Develop Bugs

[Q] MMS and 4G?

Sorry if this has been asked/answered. I couldn't find a thread about it in my search.
My question is how to get MMS working over 4G?
If my 4G radio is on, MMS won't send or receive. I have to drop down to 3G to get either to go. Has anyone else experienced this, or know of a fix? Right now I'm running Myn's Warm 2.2 RLS2 rom, but I also had the same problem on Ava Froyo v9 so I'm thinking it's not a rom issue.
Thanks

That could be because 4G is more like Wifi than it is 3G, and you can't send MMS over Wifi. So whenever you want to send an mms, you gotta turn on your 3g, send, then turn it off. Or you can leave 3g, and go to your wireless and network settings and disable "3g always on." 3g should be inactive when you're using only 4g and then go active as soon as you begin sending an mms.

ms79723 said:
That could be because 4G is more like Wifi than it is 3G, and you can't send MMS over Wifi. So whenever you want to send an mms, you gotta turn on your 3g, send, then turn it off. Or you can leave 3g, and go to your wireless and network settings and disable "3g always on." 3g should be inactive when you're using only 4g and then go active as soon as you begin sending an mms.
Click to expand...
Click to collapse
That would be awfully annoying, and a really large flaw in 4G if I have to turn off 4G every time I want to send or receive an MMS message.
I couldn't find that option you said, the only thing I could find that even sounded similar was under Settings -> Wireless & Networks -> Mobile Networks and it was called Enable always-on mobile data.
I turned that off and still couldn't send with my 4G radio on. Not sure if I have to reboot for the change to take effect or something, because I didn't do that.

bump. Still curious if this is by design or if there's something I can fix.

crackerstyle said:
That would be awfully annoying, and a really large flaw in 4G if I have to turn off 4G every time I want to send or receive an MMS message.
I couldn't find that option you said, the only thing I could find that even sounded similar was under Settings -> Wireless & Networks -> Mobile Networks and it was called Enable always-on mobile data.
I turned that off and still couldn't send with my 4G radio on. Not sure if I have to reboot for the change to take effect or something, because I didn't do that.
Click to expand...
Click to collapse
ah, thats what i meant "enable always-on mobile data." leave that enabled, then while you're on 4g and you send something through MMS, it will keep you connected on 4g, and activate your 3g at the same time, sending the MMS.
Edit: Sorry about my first post in this thread, i meant to say enable that option, not enable.

ms79723 said:
That could be because 4G is more like Wifi than it is 3G, and you can't send MMS over Wifi. So whenever you want to send an mms, you gotta turn on your 3g, send, then turn it off. Or you can leave 3g, and go to your wireless and network settings and disable "3g always on." 3g should be inactive when you're using only 4g and then go active as soon as you begin sending an mms.
Click to expand...
Click to collapse
I can send and receive MMS with WiFi just fine.

ms79723 said:
ah, thats what i meant "enable always-on mobile data." leave that enabled, then while you're on 4g and you send something through MMS, it will keep you connected on 4g, and activate your 3g at the same time, sending the MMS.
Edit: Sorry about my first post in this thread, i meant to say enable that option, not enable.
Click to expand...
Click to collapse
It was enabled by default, so it was already enabled when I had this problem.
freeza said:
I can send and receive MMS with WiFi just fine.
Click to expand...
Click to collapse
I'm talking about 4G, not wifi.

My only other thought is that 4G isn't official in my area yet, it's in testing I'm guessing since i pull a signal, but Sprint doesn't acknowledge there is $g here on their site.

freeza said:
I can send and receive MMS with WiFi just fine.
Click to expand...
Click to collapse
Out of curiosity how?
I tried sending an SMS over wifi while in airplane mode and it wouldn't work.

crackerstyle said:
Out of curiosity how?
I tried sending an SMS over wifi while in airplane mode and it wouldn't work.
Click to expand...
Click to collapse
Doesn't airplane mode cancel wifi?

m4rk0358 said:
Doesn't airplane mode cancel wifi?
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Click to collapse
Nope, I was using it that way on a plane back on Weds of last week. Tried to send an SMS text and it wouldn't let me. internet browsing was working fine.
I figure that's the only way you should use a cell phone on a plane, as just turning off mobile data doesn't disable the phone signal too.

freeza said:
I can send and receive MMS with WiFi just fine.
Click to expand...
Click to collapse
+1 i'm on wifi at home and sent mms all day long on wifi

crackerstyle said:
I'm talking about 4G, not wifi.
Click to expand...
Click to collapse
4G is a advanced type of wifi

mms is sent through mobile data only, not 4g not wifi
when you are on wifi your 3g will randomly connect for mms updates/refresh, on 4g your 3g will do it too, it will be a concurrent connection with no visible connection
airplane mode shuts it down completely so if on wifi in airplane mode there are no mms

crackerstyle said:
Out of curiosity how?
I tried sending an SMS over wifi while in airplane mode and it wouldn't work.
Click to expand...
Click to collapse
That's because SMS needs a mobile connection as it uses the physical cell network to send.
MMS, on the other hand, does not. MMS can be sent on another data source (wifi, etc..)

snapbox said:
That's because SMS needs a mobile connection as it uses the physical cell network to send.
MMS, on the other hand, does not. MMS can be sent on another data source (wifi, etc..)
Click to expand...
Click to collapse
Curious then, as my MMS messages won't send if I have my 4G radio on, but SMS will.
Didn't try MMS when I was on the plane and just on wifi..
Jbcarrera said:
+1 i'm on wifi at home and sent mms all day long on wifi
Click to expand...
Click to collapse
With your data off?

I too must disable 4g to send mms... I am on frost and flashed to another "senseless sense based Rom" both were using the aosp mms program, I wonder if thats the problem????

MMS not working on wifi calling

Ok so I flashed the deodexed (Whitehawkx version) stock rooted T-Mobile update with wificalling. I was super excited for it to be released blah, blah, blah then I went to send an mms. No go. Just hung. So I figured it must be because I'm on a deodexed rooted rom. I asked friend (thanks doc) who had just updated using the T-Mobile method to tey sending an mms while on wificalling. No dice. I'm wondering how many of us have this problem. It seems to be a T-Mobile issue, but I'm no dev. Just a big fan.
Thanks
DARKSIDE

It seems to work for me but it takes forever to send the images/media - unless the phone finally decided to use edge to sent the message while still connected to wifi calling. Though, I assumed once it's connected to wifi calling, it only uses wifi. Can anyone confirm this?

KaneHusky said:
It seems to work for me but it takes forever to send the images/media - unless the phone finally decided to use edge to sent the message while still connected to wifi calling. Though, I assumed once it's connected to wifi calling, it only uses wifi. Can anyone confirm this?
Click to expand...
Click to collapse
I can't answer that for sure. Hmm maybe I don't give it enough time, for me and doc it doesn't send until right after we disconnect from wifi. Thanks for the feedback.
DARKSIDE

This is a problem with the Wifi calling feature. It disables MMS and does this on multiple phones. I had this same problem on my Mytouch 4g as well.
There is a response from a Tmobile employee on the Tmobile support boards for wifi calling and the G2 which says http://support.t-mobile.com/message/4487.
This is normal. WiFi Calling registers through your wifi and disables the mobile networks to do so. Some T-Mobile apps have the ability to temporarily force a GPRS connection to verify you. The only away to avoid this is to disable or turn off WiFi Calling.
This is also why calls drop when leaving your wifi network's signal range. It needs to disconnect and re-register on the T-Mobile network.
Click to expand...
Click to collapse

i have a gs2 in one hand and a mt4g in the other. wifi calling on on both. the gs2 sends instantly without ever connecting to data, the mt4g connects to data and takes ~10 seconds to send. maybe depends on things like your router or something.

mikeyinid said:
i have a gs2 in one hand and a mt4g in the other. wifi calling on on both. the gs2 sends instantly without ever connecting to data, the mt4g connects to data and takes ~10 seconds to send. maybe depends on things like your router or something.
Click to expand...
Click to collapse
Mms? Crazy. I have a mytouch4g also and did the same thing and the mytouch4g sent and gs2 not at all. Haha. Oh well thanks.
DARKSIDE

raycaster3 said:
Mms? Crazy. I have a mytouch4g also and did the same thing and the mytouch4g sent and gs2 not at all. Haha. Oh well thanks.
DARKSIDE
Click to expand...
Click to collapse
the reasom i suggest it being router is that at work on company wifi, cant send or receive mms w/wifi calling on. at home it sends no problem, and here on the hospital wifi it sends fine also, idk

mikeyinid said:
the reasom i suggest it being router is that at work on company wifi, cant send or receive mms w/wifi calling on. at home it sends no problem, and here on the hospital wifi it sends fine also, idk
Click to expand...
Click to collapse
I'll check at some diffferent places to see what's up. I appreciate the info.
DARKSIDE

raycaster3 said:
I'll check at some diffferent places to see what's up. I appreciate the info.
DARKSIDE
Click to expand...
Click to collapse
Did you update your baseband to the most recent one. That could be a problem.
Sent from my SGH-T989 using xda premium

Killbynature said:
Did you update your baseband to the most recent one. That could be a problem.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
No, but the other person who had the problem did update everything including the baseband and he had the issue.
DARKSIDE

Mine will not mms on wifi either. It doesn't even send once you get back on cell. It just says sending. My vibrant was the same way!! Fck! Annoying!

escrowdog said:
Mine will not mms on wifi either. It doesn't even send once you get back on cell. It just says sending. My vibrant was the same way!! Fck! Annoying!
Click to expand...
Click to collapse
Yeah I'm not too thrilled either since it worked on sensation and mytouch4g and mytouch4g slide. What gives?
DARKSIDE

mikeyinid said:
the reasom i suggest it being router is that at work on company wifi, cant send or receive mms w/wifi calling on. at home it sends no problem, and here on the hospital wifi it sends fine also, idk
Click to expand...
Click to collapse
You need to remember that the firewall settings are different from place to place. As an example I use a Cisco router at home and WiFi calling will connect but I could not hear the person on the other end initially. I had to look at what the router was doing, figure out what the firewall was blocking and unblock it.
It's likely the firewall at your work is letting some, but not all of the necessary traffic through. You could ask the IT guys if they can look and see what their firewall is blocking from your phone and ask them if they'll unblock it... They may or may not want to help and they may use the information to completely block your phone from being able to connect to the tmobile servers on the other side.

Wifi calling for CM10

Looking to enable wifi calling for CM10. It is obviously there in the default Tmobile stock.

Not possible for CM10 and developers will probably never build it in since most phones/providers don't support wifi calling. Also, unlike phones like my old HTC G2 where wifi calling is a separate app, the SGS2 implements a new version of wifi calling that is built into the ROM.

Bottom line, if you need or want wifi calling, you need to be on a TW ROM, no if's or but's about it.
Sent from the pink Unicorn from the Darkside.

Thanks for the info!

Actually, these guys are really misleading you. It's not that it can't or won't be done, it just hasn't been done yet.
There was even a version of T-Mobile WiFi calling that worked great on the HTC HD2 which wasn't even an Android phone, so it's completely false to say "Not possible for CM10", it just hasn't been done yet. They may be correct that it will never be built in, but someone will eventually make a derivative ROM that will have it, or you will have a flashable zip for it.

You can also use voip.
Sent from my SGH-T999 using Tapatalk 2

there are phones out there that have wifi calling on cm9 and cm10. hell they even have it on MIUI

anderroid said:
Looking to enable wifi calling for CM10. It is obviously there in the default Tmobile stock.
Click to expand...
Click to collapse
Groove-IP works pretty good

I've seen a lot of people suggesting that we use our Google Voice (GV) number instead of WiFi calling.
If I use GV, and assuming I set it up properly....
When people call my cell number, does it ring when I only have wifi and no cell service?
When I make calls out on WiFi only, so people see my cell number or my GV number?
In what ways is it different than use T-Mobile WiFi calling?

KevlarTheGreat said:
I've seen a lot of people suggesting that we use our Google Voice (GV) number instead of WiFi calling.
If I use GV, and assuming I set it up properly....
When people call my cell number, does it ring when I only have wifi and no cell service?
When I make calls out on WiFi only, so people see my cell number or my GV number?
In what ways is it different than use T-Mobile WiFi calling?
Click to expand...
Click to collapse
You can forward you cell number to your google voice number, when you want wifi calling. I have mine set up to start at 6pm till 8am when I'm home. Works perfectly. I use grooveIP free, with a strong wifi signal, calls are very clear.

wt iz wifi calling app??
---------- Post added at 09:10 AM ---------- Previous post was at 09:04 AM ----------
go to this link for download!!!!!!!!
http://forum.xda-developers.com/showpost.php?p=26105230&postcount=2

zrayhanx said:
wt iz wifi calling app??
---------- Post added at 09:10 AM ---------- Previous post was at 09:04 AM ----------
go to this link for download!!!!!!!!
http://forum.xda-developers.com/showpost.php?p=26105230&postcount=2
Click to expand...
Click to collapse
I would be VERY VERY hesitant to flash something made for a different phone, much less different manufacturer. How about you try it and let us know. With screenshots of course.

VoiD_Dweller said:
Groove-IP works pretty good
Click to expand...
Click to collapse
I agree, rarely have problems with Groove-IP and Google Voice..
Sent from my Nexus 7 using Tapatalk 2

can someone explain to me why wifi calling is cool?

WiFi calling is "cool" or useful because it allows for using WiFi as cell phone signal. I've worked in buildings which had no cell phone signal, and without WiFi calling, it would take hours for a text message to find the signal to creep through, so it was very useful.
I've tried GrooveIP and GVoice and they were way too buggy to rely on.

DIMENSIONAL said:
WiFi calling is "cool" or useful because it allows for using WiFi as cell phone signal. I've worked in buildings which had no cell phone signal, and without WiFi calling, it would take hours for a text message to find the signal to creep through, so it was very useful.
I've tried GrooveIP and GVoice and they were way too buggy to rely on.
Click to expand...
Click to collapse
And to add to this...some of us use our voice in certain areas mostly (like home) and Wi-Fi calling allows us to get a low minute plan since Wi-Fi calling doesn't use minutes.
Sent from my SGH-T989 using xda app-developers app

blackangst said:
And to add to this...some of us use our voice in certain areas mostly (like home) and Wi-Fi calling allows us to get a low minute plan since Wi-Fi calling doesn't use minutes.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Actually it can or does use your minutes... I know sounds foolish huh. I've seen some discussions on this in a few different places/sites and I still don't have a 100% clear answer. On the TMOUSA site regarding wifi calling, towards the bottom in grey txt it says:
"Capable device and Wi-Fi connection required. Wi-Fi Calling may decrement plan minutes. Except for UMA devices, device will not transition between Wi-Fi and the wireless network."
I think it's a case of if you're using it excessively they would start to deduct it kind of thing, but who knows. It's probably so they can change their minds in the future without any hassle, for instance, if people are using the heck out of it and they are losing as a result.

By default, it will use your minutes but now they have a free WiFi calling feature that you can add which makes calls made over WiFi free + unlimited, at least that's how it was last time I knew.
I would also really love to see the feature added to cm10 someday... It used to come with cm7 when I used it on my G2.
Sent from my SAMSUNG-SGH-T989

Try Netflix over wifi, any issues?

Just recieved my G4 from T-Mobile. Factory fresh device here. When using the Netflix app while on wifi im recieving problems. Basically sometimes doesnt log me on at all. Then when i do switch to cellular data, it then works. Also the videos take longer then usual to start if it does start at all. I have the Note 4 right beside me connected to the same wifi, works without a problem. I did factory reset again to eliminate singular instances. Doesnt seem to effect the outcome. Anyone else with similar problems??

No issues for me on my Verizon G4 on Wi-Fi.

No issues for my tmo variant.
Does this issue replicate on other Wi-Fi networks as well?

I haven't used Netflix long on the G4 but when I was checking it out it seemed 100% fine. Logged in superfast and playback as well. I did testing vs my Note 2 and the G4 blew it away how fast everything was loading etc.

I had to turn off Wi-fi calling. I couldn't sign into Netflix with it on. Netflix is working fine for me with it off.
~ sent from my LG G4 (H811) using Tapatalk

jesamyn said:
I had to turn off Wi-fi calling. I couldn't sign into Netflix with it on. Netflix is working fine for me with it off.
~ sent from my LG G4 (H811) using Tapatalk
Click to expand...
Click to collapse
Sounds like a QOS issue on the router.

Sfkn2 said:
Sounds like a QOS issue on the router.
Click to expand...
Click to collapse
Not likely, in my case at least. The router in question is an ASUS RT-N16 running a Tomato variant with QoS rules that have been working flawlessly for me for two years. In addition, I wasn't even using Wifi calling, it was simply enabled. My N5, N7, and Galaxy S2 have no problems signing in. The error I received had to do with the network time. As soon as I disabled Wifi calling, the error resolved.

Turning off wifi calling worked. Thanks for the advice.

So after getting the replacement G4 in store my Netflix not working either without Wifi calling off. The old phone was able to play back fine with it on. Can anything else be tried. Since Wifi calling is a feature I use at my house since we have bad signal area and only use Netflix on Wifi so they both need to be working. I tried everything from Netflix chat will try a modem/router reboot again.
I did another factory reset and only connected the 5G wireless signal (thought maybe that was the issue) it worked right away but once google service updated again thats it wont work without Wifi calling off so...
Anyone other Tmobile users can test this or Netflix and say if they need to have Wifi Calling off or not ?
I do believe it's something with the Google Service update since I tried it again same issue. I did find out you don't have to turn Wifi Calling off but change it to Cellular Network Preferred instead of Wifi Preferred. It does work if you change it back to Wifi sometimes but only if the video is preloaded but it's hit or miss if it works but if you play another video you will have to change it back to Cell or Off.

WiFi + "WiFi Calling" + NetFlix does not work
I had the same problem with my new "LG G4" phone. If connected to WiFi and the "Wi-Fi Calling" feature is enabled then I get these NetFlix app errors:
- Please make sure that your device has network connectivity and the Date and Time settings are acurate (-3)
or
- Sorry, we could not reach the Netflix service. Please try again later. If the problem persists, please visit the Netflix website (12001).
I tested on multiple very high quality WiFi networks.
The workaround was to:
- Disable "Wi-Fi Calling" when using WiFi and NetFlix
or
- Don't use WiFi, instead use T-Mobile's cellular data network

Thanks but look @ Sfkn2 post at the top member is with Tmobile and said no problems. I replied around that time no issues but now I have the problems. Yes those are the errors.
Someone is to blame and they all just want to point fingers at each other. It's on Tmobile to fix this and that probably won't happen.

Right. Apparently I can't take a screen shot for you guys to see while the movie is playing. But you can see I'm connected to WiFi calling on tmo network..
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Sfkn2 said:
Right. Apparently I can't take a screen shot for you guys to see while the movie is playing. But you can see I'm connected to WiFi calling on tmo network..View attachment 3367145View attachment 3367150
Click to expand...
Click to collapse
Yes that's what strange that I had 1 of them working on it but both don't now unless I change to Cellular Network Preferred . Can you tell me if your on a 5GHz or 2.4GHz connection or if both work and then your Router model. The connection shouldn't matter much since I had it working on both and found the 5GHz was strong enough to use in most my house and was using that most of the times. Might try changing the channels or something.
I have the Asus RT-AC68U (not the Tmobile one) I bought this just after release.
Streaming to my phone using the Emby app from my Emby server works fine as well.
I know we have a work around to atleast Stream but need to get this sent to the right places for a fix.

BDestroyer8418 said:
Yes that's what strange that I had 1 of them working on it but both don't now unless I change to Cellular Network Preferred . Can you tell me if your on a 5GHz or 2.4GHz connection or if both work and then your Router model. The connection shouldn't matter much since I had it working on both and found the 5GHz was strong enough to use in most my house and was using that most of the times. Might try changing the channels or something.
I have the Asus RT-AC68U (not the Tmobile one) I bought this just after release.
Streaming to my phone using the Emby app from my Emby server works fine as well.
I know we have a work around to atleast Stream but need to get this sent to the right places for a fix.
Click to expand...
Click to collapse
Netgear N600 - model WNDR3400V3.
Makes no difference whether it's 2.4 or 5. Dynamic IP setting. QOS option is off.

I posted the issue over at http://www.reddit.com/r/tmobile/comments/3bedec/lg_g4_netflix_not_working_with_wifi_calling/ and got a response from a Tmobile Employee which I believe is on the Engineering side. They are going to report the issue so it's a start to see if they can fix it.

WiFi calling on T-Mobile

I am having trouble forcing my phone to do WiFi calling. I have a netgear r7000 with ddwrt
Any tips?
Sent from my Nexus 5X using Tapatalk

Unfortunately, there are not many settings on the phone's end other than on/off, WiFi preferred and cellular preferred.
What setting do you have your phone on?

GreenDroidX said:
I am having trouble forcing my phone to do WiFi calling. I have a netgear r7000 with ddwrt
Any tips?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Once I registered the phone with the network (Via: Settings>More>Cellular networks>Network operators) Wi-Fi calling got better.
It is kinda shifty because it will try to use the network even if the connection won't support a call.
Then again it could be the APN.

No trouble for me when testing it out.
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Sent from my Nexus 5X using Tapatalk

RakumiAzuri said:
Once I registered the phone with the network (Via: Settings>More>Cellular networks>Network operators) Wi-Fi calling got better.
It is kinda shifty because it will try to use the network even if the connection won't support a call.
Then again it could be the APN.
Click to expand...
Click to collapse
I think you're onto something. My T-Mobile WiFi calling was working OK, but it would take up to 30 seconds to connect a call and other times WiFi calling would drop for no reason.
I did what you suggested, but WiFi calling was still goofy (didn't always work right). So, I did a reboot and now, WiFi calling is as fast as normal calling, I haven't seen any dropping of WiFi calling AND for the first time, I'm seeing the WiFi calling symbol on the call screen. Prior to that, it only said "WiFi calling" on my lock screen and the pull down under the signal icon.
Thanks for the tip!

RakumiAzuri said:
Once I registered the phone with the network (Via: Settings>More>Cellular networks>Network operators) Wi-Fi calling got better.
It is kinda shifty because it will try to use the network even if the connection won't support a call.
Then again it could be the APN.
Click to expand...
Click to collapse
Here is it working with me forcing it to use Wi-Fi calling. Sending SMS and MMS works too.
Sent from my Nexus 5X using Tapatalk
---------- Post added at 10:12 PM ---------- Previous post was at 10:10 PM ----------
Tidbits said:
Here is it working with me forcing it to use Wi-Fi calling. Sending SMS and MMS works too.
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Did you guys try a new sim?
Sent from my Nexus 5X using Tapatalk

I would have issues with after the call was connected fine and talking several minutes the other person couldn't hear me and then the call would just drop. I could hear them fine but they couldn't hear me at all. So I changed the
Wifi Call setting to Cellular Preferred. I'm going to try registering with network and rebooting and changing it back to Wifi Preferred and see if that improves the operation. Anyone seen that issue and did this resolve it?

bg1906 said:
I would have issues with after the call was connected fine and talking several minutes the other person couldn't hear me and then the call would just drop. I could hear them fine but they couldn't hear me at all. So I changed the
Wifi Call setting to Cellular Preferred. I'm going to try registering with network and rebooting and changing it back to Wifi Preferred and see if that improves the operation. Anyone seen that issue and did this resolve it?
Click to expand...
Click to collapse
The instructions seemed to work for me. So far, so good. I just had a wifi call and it didn't drop and the end user heard me ok. Thanks!

bg1906 said:
The instructions seemed to work for me. So far, so good. I just had a wifi call and it didn't drop and the end user heard me ok. Thanks!
Click to expand...
Click to collapse
Crazy. I use Wi-Fi preferred and it takes a second to kick on. When it does it works pretty well.
However I do get a notification that I'm not connected to T-mobile (Even on Wi-Fi).

RakumiAzuri said:
Crazy. I use Wi-Fi preferred and it takes a second to kick on. When it does it works pretty well.
However I do get a notification that I'm not connected to T-mobile (Even on Wi-Fi).
Click to expand...
Click to collapse
WiFi calling still will not switch over when I have no service. WiFi calling on this phone is very strange
Sent from my Nexus 5X using Tapatalk

Does airplane mode, then turn on Wi-Fi only allow T-Mobile Wi-Fi calling/SMS to work?

wpbear said:
Does airplane mode, then turn on Wi-Fi only allow T-Mobile Wi-Fi calling/SMS to work?
Click to expand...
Click to collapse
Yes it does. At least for me it does. It also does MMS. See some of my screenshots in previous pages. Airplane on and I am making calls as example of I working. Here's a screenshot of SMS and MMS over Wi-Fi. Probably would have been better taking video.
Sent from my Nexus 5X using Tapatalk

Tidbits said:
Yes it does. At least for me it does. It also does MMS. See some of my screenshots in previous pages. Airplane on and I am making calls as example of I working. Here's a screenshot of SMS and MMS over Wi-Fi. Probably would have been better taking video.
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Yea that's not working for me either. When in airplane mode with WiFi on all calls fail. WiFi calling is on and WiFi preferred.

Don't know what to say as it works for me. Haven't had a problem yet.
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I'm having issues with texting over WiFi. For some reason it has trouble sending mms and occasionally it fails to send even normal sms.

So I finally got WiFi calling in airplane mode to work. You have to turn on airplane mode then turn on WiFi and if you dont have WiFi calling working yet then try toggling WiFi calling in settings off then on. If that doesn't work reboot while in airplane mode. This should do the trick. Also I noticed that putting phone on WiFi calling will not automatically turn off cell signal. And if you decide to turn off airplane mode and back on again later then WiFi calling may not work again and all you should have to do then is toggle WiFi calling again.
I know some of this sounds like a pain but in places with very little service this can save your battery.

Thank you, hopefully future updates improve this.

Little wonky here also
Noticed it becomes disconnected just sitting on my desk 10 ft from the router. Wish it would turn off the cellular radio to preserve battery. Initially my tests using airplane mode were not working. Saw this thread and indeed it is working now.

Are there any APN settings or Tmo-Account settings needed to enable Wifi Calling? What about specific SIM versions? Let's make an actual list of requirements so that people can troubleshoot on their own.

I have the most current sim. Whatever the settings the phone has with the exception of iPv6 I changed that to IPv4/IPv6.
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