Can anyone out there see if they get the same behavior as me?
I'm in a band 12 area, with a 4 bar LTE signal.
Wifi calling is enabled but CELLULAR PREFERRED, I'm connected to the T-Mobile ASUS router on Verizon FiOS (2.4, 5ghz, doesn't matter).
Long press 1 to get into your voicemail. What you expect to hear:
"You have no new messages in your mailbox..." is chopped off and what I hear is:
"mailbox..."
If I turn off wifi, the issue goes away. If I turn off wifi calling, the issue goes away. If I change the wifi calling setting so that it uses wifi preferred or always (so the call is an actual wifi call), the issue goes away. If I force the phone to use HSPA, the issue goes away.
So even though the call isn't a wifi call, something about wifi calling and wifi, even though the call goes through VoLTE, is causing the start of a call be be chopped off.
At this point I have disabled wifi calling on my phone.
amarryat said:
Can anyone out there see if they get the same behavior as me?
I'm in a band 12 area, with a 4 bar LTE signal.
Wifi calling is enabled but CELLULAR PREFERRED, I'm connected to the T-Mobile ASUS router on Verizon FiOS (2.4, 5ghz, doesn't matter).
Long press 1 to get into your voicemail. What you expect to hear:
"You have no new messages in your mailbox..." is chopped off and what I hear is:
"mailbox..."
If I turn off wifi, the issue goes away. If I turn off wifi calling, the issue goes away. If I change the wifi calling setting so that it uses wifi preferred or always (so the call is an actual wifi call), the issue goes away. If I force the phone to use HSPA, the issue goes away.
So even though the call isn't a wifi call, something about wifi calling and wifi, even though the call goes through VoLTE, is causing the start of a call be be chopped off.
At this point I have disabled wifi calling on my phone.
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I have the same set up, I'll turn off WiFi and report back, as I've noticed the same issues...
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---------- Post added at 06:36 PM ---------- Previous post was at 06:30 PM ----------
Seems better... I'll keep it like this and see...
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My theory on what's happening here is this:
While you're telling the system too use VoLTE and setting cellular preferred, it's starting the call on Wi-Fi calling and handing off to VoLTE.
The reasoning it's simple...when on Wi-Fi, cellular data is deactivated. VoLTE depends on cellular data. When you start a call, it establishes it via Wi-Fi calling, and establishes the cellular data connection. Once that connection it's up, handover occurs, but this causes a few seconds of Audio loss because it has to set that back up.
You can see the delay yourself by turning off Wi-Fi, then turn off mobile data. Turn mobile data back on and you'll see the delay between enabling and being reconnected too the LTE network.
Hope this helps explain the issue. It's a handoff delay caused by having to reconnect mobile data and LTE, and you likely wouldn't notice for normal calls, but VM answers immediately.
Sent from my LG-H901 using Tapatalk
toastido said:
My theory on what's happening here is this:
While you're telling the system too use VoLTE and setting cellular preferred, it's starting the call on Wi-Fi calling and handing off to VoLTE.
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I understand what you're saying and thanks for the explanation. And I realize that when wifi is on, data is going through wifi and would have to switch to LTE for a call. So this does make sense to some extent. But.... if wifi is on but wifi calling is not, the calls happen quickly and are not chopped off. But the same holds true - the data is going through wifi and would have to switch to LTE. Your reasoning explains it for wifi calls always and wifi calls never.
amarryat said:
I understand what you're saying and thanks for the explanation. And I realize that when wifi is on, data is going through wifi and would have to switch to LTE for a call. So this does make sense to some extent. But.... if wifi is on but wifi calling is not, the calls happen quickly and are not chopped off. But the same holds true - the data is going through wifi and would have to switch to LTE. Your reasoning explains it for wifi calls always and wifi calls never.
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That's because with wifi calling ON, the call is initially set up through wifi calling, and has to hand over once the mobile data connection is up, LTE is negotiated, and VoLTE is negotiated. If wifi calling is OFF, the call is established via GSM, then (optionally, but not usually) handed over to VoLTE once LTE is up and VoLTE is negotiated.
I've done work in the industry with VoLTE, and my day job involves VoIP, so it's not as simple as one might think. Believe it or not, GSM to VoLTE handoff is much easier than WiFI calling to VoLTE. It still explains it, believe it or not, it's just a matter of which path. It's also harder to hand off from VoLTE to GSM when you roam out of a VoLTE area... which is the primary cause for VoLTE call drops.
toastido said:
Believe it or not, GSM to VoLTE handoff is much easier than WiFI calling to VoLTE.
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Why haven't they implemented that then? That hurts them in the rootmetrics etc. scores where they'd test phone calls.
For example, band 12. You make a VoLTE call, drive to out of range of LTE and the call drops to HSPA or Edge. It nevers goes back to LTE. So when they're doing their tests, if the call switches away from LTE, then they drive to an area that is band 12, when the HSPA signal gets weak, the call gets dropped even though there's a great band 12 signal.
amarryat said:
Why haven't they implemented that then? That hurts them in the rootmetrics etc. scores where they'd test phone calls.
For example, band 12. You make a VoLTE call, drive to out of range of LTE and the call drops to HSPA or Edge. It nevers goes back to LTE. So when they're doing their tests, if the call switches away from LTE, then they drive to an area that is band 12, when the HSPA signal gets weak, the call gets dropped even though there's a great band 12 signal.
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That's actually a great question...and unfortunately one I can't answer or even begin to speculate on...
¯\_(ツ)_/¯
Sent from my LG-H901 using Tapatalk
toastido said:
That's actually a great question...and unfortunately one I can't answer or even begin to speculate on...
¯\_(ツ)_/¯
Sent from my LG-H901 using Tapatalk
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Back to my original point though - what I'm hearing is that this isn't unique to the V10. I'm wondering why this isn't all over the internet where people are noticing that the start of their phone call is missing when wifi calling is enabled but they've set it to cellular preferred (which is NOT the default BTW).
Related
The Wi-Fi Calling is working but sometimes it will say service disable and sometimes T-Mobile just depends on if it hits a tower or not. My last phone whether connected through just Wi-Fi Calling or on a tower would always say T-Mobile, is this a common characteristic of this phone?
Sent from my LG-P769 using Tapatalk 2
TheCoutures said:
The Wi-Fi Calling is working but sometimes it will say service disable and sometimes T-Mobile just depends on if it hits a tower or not. My last phone whether connected through just Wi-Fi Calling or on a tower would always say T-Mobile, is this a common characteristic of this phone?
Sent from my LG-P769 using Tapatalk 2
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I don't know, I disabled WiFi calling. When it says service disabled are you...
1.) Connected to WiFi?
2.) Are you able to make WiFi calls?
Because if my guess is right, it says service disabled because you aren't on the WiFi, and then when it says T-Mobile WiFi Calling Service or whatever, it's because you're on the WiFi and able to make a call with your signal.
Ilxaot said:
I don't know, I disabled WiFi calling. When it says service disabled are you...
1.) Connected to WiFi?
2.) Are you able to make WiFi calls?
Because if my guess is right, it says service disabled because you aren't on the WiFi, and then when it says T-Mobile WiFi Calling Service or whatever, it's because you're on the WiFi and able to make a call with your signal.
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No I can still make and receive calls but when I notice I cycle the network and generally it refreshes it, it's just weird.
Sent from my LG-P769 using Tapatalk 2
While in Mexico next month can I WiFi call to the US on my g3 ?
I have the HTC One (M8) and did my update (Which added the Wi-Fi calling app). I am currently in Mexico (Been here since Saturday) and I couldn't get the Wi-Fi calling to kick in while connected to a Wi-Fi. Everytime I tried to connect by enabling the Wi-Fi the location part of the Wi-Fi calling app would kick in and I would get a message something to the effect that wi-fi calling wouldn't work in my current location (Not exact words but that is what it would tell me). So I decided to turn off the locate me feature in the Wi-Fi calling app and enter my home address (from the US) and it said confirming address took a while and it seemed like nothing happened. A little while later all my text messages and my voicemail s started to show up on my phone and the Wi-Fi calling icon showed up on my status screen.
I'm going to be honest. I was also tinkering with the network connection settings and manually selected cdma/lte in the network mode and enabled Domestic voice and data. I just wanted to get some type of service (i didn't care if it was going to go into roaming because I needed to make calls back to the states). So I'm assuming I am using the Wi-Fi calling feature because I don't have the data portion on the phone turned on and I don't have international voice or data enabled. But I will find out on my bill next month.
If I'm really on Wi-Fi calling mode then the key (i think is to trick the location servive of the Wi-Fi calling app to think you in the US by typing in an address in the US and not letting the app locate you automatically to Mexico....
I was trying to upload screen shots from my phone but the web browser let's me. I will pots the images after the 19th..
matt406regal said:
While in Mexico next month can I WiFi call to the US on my g3 ?
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Seems I remember Sprint telling me its not supported at this time, will in the future.
sent from my G3
Thank you for the heads up. Ill give it a try next month
Just returned from Mexico
matt406regal said:
Thank you for the heads up. Ill give it a try next month
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I just returned from Mexico and had turned the wifi calling on my last day their. At first worked great made a few calls back and it worked crystal clear. Then it started to ask for location I tried everything even when it did accept a location over the border in the U.S.(I was in a border town) it stopped working. My friend who has the wifi calling from T-mobile had no problem. Hopefully Sprint (lol) will get a clue.
Hey guys, I have a T-Mobile branded Galaxy S5 (SM-G900T) that I'm using on Metro PCS and whenever I connect to wifi I can't receive mms messages. I will get the text and it will ask me to download the image but then I get a never ending progress bar. So then I'll turn off WiFi and I will have bars but the 4G LTE indicator will be gone and the only way to get it back is to reboot the phone. Any ideas as to what this could be? I have tried using both the T-Mobile & Metro PCS APN settings but the issue still happens no mattter which APN the phone is set to. Any help would be greatly appreciated. Thank you!
namicone said:
Hey guys, I have a T-Mobile branded Galaxy S5 (SM-G900T) that I'm using on Metro PCS and whenever I connect to wifi I can't receive mms messages. I will get the text and it will ask me to download the image but then I get a never ending progress bar. So then I'll turn off WiFi and I will have bars but the 4G LTE indicator will be gone and the only way to get it back is to reboot the phone. Any ideas as to what this could be? I have tried using both the T-Mobile & Metro PCS APN settings but the issue still happens no mattter which APN the phone is set to. Any help would be greatly appreciated. Thank you!
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What rom are you using? that would be the first question. Little more info sir....thanks
AxAtAx said:
What rom are you using? that would be the first question. Little more info sir....thanks
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Click to collapse
No ROM, it's stock.
wifi calling enabled and set to only make calls on wifi?
This will happen when you have wifi calling enabled. That is why you see the cell signal bars go gray or grayed out. Turn off wifi calling and you will see you signal bars come back, as long as you have cell signal (service) at your house.
galaxyuser88 said:
This will happen when you have wifi calling enabled. That is why you see the cell signal bars go gray or grayed out. Turn off wifi calling and you will see you signal bars come back, as long as you have cell signal (service) at your house.
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Click to collapse
Having WiFi calling enabled won't affect your data and messaging at all unless there is a connection issue with the router.
namicone said:
I'm using on Metro PCS and whenever I connect to wifi I can't receive mms messages. I will get the text and it will ask me to download the image but then I get a never ending progress bar.
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Click to collapse
It sounds like a connectivity issue on the routers side if the APNs are correct. I would go back to Metro PCS APNs then check your signal strenth and link speed in the phones WiFi settings, then check to make sure WiFi calling does not display an error in the call settings. If all 3 are good then check your client list on router and make sure phones IP address and MAC id is there. If IP and MAC id are good run diag log on router and possibly change/test different wireless channels on your router.
I never have WiFi calling enabled so I don't see that as a cause, and I have tried both the MetroPCS and T-Mobile APN settings and it still happens. I'm still able to receive calls and send text messages but I can't receive MMS messages or access data. The only way to fix the issue is to turn on airplane mode for about 10 seconds and then turn it off and I get the 4GLTE signal indicator back along with full service. Its really weird because when this happens, I still have a signal indicator with 3-4 bars but the only the 4GLTE indicator disappears.
namicone said:
I never have WiFi calling enabled so I don't see that as a cause, and I have tried both the MetroPCS and T-Mobile APN settings and it still happens. I'm still able to receive calls and send text messages but I can't receive MMS messages or access data. The only way to fix the issue is to turn on airplane mode for about 10 seconds and then turn it off and I get the 4GLTE signal indicator back along with full service. Its really weird because when this happens, I still have a signal indicator with 3-4 bars but the only the 4GLTE indicator disappears.
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I will get the same issue as stated above. When you have bars present with no data icon, its because your phone is latching on to another network when MetroPCS is not to be found. At my office, T-Mobile service is the pits, yet i get bars present. I usually open the dialer and type *#0011# and it will show what band your phone is picking up, from there you can tell if you are really on MetroPCS or someone elses network.
I am experiencing an intermittent problem where Wifi Calling gets disabled on incoming/outgoing phone calls. The button starts out looking enabled, but the second I accept an incoming call or dial outward I notice the Wifi Calling icon gets grayed out. Once the icon gets grayed out, the call experience is equivalent to having Wifi Calling enabled. In other words, it seems to be dropping back to LTE. I have very poor reception in my office so LTE calls drop out very frequently.
How do I go about troubleshooting the underlying cause?
Background information:
* The phone is an unlocked, unrooted Samsung S9+ running Android 8.0.0. The model number is SM-G965W. The build number is R16NW.G965WVLU2ARF7.
* My service provider is Rogers (Canada). They have noticeably worse LTE service than my previous provider (Telus) but it's unclear whether this is the cause of the problem.
* The phone is connected to my home router, running OpenWRT 18.06.1.
* The internet connection is 25Mbps down, 10Mbps up.
Are there any sort of log files I could look into which would indicate why Wifi Calling is getting disabled, or dropping to LTE?
If this forum isn't the right place to ask, where else could I ask?
Thank you,
Gili
Hello all!
I have a Samsung A01 (SM-a015AZ) unlocked from Cricket, being used in Pakistan. Internet over LTE works perfectly, however the phone does not support VolTE and so it is only possible to send sms or call over 2g/3g. There's no problem when making a call as the phone automatically drops from LTE to 3g, however that does not happen when someone else tries to call me. The phone does not drop from LTE, nor do I even get any missed calls/sms notifications, but to the person calling me it seems like my phone is unreachable.
There are 3 options present in the preferred network mode (LTE, 3g, 2g) If I set it to 3g, all calls work fine, but with really really bad internet (EDGE). I have even tried to see if any settings in the advanced network configuration menu (By dialing *#*#4636#*#*) would make a difference, however I've had no luck so far. I would really appreciate it if someone can help me with this.
tl;dr Samsung A01 drops from LTE to 3g to make calls, however does not drop when someone else is calling and so does not receive any calls.