Develop Bugs

Honor 6X supports Dual card Dual standby

Honor 6X supports only dual card dual standby single pass, which means you cannot use both SIM cards for calls or data services simultaneously.
When you are on a call using SIM card 1, SIM card 2 cannot be used to make or answer calls. If someone calls SIM card 2, the caller will hear a voice message
similar to "The subscriber you dialed is out of the service area" or simlar to that depending on your service provider.
Similarly when you are using SIM card 1's data service, SIM card 2's data service will be disabled.
Why Single Pass ?
Honor 6X single pass feature helps reduce power consumption and increase the phone's standby time.

thats a battery friendly optin, but not everyones gonna like it..

thilak devraj said:
thats a battery friendly optin, but not everyones gonna like it..
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and how many of us use 2 cards at the same time for calling..unless the 1st call is over, we dont care about the 2nd call

shashank1320 said:
and how many of us use 2 cards at the same time for calling..unless the 1st call is over, we dont care about the 2nd call
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yes, but sometimes we use one sim for outgoing and another for incoming

thilak devraj said:
yes, but sometimes we use one sim for outgoing and another for incoming
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That is working fine..If I am on Jio sim for outgoing, I am getting incoming calls on my idea sim and can receive/reject as well.

shashank1320 said:
That is working fine..If I am on Jio sim for outgoing, I am getting incoming calls on my idea sim and can receive/reject as well.
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As you have mentioned JIO, I would like to confirm once whether you are using JIO voice app for outgoing call (LTE voice Call) ?
Bcos, while we are having outgoing call from JIO voice app, If we get any incoming call in 2nd SIM, the JIO data is disconnected which disconnects the call through it.
If we reject the call in that other SIM, then JIO network gets connected and JIO calls gets re-connected (If the intermediate time is less)

vsriram92 said:
As you have mentioned JIO, I would like to confirm once whether you are using JIO voice app for outgoing call (LTE voice Call) ?
Bcos, while we are having outgoing call from JIO voice app, If we get any incoming call in 2nd SIM, the JIO data is disconnected which disconnects the call through it.
If we reject the call in that other SIM, then JIO network gets connected and JIO calls gets re-connected (If the intermediate time is less)
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Agreed. just tested this..havent came across such situation earlier and got call only once when I was on call on Jio sim. Yes, I use jio4voice app as this is VOLTE phone but doesnt support the jio Volte yet (Chinese variant)
thanks for highlighting this buddy

shashank1320 said:
Agreed. just tested this..havent came across such situation earlier and got call only once when I was on call on Jio sim. Yes, I use jio4voice app as this is VOLTE phone but doesnt support the jio Volte yet (Chinese variant)
thanks for highlighting this buddy
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The same happens with my Honor 5X too. That's why confirmed.
Also, I need to know one thing. VoLTE is different for different networks or regions?

vsriram92 said:
The same happens with my Honor 5X too. That's why confirmed.
Also, I need to know one thing. VoLTE is different for different networks or regions?
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should be regions as bands are mostly the same in one region across different network.

shashank1320 said:
should be regions as bands are mostly the same in one region across different network.
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Seems that the chinese variant supports B3 and B40 LTE. So now LTE is getting connected in JIO. But VoLTE doesn't work?

vsriram92 said:
Seems that the chinese variant supports B3 and B40 LTE. So now LTE is getting connected in JIO. But VoLTE doesn't work?
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VOLTE work with Jio app only and not regular dialer...seems because its Chinese version and not compatible. heard that Letv also has same issue but was resolved with software update. once we have Indian version binaries out, we will try to upgrade and see.

shashank1320 said:
VOLTE work with Jio app only and not regular dialer...seems because its Chinese version and not compatible. heard that Letv also has same issue but was resolved with software update. once we have Indian version binaries out, we will try to upgrade and see.
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So to have VoLTE, we need to purchase the device in the respective region. Right ?

vsriram92 said:
So to have VoLTE, we need to purchase the device in the respective region. Right ?
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Think so..it supports volte based on the band so could be region specific.

Not everyone's gona like it:crying:

krispy321 said:
Not everyone's gona like it:crying:
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Especially 5X people don't like it.

vsriram92 said:
Especially 5X people don't like it.
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Excatly, they could have included it with a snapdragon or else a better gpu

AT&T wifi calling and VoLTE?

Will this be available for the Pixel 2 on AT&T?

jtl6060 said:
Will this be available for the Pixel 2 on AT&T?
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Most likely not....I have the N6P and it doesn't for work for me. They basically refuse to provision an account with the enhanced services like wifi calling and volte if you didn't buy the phone from them. They are the only remaining carrier that I know of that doesn't allow use of the enhanced services when you BYOD.
I have a theory though.....if you get a phone that they sell that has the enhanced capabilities and have them turn the services on...then you swap out the Sim and put that Sim in your pixel 2xl it should work.....
I thought about doing it but I don't need wifi calling and the VoLte and enhanced sms only work if the person on the other end has the same carrier and capable phone and the features turned on....so didn't think it was worth it try try out.

bsg411 said:
Most likely not....I have the N6P and it doesn't for work for me. They basically refuse to provision an account with the enhanced services like wifi calling and volte if you didn't buy the phone from them. They are the only remaining carrier that I know of that doesn't allow use of the enhanced services when you BYOD.
I have a theory though.....if you get a phone that they sell that has the enhanced capabilities and have them turn the services on...then you swap out the Sim and put that Sim in your pixel 2xl it should work.....
I thought about doing it but I don't need wifi calling and the VoLte and enhanced sms only work if the person on the other end has the same carrier and capable phone and the features turned on....so didn't think it was worth it try try out.
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It has to be a Google issue wether it's certifications or license issue. Someone much more in touch with how it all works would probably have a better answer. Purchased my wife's iPhone 8 unlocked (not carrier specific) from Apple directly not through AT&T. Her WiFi calling works. I'm also on the 6P and upgrading to Pixel 2XL even if it doesn't work? I guess I could try to put her sim into my phone when I get it.

jtl6060 said:
It has to be a Google issue wether it's certifications or license issue. Someone much more in touch with how it all works would probably have a better answer. Purchased my wife's iPhone 8 unlocked (not carrier specific) from Apple directly not through AT&T. Her WiFi calling works. I'm also on the 6P and upgrading to Pixel 2XL even if it doesn't work? I guess I could try to put her sim into my phone when I get it.
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Trust me...I have researched this extensively. I forgot to mention and serveral several rep confined this..... the only non att branded device they allow to use thier enhanced services is the iPhone bought straight from apple....no Android phones.

Yeah pixel 2 xl not working with enhanced voice. From what I heard the only reason it works with the iPhone is because Apple sets their own rules not the carriers. I think it's crap what they do. Verizon services usually work fine and tmobile works great too but coverage is spotty. I switched from T-Mobile to AT&T and love the coverage just miss being able to buy unlocked phones that will work with volte mainly don't really care for Wi-Fi calling.

My Pixel 2 XL on Oreo 8.1 seems to already have VoLTE enabled.
View attachment 4317131

vpkb said:
My Pixel 2 XL on Oreo 8.1 seems to already have VoLTE enabled.
View attachment 4317131
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On which network?

psg190 said:
On which network?
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AT&T

vpkb said:
AT&T
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Nice. Still no WiFi calling though, correct?
I'm a hack. Now see the grayed out button in your image.

vpkb said:
My Pixel 2 XL on Oreo 8.1 seems to already have VoLTE enabled.
View attachment 4317131
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When you place a call does it still drop to HSPA though?
Would you be willing to place a call and provide a screenshot? I'm really hoping att enabled this.

THEGAMEPLAY94 said:
When you place a call does it still drop to HSPA though?
Would you be willing to place a call and provide a screenshot? I'm really hoping att enabled this.
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If you call AT&T and get them to provision your IMEI for HD calling, it does indeed work.
EDIT: I should also add, your SIM card serial number last two digits (digits 9 and 10) MUST be greater than 27.
If they are not, you will need to get a new SIM card from AT&T.

THEGAMEPLAY94 said:
When you place a call does it still drop to HSPA though?
Would you be willing to place a call and provide a screenshot? I'm really hoping att enabled this.
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Click to collapse
Mine stays on LTE !

Go into the 4636 menu and see if it's provisioned. It was for me on vz. If it is, go into contacts and press on the 3 dots in the upper right corner. In the settings tab, there is a toggle for wifi calling.

I can confirm that VoLTE works. I contacted AT&T Tech Support this morning and specifically requested for them to update the IMEI # and provision VoLTE (HD Calling). I placed a test call and it sounded great, and stayed on LTE.
Additionally, I requested they Provisioned Wi-Fi calling. The Tech advised the Pixel 2 XL is not compatible but said he provisioned it on the line anyway. I don't think it's working though since it doesn't show that it's provisioned on the device information.

psg190 said:
Nice. Still no WiFi calling though, correct?
I'm a hack. Now see the grayed out button in your image.
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Here you go, see the HD in the screenshot, and yes, Wi-Calling still DOES NOT work. The AT&T Tech was kind to provision it anyway, maybe Google needs to turn it on as well.

uicnren said:
If you call AT&T and get them to provision your IMEI for HD calling, it does indeed work.
EDIT: I should also add, your SIM card serial number last two digits (digits 9 and 10) MUST be greater than 27.
If they are not, you will need to get a new SIM card from AT&T.
Click to expand...
Click to collapse
That would be the middle digits then right? My SIM card is 20 digits, but digits 9 and 10 are 27.
vpkb said:
Here you go, see the HD in the screenshot, and yes, Wi-Calling still DOES NOT work. The AT&T Tech was kind to provision it anyway, maybe Google needs to turn it on as well.
View attachment 4319415
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You have to be on 8.1 for VoLTE to work anyway right?

sabbotage said:
That would be the middle digits then right? My SIM card is 20 digits, but digits 9 and 10 are 27.
You have to be on 8.1 for VoLTE to work anyway right?
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if you physically look at the SIM, there is 2 rows of 10 digits, the top row, last 2 digits.
Yours should be fine,
I didnt check on 8.0, but I also didnt see the volte setting in advanced, so Im guessing it is only 8.1 right now.

uicnren said:
if you physically look at the SIM, there is 2 rows of 10 digits, the top row, last 2 digits.
Yours should be fine,
I didnt check on 8.0, but I also didnt see the volte setting in advanced, so Im guessing it is only 8.1 right now.
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Click to collapse
Ahhh ok. Yeah my top row on my SIM card ends with 27. I already had AT&T swap my IMEI on the SIM card since I moved it to my P2 XL from my old Pixel XL. I guess I'll have to ask them to provision VoLTE on my account now too.
Sent from my Pixel 2 XL using Tapatalk

I'm giving this a shot too considering they're advertising the welcoming of the Pixel 2 lineup. It's simply all about whitelisting so they should make this happen!
https://www.att.com/plans/google-pixel.html
The hardware obviously allows it. It's just a matter of AT&T adding the IMEI to their advanced calling lists.

Got them to add this to my account and I'm good to go. I wonder if we'll ever get WiFi calling

VoLTE not funcional with S9 Exynos

Hi there, greetings from Brazil. I just purchased a Samsung S9 SM-960F (XEF) from France, running Exynos. I am being able to use it here (Brazil) with 4G, both sim cards, however VoLTE calls are not active. I have it selected on networks settings and my sim card activates it on my wife's S10e. It seems that the issue is somehow related to the device. Is there any setting or procedure that needs to be done in order to activate it? I have already hard reseted the device and it is still not working.

Marciocons77 said:
Hi there, greetings from Brazil. I just purchased a Samsung S9 SM-960F (XEF) from France, running Exynos. I am being able to use it here (Brazil) with 4G, both sim cards, however VoLTE calls are not active. I have it selected on networks settings and my sim card activates it on my wife's S10e. It seems that the issue is somehow related to the device. Is there any setting or procedure that needs to be done in order to activate it? I have already hard reseted the device and it is still not working.
Click to expand...
Click to collapse
voLTE is something that is carrier dependent and can sometimes need provisioning in the telephony switch. Could be as simple as that particular line not having it enabled on an account level. It could very easily be a firmware thing too. My carrier offers voLTE but i lost that option in my settings menu when i flashed the U1 firmware. I bet it would come back if i flashed an at&t firmware set tho even tho im using an at&t mvno

It is carrier dependent. I have a dual SIM Exynos S9 here in the US. I have a Mint SIM (T-Mobile MVNO) in one slot and VoLTE & Wi-Fi calling work just fine. The other SIM is a Cricket SIM (AT&T MVNO) and, of course, there is no VoLTE or Wi-Fi calling on that line. Cricket only supports those features in phones they sell and, of course, iPhones.

Yeap, I got the point that VoLTE is carrier dependent. The issue is that my Brazilian Carrier (VIVO) does support VoLTE in my region and I was able to confirm it by inserting my simcard in my wife´s smartphone (Samsung S10e). I have been reading some articles and threads about CSC and other stuff, like firmware flashing. As I told, my device is a S9 SM-G960, with XEF (France) firmware version installed on it.

Marciocons77 said:
Yeap, I got the point that VoLTE is carrier dependent. The issue is that my Brazilian Carrier (VIVO) does support VoLTE in my region and I was able to confirm it by inserting my simcard in my wife´s smartphone (Samsung S10e). I have been reading some articles and threads about CSC and other stuff, like firmware flashing. As I told, my device is a S9 SM-G960, with XEF (France) firmware version installed on it.
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if the S10e is allowing voLTE, then it has the firmware built in for voLTE which might be particular to the the S10's, but thats something for the S10 forums. Regarding the S9, it needs the carriers firmware in order to utilize the voLTE feature

EVR-L29 Enable VoLTE

Is it possible to enable VoLTE when it's not enabled by default. I just bought this phone and I don't see the setting.
Thank you

Settings-Cellular Network-Mobile Data.
However, it must be supported by your Provider, otherwise it will not be displayed.

It's not there...that's strange 20 Pro is supported but 20X isn't

jirka607 said:
It's not there...that's strange 20 Pro is supported but 20X isn't
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Which Provider?
I use "3" in Austria.
With Yesss (A1) does not work but with "3" works.

Vodafone Czech Republic

It depends on simcard visit simcard customer care and replace simcard to volte enabled sim. Thats what i did when it didn't worked.

TAJ_Rocks said:
It depends on simcard visit simcard customer care and replace simcard to volte enabled sim. Thats what i did when it didn't worked.
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It worked on OnePlus 8 which I previously had. So I think sim card is not a problem

I have a Mate 20 with the same issue. VoLTE doesn't works on T-Mobile and is a software issue related to Huawei. Lots of people are having the same issue:
I Just made a post on Huawei Forums for see if we can report the issue. The more the people reports that increases the chances that this can be fixed:
​
https://consumer.huawei.com/en/community/details/topicId_120349/

Anyone get any clarity on this issue? I have AT&T in the United States and my IEMI was targeted for shut off today. After going a few rounds, they turned it back on but told me there was no way to prevent future pre-emptive shut offs because me EVR-L29 does calling over 3G which sends an automatic kill message. Further, as many have described, there is no switch to enable VoLTE in my settings. Are there other larger (7" plus) Chinese phones that are 4G LTE calling? Is there a way to address this issue with the EVR-L29? Thanks.

I don't see Wi-Fi Calling option in settings

I have s20 plus 5g snapdragon bought it from Hong Kong SM-G9860 (i don't live there) the network is working fine in my country and i get VoLte but not Vowifi there's an app called Wi-Fi calling i found it in the settings but i think it doesn't do anything

It is a button in the quick menu in the notification panel.

Gungcho said:
It is a button in the quick menu in the notification panel.
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Click to collapse
The only thing i found is the wifi calling app in settings there's no button/option in phone app or notification panel or in connection settings.

A-94 said:
The only thing i found is the wifi calling app in settings there's no button/option in phone app or notification panel or in connection settings.
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Click to collapse
Pull down the notification's, then you have on top the wifi, mobile data, location, etc buttons, there ( for me on the second page) is the wifi calling option.

It is carrier dependent.

Gungcho said:
Pull down the notification's, then you have on top the wifi, mobile data, location, etc buttons, there ( for me on the second page) is the wifi calling option.
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I tried searching the whole phone couldn't find anything.

Hmm as it is said up it might be carrier dependant. Which sucks, it is a neat feature and at home i use it all the time.

larryk said:
It is carrier dependent.
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I believe it's the software my network support both Volte and Vowifi and the s20 plus 5g all that mentioned in there website i don't know maybe because the phone is not bought in my country (only exynos is sold here)

A-94 said:
I believe it's the software my network support both Volte and Vowifi and the s20 plus 5g all that mentioned in there website i don't know maybe because the phone is not bought in my country (only exynos is sold here)
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It IS carrier dependant...
I have a Galaxy S20 Ultra, and when I bought it I was on a Verizon MVNO (Pageplus), I had VOLTE but not Wifi Calling (no sign of it)
I then switched to T-Mobile and I then had Wifi Calling available to me in the settings that were not there before.

Gungcho said:
Hmm as it is said up it might be carrier dependant. Which sucks, it is a neat feature and at home i use it all the time.
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I know, The strange thing is i had this issue with my previous phone (rog 2) i also bought it from another country and i got Volte and Vowifi using an app that enables both futures so the issue apparently in software

A-94 said:
I know, The strange thing is i had this issue with my previous phone (rog 2) i also bought it from another country and i got Volte and Vowifi using an app that enables both futures so the issue apparently in software
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What you can do is check your carrier and see if they support it. But if you have volte you should have vowifi..

A-94 said:
I know, The strange thing is i had this issue with my previous phone (rog 2) i also bought it from another country and i got Volte and Vowifi using an app that enables both futures so the issue apparently in software
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Click to collapse
If your network supports WiFi Calling the phone should have wifi calling in the call setting.

west2cool said:
If your network supports WiFi Calling the phone should have wifi calling in the call setting.
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Click to collapse
or in connections

Does the exynos version support VoLTE & wifi calling? My Greek carrier offers them.