Develop Bugs

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
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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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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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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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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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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!

[Q] Wifi Calling working but Off Under More Networks (Answered)

Hello,
I've found out that my wifi calling is being used even though I have it off in the settings of the phone. Although it's off I still can select the options under Connection Preferences: Wifi Perfered, Cellular Networkin Prefered and Never use Cell Network (not sure if that matters or not). I choose the 2nd option and noticed dropped calls around the outer edge of my wifi. But wifi calling is turned off. How do you permanently turn this feature off?
I do use wifi when I'm within my wifi area. But had no idea that wifi calling was still being used when set to off. Do I have to disable wifi all together?

Ok. I've found out that this is known issue doing more a search online. The only fix is to disable wifi altogether. There have been other suggestions but none of them fix it. I've heard that exchanging the sim chip that disables wifi calling might work but haven't heard anything consistent with that fix.
I'm just perplexed by this. This is a great phone yet whenever you enable wifi you enable wifi calling regardless if it's off. I just don't get how something like this would be considered a standard feature when other phones just don't do that by default. If I didn't stumble upon this information I would have never guessed that it was the main cause for my dropped calls.

Thanks about that update it could help others soon.

NP, I have to wonder if this is really a standard none controllable feature on the phone or if the carrier can disable it?. If wifi calling is controllable on the phone and you can turn it on or off jet remain on then I have to wonder what other external force is keeping it on when you turn it off?
Did the maker just simply forget to remove the ability to control wifi calling because turning it off simply doesn't work.
or
Is this something that the carrier did
or
Is this something with the sim chip
Another thing I've found that seems to be related to this. If you try to access your acct while Wifi is enabled it suppose to switch from wifi to 4G but it doesn't (and you can't access your account in tmo. while in wifi. Perhaps different software updates were used but it was seamless back then on a different phone.

This brings up another interesting observation. Once wifi is enabled you can't auto enable your 4g network when it's needed. IE: You can't review your acct for one. Is there a way to make sure that your phone has 4G LTE priority whenever wifi is enabled?

I don't know also how to prioritize the 4G LTE over wifi, good observation.

Lorettaa said:
I don't know also how to prioritize the 4G LTE over wifi, good observation.
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Update, I was able to use an old version of my account (which was used on an older phone) and was able to confirm that it is programed to disable wifi connection and activate the 4g services while using the my acct app without having to disable wifi manually. A message even popped up to tell you so. And once you exited the my acct app it would restore your wifi connection from 4g. So it is controlled via the program itself.
So it begs the question, why doesn't the newer version not do this? This now looks like 2 separate issues with wifi and wifi calling.

Verify if Wifi Calling is still enabled even though you have it disabled
I just found a way to verify if wifi calling is still enabled even though you have it disabled on the Note 3. Here is what you need to do.
1. Make sure that wifi calling is disabled
2. Make sure that wifi is already enabled and in use
3. Stand right next to your wifi router
4. Make a call
5. Listen to hear any wired sounding ringback (the sound you hear to let you know that a call is actually ringing the recipients phone).
6. If you do notice a wired sounding ringback complete the call and stay on the line for about 30 seconds or so.
7. Disable wifi while on the call.
8. Once disabled did your call drop?
This is what I did in order to verify if wifi calling is still enabled even though I have it disabled on my phone.
I'm not going to say it's happening to every one. Nor would I suggest it's a bad feature for those who need wifi calling. I just don't understand why I'm forced to use wifi calling when I fully capable of using my 4g network.

Keydas said:
I just found a way to verify if wifi calling is still enabled even though you have it disabled on the Note 3. Here is what you need to do.
1. Make sure that wifi calling is disabled
2. Make sure that wifi is already enabled and in use
3. Stand right next to your wifi router
4. Make a call
5. Listen to hear any wired sounding ringback (the sound you hear to let you know that a call is actually ringing the recipients phone).
6. If you do notice a wired sounding ringback complete the call and stay on the line for about 30 seconds or so.
7. Disable wifi while on the call.
8. Once disabled did your call drop?
This is what I did in order to verify if wifi calling is still enabled even though I have it disabled on my phone.
I'm not going to say it's happening to every one. Nor would I suggest it's a bad feature for those who need wifi calling. I just don't understand why I'm forced to use wifi calling when I fully capable of using my 4g network.
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Click to collapse
Can you check and tell if you still have signal (bars) when you are connected to WiFi? Or does it become blank (0 bars)?

rahulisola said:
Can you check and tell if you still have signal (bars) when you are connected to WiFi? Or does it become blank (0 bars)?
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Standing right next to the router I have full bars.

no dropcalls for me with steps you have given

Keydas said:
Standing right next to the router I have full bars.
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That is weird. I tried your steps, I couldn't recreate the problem. Just to make sure, I was talking about the phone network signal, not Wifi signal.
If the bars were becoming 0, there is a fix. But otherwise, it may be a faulty unit. You can try and get it replaced.
BTW, try this and see if it helps: http://forum.xda-developers.com/showthread.php?t=2698329

Thanks man! Gonna try this

Rahulisola, thanks for the link. I was able to fix the issue by doing a factory reset. Not sure what caused it but now I can disable wifi and the call stays connected. Although I found it odd that wifi calling was forced enabled during the reset while I was setting up the wifi network. Disabling it after the factory reset setup did prove it was really off this time. I also noticed that I'm not seeing "HD Voice" which I know assume is related to wifi calling. As I've seen HD Voice whenever I was within my wifi range during a call.
Also, Lorettaa thanks for looking into this as well. I really don't know what caused the problem but I'm glad it's fixed now . No more of pitched ring backs while making a call. And no more odd echo voices when talking. And most importantly no dropped calls.

Keydas said:
Rahulisola, thanks for the link. I was able to fix the issue by doing a factory reset. Not sure what caused it but now I can disable wifi and the call stays connected. Although I found it odd that wifi calling was forced enabled during the reset while I was setting up the wifi network. Disabling it after the factory reset setup did prove it was really off this time. I also noticed that I'm not seeing "HD Voice" which I know assume is related to wifi calling. As I've seen HD Voice whenever I was within my wifi range during a call.
Also, Lorettaa thanks for looking into this as well. I really don't know what caused the problem but I'm glad it's fixed now . No more of pitched ring backs while making a call. And no more odd echo voices when talking. And most importantly no dropped calls.
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Click to collapse
Glad that it is solved. Usually I always do factory reset 1st and ask anyone with problems to do that too. My bad, I assumed you had already done it. Must be some other thread. Too much work catching up on me
Anyways, enjoy your fixed Note 3

Missed calls not showing, and late SMS

I'm having issues when on WiFi and LTE Enabled, the phone does not get any phonecalls, missed phonecalls do not show and SMS arrive late (my carrier has the option to notify me missed calls, but yesterday the message got me 10 minutes after the call).
After searching, I've found out something similar happened to nexus 4-5, when WiFi is ON, LTE is ON, and the phone is in Sleep Mode but nothing on Zenfone 2. Have a friend with ZF2 that confirmed it happens sometimes but we doubt if it' s a phone issue or carrier issue.
Getting the network mode to 2G/3G seems to fix it, but it misses the LTE

try to restart the phone (?)

I reboot my phone every couple of days, but the bug sometimes appears in the phonecall right after rebooting

What messaging app are you using? I know I miss messages from my wife when I had textra in the "off" state with autostart manager. When I told it to start when the phone boots it started getting the text messages and mms's right away. Are you using a VPN or do you have weak signal and what firmware are you using?

make sure phone is allowed 2g/3g/4g all. If you restrict it to 4g only you will face such issues.

harpreet.s said:
make sure phone is allowed 2g/3g/4g all. If you restrict it to 4g only you will face such issues.
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I usually reboot in the mornings. But I US Google voice so the issues never really show up.

Stock FW (was on 168, now I'm yesterday patched versopm) , Stock SMS, no VPN, and set to 2G/3G/4G
As I said, the problem is fixed when I'm on 2G/3G, but it kinda loses the point to have an LTE plan

can you test with 4g on and wifi off.What carrier are you on. Because carriers can use wifi and lte combo in case you have same carrier providing both facilities.

harpreet.s said:
can you test with 4g on and wifi off.What carrier are you on. Because carriers can use wifi and lte combo in case you have same carrier providing both facilities.
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I'm on Uruguay Antel and it does not offer any combo whatsoever, voice calls are usually switched over to 3G when I'm on LTE, but somehow the network or my phone fails to switch sometimes

No VOLTE/Advanced calling.

I picked up this phone a few days ago and I just noticed that VOLTE wasn't working like it should. The settings menu shows that I have the option on, but everytime I make a call or receive a call it instantly switches from 4g to 1x, and therefore I don't have simultaneous voice and data. Anyone have this issue too?
I checked my Verizon account to see if that feature is enabled for my line. Advanced calling shows that VOLTE is on for calls and video chat. Turning it on and off doesn't change anything, turning wifi calling on and off doesn't affect it. I've tried rebooting, and no luck. Seems like a software issue?

I noticed this on a call today as well. Subscribing...

Perhaps the person on the other end needs it as well? I've found calls between my girlfriend and I would switch from HD to non-HD and it seemed like it was due to service on her end. Just a thought. Its actually only happened a couple of times to me.

Davexs28 said:
Perhaps the person on the other end needs it as well? I've found calls between my girlfriend and I would switch from HD to non-HD and it seemed like it was due to service on her end. Just a thought. Its actually only happened a couple of times to me.
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Click to collapse
No luck with that one either. I've tried calling other lines on my plans and I got the same results. My S5 did a pretty good job maintaining HD Voice every time I made a call to those lines where LTE coverage was available.
I called CS and they didn't say it was a common problem, but they put in a report pretty immediately for me and should have someone contacting me the next 24-48 hours.

Just a quick update. I didn't do anything, I used my phone as is and it just started switching to HD voice and maintaining LTE while calling. So either they did something on their side, or the phone is just a little buggy.

I have never had that VoLTE icon pop up on my phone but if I look in my recent calls list I do see a Wifi icon on some of the calls.. I assume this is VoLTE??
Sent from my SM-N930V using XDA-Developers mobile app

badboyg200 said:
I have never had that VoLTE icon pop up on my phone but if I look in my recent calls list I do see a Wifi icon on some of the calls.. I assume this is VoLTE??
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Click to collapse
That's WiFi calling.

I have used WiFi calling and it seems to work alright. Is this the same as VoLTE? If it is not how do you enable VoLTE?
I just found it in settings, it is enabled however I have never seen any kind of an icon that it is working. How do I know if it is or isnt?

Where is the setting for VoLTE in Settings? I am not seeing it anywhere.
EDIT: A google search showed me it should be in call settings, but it is not there. Any help much appreciated.

WiFi calling drops calls when handing over to cellular

I like the WiFi calling feature, because at some locations (like inside large Walmarts) there is no cell signal, but there is WiFi. However, having WiFi calling enabled creates a problem for me at my home. The cell signal in my house is up and down all the time (from one bar to full bars) and when it drops to two bars WiFi calling kicks in. That's fine, unless I'm in the middle of a phone call when the cell signal goes back up, because when it does the phone (Galaxy Note 10+) tries to switch back to cellular signal and in consequence the phone call is dropped. In the phone app when I tap on the three dots in the top right corner I see the setting for WiFi calling, and when it is switched on it says "cellular signal preferred". If I turn it off, then I have no WiFi calling at all. Any suggestions for how to avoid the disconnects when the phone tries to hand over the call from WiFi to a cellular signal?

Who is your phone service provider? See if other people using the same service have similar problems, sometimes the provider's software is not up to the task. I use Mint(T-mo mvno) on my N10+ and the switches are seamless, can't even notice them.

I have been dealing with this issue for about a month. I have At&t. If my wifi calling is on I cannot receive MMS at all. As soon as I turn it off the picture message will come through.
Sent from my SM-N975U using Tapatalk

Mystery solved
It is in fact a carrier issue. I'm on Telus a Canadian Network and if I pop in a SIM card from a different carrier and toggle on Wi-Fi calling it changes to prefer WiFi. I phoned Telus and they told me that prefer cellular signal is a deliberate choice on their part and that inserting their SIM card overrides the phone's default settings. I'm not happy with their answer but at least now I understand why I don't have the choice of selecting prefer WiFi.

butchieboy said:
I have been dealing with this issue for about a month. I have At&t. If my wifi calling is on I cannot receive MMS at all. As soon as I turn it off the picture message will come through.
Sent from my SM-N975U using Tapatalk
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Click to collapse
If i remember right...tmobile used to have this issue and the fix was to edit the apn and assign Multimedia Message Port to 80.
(If I'm remembering right...)
Sent from my [device_name] using XDA-Developers Legacy app

Crap, that is what that Port is set to. The problem occurs on all me devices. It has to be my router. At&t has no clue tired of wasting time calling them..lol thanks Lou
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