Issue with WIFI calling - T-Mobile Samsung Galaxy S8 Questions & Answers

So I have little to no service at my house so all my calls are done through wifi calling. My question is I'm having people call me and it goes straight to voice mail especially my wife. I can get text messages and thats how I'm finding out people are calling me. Please help

I'm don't have any resolution I'm afraid but I cant attest that Wi-Fi Calling on my T-Mobile Galaxy S8 is also terrible. And that would be with an excellent wifi signal on a fast connection with low latency. Tested on multiple connections that get 5mbps+ upstream, and people say the quality on the their end is terrible. On my current connection I'm seeing 60/6, I'm right by the router, and T-Mobile 611 folks said they could barely understand me.

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WiFi Calling Not Working

Hello! I have very recently bought a N4 on TMO, and one of the features I was eager to try was WiFi calling. However, it seems not to work. I can't send texts and can only call intermitently , but can't receive calls. I've been reading that this seems to be a known issue on the GS5 at least, but what about with the N4? Is there any fix?
Derek0228 said:
Hello! I have very recently bought a N4 on TMO, and one of the features I was eager to try was WiFi calling. However, it seems not to work. I can't send texts and can only call intermitently , but can't receive calls. I've been reading that this seems to be a known issue on the GS5 at least, but what about with the N4? Is there any fix?
Click to expand...
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Call t mobile and have then set it back up for you.
BAD ASS NOTE 4
I've had a few issues with WiFi calling. It is possible that it is my router, but sometimes when I make a call it will go through but the person on the other end can't hear me even though I can hear them just fine. If I turn off WiFi and try it using the mobile network they can hear me fine.
Sometimes it has to do with setting ur e911 address with tmobile if u get a red error message most likely means the 911 address is not filled in.You can call tmobile or go to tmobile.Com and set ur self.Maybe a new rom using international kernel wifi calling won't work must be a tmobile kernel
I also have issues with Wi-Fi calling. 2/10 times it works fine. The other 8 times it's one way audio. I can hear them no issue, but they cannot hear me. T-Mo says it has to be my router but the thing is I have 3 other android devices on T-mobile network on the same Wi-Fi connection that has no issues making or receiving calls on it.
Before the Note 4 I had an S4, which I still have and it had no issues either.
Hope they get it fixed.
It's not the e911 address because mine is already set, and I'm not more than 10ft from the router.
raw2000j said:
Sometimes it has to do with setting ur e911 address with tmobile if u get a red error message most likely means the 911 address is not filled in.You can call tmobile or go to tmobile.Com and set ur self.Maybe a new rom using international kernel wifi calling won't work must be a tmobile kernel
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International kernel def not working atm.

Dropped Calls With HD Voice On

I usually have only a 3G signal where I live and the route to and from has one area of a very weak signal. My Razr HD Maxx would always drop a call there. My New Droid Turbo with HD voice on drops calls in that same weak signal area and sometimes at home I drop calls or can’t even make a call. I have confirmed when I turn HD voice off, no problems. Is it just me or is this normal because the phone needs 4G for the HD calling to work?
Thanks,
Ken
Normal. We have no fallback network with VoLTE.
emgo said:
I usually have only a 3G signal where I live and the route to and from has one area of a very weak signal. My Razor HD Maxx would always drop a call there. My New Droid Turbo with HD voice on drops calls in that same weak signal area and sometimes at home I drop calls or can’t even make a call. I have confirmed when I turn HD voice off, no problems. Is it just me or is this normal because the phone needs 4G for the HD calling to work?
Thanks,
Ken
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Click to collapse
Yup. Verizon themselves recommend shutting off the feature until you're in an area with good LTE coverage. Furthermore if you know you'll be on a call while driving to a 3G area don't start the call with voLTE, they're not doing handoffs from voLTE > 3G and the call will drop.
I've been pleasantly surpised by how robust VoLTE is here in Salt Lake. On Monday, I travelled 30 miles on the freeway, from Salt Lake County to Utah County, and maintained a phone call the entire 35 minute drive. Crossing the county line has historically had drop issues, although Verizon wasn't as affected as AT&T. No problems on VoLTE!
VoLTE is really starting to piss me off. Every call sounds like sheet, my google voice is broken, i drop calls and my network extender thing i got from verizon doesn't work with VolTE.
So, my choices are to have sheet service or to not have data and voice at the same time.. Score 1 for Verizon, they got me this time with the Turbo. Should have went a different route but, my last phone was toast and I had to get something
Call quality sucks, but my Google voice is just fine.
xkape said:
VoLTE is really starting to piss me off. Every call sounds like sheet, my google voice is broken, i drop calls and my network extender thing i got from verizon doesn't work with VolTE.
So, my choices are to have sheet service or to not have data and voice at the same time.. Score 1 for Verizon, they got me this time with the Turbo. Should have went a different route but, my last phone was toast and I had to get something
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There should be a built in thing Verizon does so that if you are at, say, 2 bars or lower it kicks off to non advanced calling. Turning it off and on all the time is stupid. Also, turning it on and off each time breaks GV.. so who is going to set that up 15 times a day as you move in and out of good 4g? I realize they don't really care that I use GV but, I do..lol
xkape said:
There should be a built in thing Verizon does so that if you are at, say, 2 bars or lower it kicks off to non advanced calling. Turning it off and on all the time is stupid. Also, turning it on and off each time breaks GV.. so who is going to set that up 15 times a day as you move in and out of good 4g? I realize they don't really care that I use GV but, I do..lol
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to me it feels like advance calling is still in alpha stage. I have it off right now till i see it gets better
My Google Voice stopped working as well. Uninstalled, reinstalled and set up forwarding again and everything is fine. Just follow the GV guide and things will be right as rain
HD Voice calling it's just not there yet.
This is my experience with Verizon's Galaxy S6 64GB sapphire black HD calling. I've had to disable the feature because of drop calls. Below I'm including what I've posted in other forums discussing the HD voice calling and my experience when I contacted Verizon wireless tech support.
"Verizon is aware of the HD voice/video feature being the culprit of the dropped calls, they are blaming Samsung for not pushing an update to correct the problem. Meanwhile Samsung has said that the feature is a Verizon software. I was told by their tech support that it has been reported that there's a 50% dropped call increase using the galaxy S6 while having the HD voice/video feature on, this was 2 weeks ago. The agent said they have a search tool like Google search, this is internal and that's where he found this information.
You can not make calls and surf the web without the HD voice/video feature on, but turning this feature off will STOP THE DROPPED calls. Verizon's software side for galaxy S6 does not allow you to make calls on the 4G LTE network when the HD voice/video feature off, instead is shows 1x.
I have been in touch with Verizon wireless tech support for the last 3 weeks now, this past week Verizon has been sending me texts to update me on the progress of my ticket. I've had Samsung tech support in conference call with Verizon tech support; during this call that lasted more than 3 hours Verizon admitted that it wasn't a Samsung problem but Verizon's. As soon as the tech from Samsung hanged up the call because we were told that I would have to call their engineering department to further assist us. Before the Samsung tech agent hung up the call we had asked if I could make calls using the 4G LTE and was told to hold up while he researched this question. As soon as the Samsung tech agent left the conference call the Verizon tech answered no, and proceeded to make a complete 360 on answers he gave prior to the Samsung agent leaving the call, saying that the problem was not a Verizon but Samsung problem, even though moments before he said that it wasn't a Samsung problem to me and the Samsung tech support agent but Verizon's. I was also advised by the Verizon tech agent that if I wanted to, I could JAIL BRAKE my Galaxy S6 and download a software to disable the HD voice/video feature without losing the 4G LTE but that it probably still won't work properly. I told this agent that I've never jail broken a device and don't plan on because this is clearly a Verizon feature not working properly.
Not even 5 minutes after ending the call with Verizon's tech support, a supervisor from Verizon called me to tell me again that this is a Samsung issue not Verizon, he said that Samsung needs to push a SW version update to fix the problem with the HD voice calls dropping. He asked what I wanted, I said to get the Galaxy S5 and return this phone, but that I was told by 2 different stores (Rockville Centre NY, and Merrick NY both in Long Island) that if I wanted to return this phone or exchange for a different one I would be charged a 40% restocking fee even though I was within my 14 days. I was told by the tech before the supervisor called that it was at each store's discretion whether they charged you a restocking fee or not. I was told to consider this mater resolved by the supervisor, that they will get in touch with the store so I can return the phone and if in fact there are any fees I would be refunded in some sort of credit; but all I've received all of last week is text messages letting me know they are still working on my ticket."

[Q] Advanced wifi calling T-Mobile M9

I have been told that the M9 does not support advanced wifi calling. I'm not sure about my terminology, but what I mean is that it cannot hand a wifi call off to the LTE/HSPA network.
However I have just finished demonstrating that it does hand off without dropping the call, and to the HSPA network. I had noticed this behavior the other day, but in a discussion in an article on fiercewireless, i was told this is technically impossible.
My M9 is set to wifi calling, wifi preferred, and when I make the call in the driveway, the dialer says "wifi call", the call connects and the phone icon in the statusbar is green, and the phone beeps at me with a message that I'm near the edge of the wifi calling area and the call may drop. I drive away, the call never drops, the beeping/message stop, and the green phone icon in the statusbar becomes white. And I'm connected to "4G", not 4G LTE.
Who told you it didn't support it?
I myself, don't like the feature. Especially when I have little to no service, it'll constantly be searching for service(draining my battery) when I'm connected with WiFi calling.
Hoping it'll be able to be disabled in custom ROMs.
I think the screen name was Fabian and it was in the discussion about Sprint offering the international data like T-Mobile. He seems to be knowledgeable and was adamant that this is not possible. I think he said it's only possible on the iPhone 6. Aside from that, I myself thought it was impossible for a WiFi to hspa handoff, yet this is what I'm seeing.
Hopefully they make it official since it does work
I'm pretty sure I read that this was a new feature. . . I'll look for the source I read this from.
Sent From My HTC One (M8)
It's a new feature with the S810.
Wish it'd give you the option...
just wondering
Have u guys seen the aggressive Wi-Fi to cellular handover setting in developer settings?
not sure what to think I never use Wi-Fi call just thought I'd share. Because it might help those that have calls dropped. Worth a shot to check the box and try.
T-Mobile (re)enabled wifi/cell handoff with Uncarrier 8 several months ago. A decent LTE connection is required for the handoff but nearly every LTE handset can do so (coming to the Nexus 6 Real Soon Now.)
The Sprint person is incorrect, but a their wifi calling implementation is, quite frankly, bizarre, so I'm not surprised at their being clueless over T-Mobile's.
Nothing unique about the HTC One m9's wifi calling except it being on a really great handset.

WiFi calling to cellular handoff

I'm finding that when I'm on a WiFi call and leave the house, the phone dosent switch to cellular. The phone drops the call and I have to call the person back. Is there any setting to enable smooth handoffs or is this an inherent issue with WiFi calling?
goinflyn said:
I'm finding that when I'm on a WiFi call and leave the house, the phone dosent switch to cellular. The phone drops the call and I have to call the person back. Is there any setting to enable smooth handoffs or is this an inherent issue with WiFi calling?
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Have you tried going into developer options, and ticking aggressive WiFi to cellular handoff?
I'll give that a try. Thanks
If you are on T-Mobile, I don't think it will do a WiFi-Cellular hand off, will it? I thought T-Mobile still uses IMS technology.
The older wifi calling tech, UMA, does handoffs nicely. The older Blackberrys and Nokias have it.
Enabled the aggressive wfi to cellular handoff and that seems to work now. Thanks.

Wi-Fi Calling

What do others think of the Wi-Fi calling service on the device. I find it absolutely appalling with 98% of calls failing, breaking up or poor quality.
Anyone else experience the same issues
walkerx said:
What do others think of the Wi-Fi calling service on the device. I find it absolutely appalling with 98% of calls failing, breaking up or poor quality.
Anyone else experience the same issues
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Nope. Works perfectly for me
Which network u with and which ISP?
I'm on Three UK with Sky as ISP
I've been told by Three UK that if got minimum signal then WiFi calling won't work properly and device will keep switching between mobile network and WiFi.
They also said to switch to airplane mode then re-enable WiFi and Bluetooth.
They also wanted me to try different WiFi network which I can't do.
Sent from my Huawei P20 Pro using XDA Labs
Works brilliantly for me on EE and Virgin, much better than the S7 Edge I came from.
I don't have a setting for wifi calling, even though I did with the same network on my iPhone. Any ideas?

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