calling works.
Setting it to "WIFI only" doesn't allow it to work the way that's wanted - it just tells the phone to only make calls over WIFI - but that doesn't open up the ability to do so when the radios are off. From what is described I agree that this sounds like a conflict with the low-level integration.
Did anyone try that Bobsled app I mentioned earlier?
It claims that I could put it on a tablet or my old phone that has no sim/data, and it would work.
If it were to work is that something that could get you by for a while? I understand not wanting to go 3rd party, but it could be the only option for now. It is a tmobile app btw.
Sent from my SGH-T999 using xda premium
I meant for the guy going abroad. Although he needs to also make sure data roaming is off, I think.
Doc I did look but my problem is I want to use my tmo number. I have a house phone but it's really frustrating to tell people they have to try me at two different numbers. And not being able to text.
psykhotic said:
I meant for the guy going abroad. Although he needs to also make sure data roaming is off, I think.
Doc I did look but my problem is I want to use my tmo number. I have a house phone but it's really frustrating to tell people they have to try me at two different numbers. And not being able to text.
Click to expand...
Click to collapse
There's also a Bobsled messaging app. Pretty sure its the same deal and works via wifi.
Also, I could've sworn it said that you have the option of using your current cell number. Maybe I'm mixed up on it...
Anyway, its just a suggestion for looking at. I have no idea how good it really is... just don't have many other ideas for you guys at this point.
I wonder if there could be a build.prop value that would disable cellular only. Or set its scan frequency like you can do for wifi.
Sent from my SGH-T999 using xda premium
What were they thinking
psykhotic said:
I think maybe the phone HAS to ping a cell tower in order to make WiFi calling work. For your purposes just set the WiFi calling connection preference to WiFi only.
Click to expand...
Click to collapse
I have done some more research.
I was able to turn off just my cellular radio by using the phone info application to enter the service menu (Phone Info App->Device Information, scroll down and select Turn off radio).
With the cellular radio turned off I tried to enable Wifi Calling (Settings->More Settings->W-Fi Calling).
The phone says "enabling", turns on the cellular radio (without any messaging saying that it is doing this) and then says "Ready for Calls".
I also tried enabling WiFi Calling first and then turning off the cellular radio (using the method outlined above). But the cellular radio would not turn off as long as WiFi calling is enabled.
I don't know if this is a bug or a "feature" but for WiFi Calling to work on the T-Mobile SGH-T999 (4.0.4 Firmware) the cellular radio must be enabled. Though I'm sure T-Mobile has a reason for this the logic of it escapes me. WiFi calling should not need the cellular radio for any reason. I use Skype all the time and it doesn't need cellular service to operate on WiFi.
If anybody out there knows how I can make and receive phone calls using my regular cell phone number exclusively via WiFi (with the cellular radio disabled) please let me know. Many thanks to the person who figures this out
As long as you are connected to Wi-Fi, with Wi-Fi calling activated (blue icon showing), it should automatically disable the cellular radio. If you are connected to Wi-Fi, but no blue Wi-Fi calling icon, then it will turn on cell radio and start searching for towers.
Sent from my SGH-T999 using xda app-developers app
Lagar said:
As long as you are connected to Wi-Fi, with Wi-Fi calling activated (blue icon showing), it should automatically disable the cellular radio. If you are connected to Wi-Fi, but no blue Wi-Fi calling icon, then it will turn on cell radio and start searching for towers.
Sent from my SGH-T999 using xda app-developers app
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Click to collapse
Duh.. the reason to use it in airplane mode for me is that WiFi calling disconnects every few minutes and when the cell radio is searching since I have 0 coverage it absolutely kills my battery.
psykhotic said:
Duh.. the reason to use it in airplane mode for me is that WiFi calling disconnects every few minutes and when the cell radio is searching since I have 0 coverage it absolutely kills my battery.
Click to expand...
Click to collapse
Sorry but you're not making any sense. You're complaining about your phone's search for cell towers killing your battery because your Wi-Fi calling keeps disconnecting? Let's say you find a way to disable your cell connection. Your Wi-Fi calling still keeps disconnecting and you still can't receive or place calls. What's the point? Longer lasting "iPod"? Maybe start looking for a way to fix your Wi-Fi calling problem would be a better solution, ie. Flashing a different ROM until you find something more stable. Duh!
Sent from my SGH-T999 using xda app-developers app
Lagar said:
As long as you are connected to Wi-Fi, with Wi-Fi calling activated (blue icon showing), it should automatically disable the cellular radio. If you are connected to Wi-Fi, but no blue Wi-Fi calling icon, then it will turn on cell radio and start searching for towers.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
These are the following options available (all of these options have the cellular radio enabled and working at all times):
1. Make calls using the cellular network only - WiFi Calling disabled.
2. Wi-Fi Preferred - Make calls using WiFi Calling if a valid WiFi network is available and connected. Cellular network calls are made when a WiFi network is not available.
2. WiFi Only - Makes only WiFi calls. Cellular calls are not made when a WiFi network is not available. Note: This does NOT disable the cellular radio.
3. Cellular Preferred - Makes cellular network calls are made if a cellular network is available. WiFi calls are made if a cellular network is not available and a WiFi network is available and connected.
When enabling WiFi Calling the cellular radio is briefly disabled and then re-enabled..
Lagar said:
Sorry but you're not making any sense. You're complaining about your phone's search for cell towers killing your battery because your Wi-Fi calling keeps disconnecting? Let's say you find a way to disable your cell connection. Your Wi-Fi calling still keeps disconnecting and you still can't receive or place calls. What's the point? Longer lasting "iPod"? Maybe start looking for a way to fix your Wi-Fi calling problem would be a better solution, ie. Flashing a different ROM until you find something more stable. Duh!
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I've tried multiple ROMs and multiple routers so.....
My only "solution" would be to not use my phone at all at home and just turn it off. I'd rather have a longer lasting iPod than a paperweight.

Automate WiFi Calling On/Off

Thanks for reading.
I am looking for a way to automate turning WiFi calling on/off. I have attempted to do this with Tasker but with no luck. I have read several threads but they seem to be referencing an older WiFi calling solution that was an app.
I am using the T-Mobile Samsung S4 w/ 4.3 and the WiFi calling settings are under Settings->My Device (Tab)->Call->Wi-Fi Calling. this phone is not rooted (corporate policy) so there I cannot use D-pad instructions to select the option.
Any thoughts?
rlyounker said:
Thanks for reading.
I am looking for a way to automate turning WiFi calling on/off. I have attempted to do this with Tasker but with no luck. I have read several threads but they seem to be referencing an older WiFi calling solution that was an app.
I am using the T-Mobile Samsung S4 w/ 4.3 and the WiFi calling settings are under Settings->My Device (Tab)->Call->Wi-Fi Calling. this phone is not rooted (corporate policy) so there I cannot use D-pad instructions to select the option.
Any thoughts?
Click to expand...
Click to collapse
I just took a look at the code, I think you are out of luck without root my friend. :/
I was under the assumption that it was automatic.
With Wi-Fi calling on and you're out of Wi-Fi range cellular network take over. There's a few options under Wi-Fi calling setting as to which you prefer first, Wi-Fi or cellular signal
☞ Sent from here☜
baseballfanz said:
I was under the assumption that it was automatic.
With Wi-Fi calling on and you're out of Wi-Fi range cellular network take over. There's a few options under Wi-Fi calling setting as to which you prefer first, Wi-Fi or cellular signal
☞ Sent from here☜
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Click to collapse
Thats what i was thinkin..
baseballfanz said:
I was under the assumption that it was automatic.
With Wi-Fi calling on and you're out of Wi-Fi range cellular network take over. There's a few options under Wi-Fi calling setting as to which you prefer first, Wi-Fi or cellular signal
☞ Sent from here☜
Click to expand...
Click to collapse
Your assumption is correct, however if you set it to Cellular preferred and you get a call with only 10% cell signal it will come across the voice channel, and in my case most likely drop. This is when I am at the office. Conversely when I am at home my wireless coverage is spotty and I wouldn't want to use WiFi calling. So my ultimate goal is to use Tasker to turn on WiFi calling when I am at the office and turn is off when I leave. I hope this clarifies what I am trying to accomplish.
rlyounker said:
Your assumption is correct, however if you set it to Cellular preferred and you get a call with only 10% cell signal it will come across the voice channel, and in my case most likely drop. This is when I am at the office. Conversely when I am at home my wireless coverage is spotty and I wouldn't want to use WiFi calling. So my ultimate goal is to use Tasker to turn on WiFi calling when I am at the office and turn is off when I leave. I hope this clarifies what I am trying to accomplish.
Click to expand...
Click to collapse
This is impossible without root though.
you can get automate wifi on/off .you might to know network knowledge and you can settings this on/off mode .any prob help with any wifi expert please.
Michael Hill said:
you can get automate wifi on/off .you might to know network knowledge and you can settings this on/off mode .any prob help with any wifi expert please.
Click to expand...
Click to collapse
Why are you bumping all these ancient threads without adding any information?
Please don't do that.
I would like to do this as well!!!
Sent from my SGH-M919 using xda app-developers app

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