Develop Bugs

Jio 4g volte not workibg

Hello lte 4g is working in my LG g4 h818p but I can't call from my phone because volte is not available any solutions for this

VoLTE not supported
sumitverma1 said:
Hello lte 4g is working in my LG g4 h818p but I can't call from my phone because volte is not available any solutions for this
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VoLTE is not supported by Marshmallow customized by LG though it is supported on the hardware (SoC).
For VoLTE to work in Jio SIM use JioJoin app from play store. This apps servers this calling purpose for the phones that do not support VoLTE.

Network problem on ONE PLUS 3

I just brought a One plus 3 last week.
I m using jio in sim slot 1 and bsnl in sim slot 2.
If I select cellular data on the Jio sim, both sims have network. But if I select cellular data on Bsnl sim, jio does not get network. I m using on oxygen OS 3.2.6.
It is hardware or software problem?

[email protected] said:
I just brought a One plus 3 last week.
I m using jio in sim slot 1 and bsnl in sim slot 2.
If I select cellular data on the Jio sim, both sims have network. But if I select cellular data on Bsnl sim, jio does not get network. I m using on oxygen OS 3.2.6.
It is hardware or software problem?
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thats probably because jio is a 4g only network and oneplus 3 doesn't support both sims running 4g at the same time.

bonham1988 said:
thats probably because jio is a 4g only network and oneplus 3 doesn't support both sims running 4g at the same time.
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But bsnl is not 4g right?

[email protected] said:
But bsnl is not 4g right?
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That doesn't matter, you can only set 4g network on the sim that has an active data connection. Suppose you have idea and Airtel and both have 4g, which ever sim is your data sim will be able to have 4g access.
Sent from my OnePlus3 using XDA Labs

[email protected] said:
I just brought a One plus 3 last week.
I m using jio in sim slot 1 and bsnl in sim slot 2.
If I select cellular data on the Jio sim, both sims have network. But if I select cellular data on Bsnl sim, jio does not get network. I m using on oxygen OS 3.2.6.
It is hardware or software problem?
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Click to collapse
I Have Oneplus 3T Us A3000 Model. I am From India
actually here is the main issue is Volte Related, meanwhile 4g is working internet working super but Volte for calling not working. even i switch on Volte in settings but still they did not work for i try everything.
then i search and got the band issue is here i checked my Network provider using Band 3,5,40.
but in my mobile has band 5. so i unlock rest network bands by Qcn File of CN.
successfully unlocked the all my network provider bands.
but still Volte is not working i try my all efforts and things factory reset, custom rom but still Volte not working for me.
2nd issue
even now only 1 sim can work at a time other network gone out and when i try to search network the error comes (error while searching network)
means dual stand by is not working for me. vice versa same when i switch internet on 2nd sim 1st network gone
even i switch 1 sim on 4G and other on 2G.
?please help me out my Oneplus 3T is down
---------- Post added at 07:42 AM ---------- Previous post was at 07:41 AM ----------
nikhil.agrawal said:
That doesn't matter, you can only set 4g network on the sim that has an active data connection. Suppose you have idea and Airtel and both have 4g, which ever sim is your data sim will be able to have 4g access.
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I Have Oneplus 3T Us A3000 Model. I am From India
actually here is the main issue is Volte Related, meanwhile 4g is working internet working super but Volte for calling not working. even i switch on Volte in settings but still they did not work for i try everything.
then i search and got the band issue is here i checked my Network provider using Band 3,5,40.
but in my mobile has band 5. so i unlock rest network bands by Qcn File of CN.
successfully unlocked the all my network provider bands.
but still Volte is not working i try my all efforts and things factory reset, custom rom but still Volte not working for me.
2nd issue
even now only 1 sim can work at a time other network gone out and when i try to search network the error comes (error while searching network)
means dual stand by is not working for me. vice versa same when i switch internet on 2nd sim 1st network gone
even i switch 1 sim on 4G and other on 2G.
?please help me out my Oneplus 3T is down

VOLTE(SIM-1) & 4G Data(SIM-2) Not Possible?!

Hey guys,
Just yesterday I came to know of this annoying problem with our device. For context, I use Jio as SIM-1 and Airtel as SIM-2. So what I was trying to achieve is to use 4G data from SIM-2 while SIM-1 was 4G & VOLTE enabled. But the irritating thing is this configuration as far as I tried not possible. Even searched all over XDA and ZUK forums for our phone and still no solution. While SIM-1 is the Data SIM, SIM-2 can still be 4G (but what's the frickin purpose). But When SIM-2 is the Data SIM, SIM-1 can't be 4G or have VOLTE flag. Then I thought if this is problem might be over if I interchange the SIMs in the slots. Now SIM-1 is Airtel and SIM-2 is Jio. Now also if I set SIM-1 to be Data SIM, Jio doesn't receive any frickin signal or VOLTE Flag. If Someone can please help me solve this problem, it would be very much helpful. Or I would like to know whether this problem is with a particular ROM only. I Run RR 5.8.4 with latest basebands and Darkmoon Kernel. Please Someone Help me with this.

Bro it's the same for any phone none have dual 4g standby and as you switch data sims the Airtel switches to 4g while jio gets downgraded to 3g where it can't work properly

spandu500 said:
Bro it's the same for any phone none have dual 4g standby and as you switch data sims the Airtel switches to 4g while jio gets downgraded to 3g where it can't work properly
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But dude when I have Jio as my Data sim, airtel is receiving 4G. I double checked that.

Incrovantilist said:
But dude when I have Jio as my Data sim, airtel is receiving 4G. I double checked that.
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I can confirm that.

And also I've checked three other phones (Oneplus 2, Mi Max, Le 2) where the phones donot completely lose signal (though happens rarely but a reboot rectified it). I think this is more of a ROM based feature than a hardware incapability. If anyone can confirm that this particular configuration of SIMs work on any other phone(s), we could probably port that feature atleast as a Magisk Module.

This is not a phone or ROM problem...its just that jio doesnt want users to use free voice while they are using different carrier for data!

Mi a1 getting dual volte feature via new software updates, so can't we?

Dual volte is successfully implemented on mi a1 with software and ours is SD 820 I think we can also enable it

Incrovantilist said:
But dude when I have Jio as my Data sim, airtel is receiving 4G. I double checked that.
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Most 4g have backward support 3g.. so even though the phone is latched on to 4g it is actually connected to 3g bands.. true volte is only jio.. if volte switch is off and you are still making calls then it's backwards 3g that is gsm network

Incrovantilist said:
But dude when I have Jio as my Data sim, airtel is receiving 4G. I double checked that.
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For me jio is volte first sim and Vodafone LTE on second sim.

can someone confirm me if airtel VoLTE is supported in their z2 plus even on single sim? I asked customer support of airtel and they said that our phone does not support VoLTE feature of airtel.

a peculiar problem about VoLTE

hi all, i have a quite peculiar query about VoLTE on my 8 Pro.
i have 8 Pro for about 3 weeks now. i am using Airtel and Jio sims in it. both are 4G enabled. i am able to use Jio VoLTE without any problems since day 1 on this phone. Recently airtel started VoLTE in my region (Chhattisgarh) but i haven't been getting VoLTE option when i selected airtel as default sim for data. but when jio sim was selected as default data sim VoLTE was properly showing. i removed jio sim and tried again with airtel. still no VoLTE. i contacted airtel service center and they informed that it should be available in a day or two. so i waited for few days. meanwhile i saw a list of compatible handsets on airtel's website and there is no Huawei/Honor phone there. there are only handful phones which support airtel VoLTE.
after so many days of airtel launching VoLTE i am still unable to get it on my 8 pro. while looking for the solution i came across this information that airtel has to work with the device manufacturers so that the manufacturer can provide a software patch to enable airtel VoLTE compatibility, which is happening at a very slow rate.
now what i don't understand is that why does a device need a software patch for VoLTE compatibility with a certain specific network when the device is already VoLTE enabled.? i understand it is not specifically related with 8 Pro but i didn't have any other forum to ask this. thank you...

itsmeharsh said:
hi all, i have a quite peculiar query about VoLTE on my 8 Pro.
i have 8 Pro for about 3 weeks now. i am using Airtel and Jio sims in it. both are 4G enabled. i am able to use Jio VoLTE without any problems since day 1 on this phone. Recently airtel started VoLTE in my region (Chhattisgarh) but i haven't been getting VoLTE option when i selected airtel as default sim for data. but when jio sim was selected as default data sim VoLTE was properly showing. i removed jio sim and tried again with airtel. still no VoLTE. i contacted airtel service center and they informed that it should be available in a day or two. so i waited for few days. meanwhile i saw a list of compatible handsets on airtel's website and there is no Huawei/Honor phone there. there are only handful phones which support airtel VoLTE.
after so many days of airtel launching VoLTE i am still unable to get it on my 8 pro. while looking for the solution i came across this information that airtel has to work with the device manufacturers so that the manufacturer can provide a software patch to enable airtel VoLTE compatibility, which is happening at a very slow rate.
now what i don't understand is that why does a device need a software patch for VoLTE compatibility with a certain specific network when the device is already VoLTE enabled.? i understand it is not specifically related with 8 Pro but i didn't have any other forum to ask this. thank you...
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The volte support presently is just for jio. The software has to be updated to support airtel volte and that can only be done when honor releases an update.
Volte enabled handset doesn't mean that it will work for every service provider. There are certain files that needs to be added to the software. The modem files need to be updated.
Sent from my DUK-L09 using Tapatalk

K.khiladi said:
The volte support presently is just for jio. The software has to be updated to support airtel volte and that can only be done when honor releases an update.
Volte enabled handset doesn't mean that it will work for every service provider. There are certain files that needs to be added to the software. The modem files need to be updated.
Sent from my DUK-L09 using Tapatalk
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can you please guide me towards any articles to know more about this?

You will ned updated firmware to support Airtel VoLTE. Besides you won't going to able volte on both sims simultaneously.
For now only two mediatek chipset support dual volte

[email protected] said:
You will ned updated firmware to support Airtel VoLTE. Besides you won't going to able volte on both sims simultaneously.
For now only two mediatek chipset support dual volte
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i am aware that simultaneous 4g/VoLTE on both sims is not possible in most of the SoCs including Kirin 960, and that is not even my requirement. i am just curious to why firmware needs to be updated to support any particular network. if that's the normal behaviour of VoLTE then phone manufacturers should mention which networks are supported for VoLTE in their device specs.

itsmeharsh said:
i am aware that simultaneous 4g/VoLTE on both sims is not possible in most of the SoCs including Kirin 960, and that is not even my requirement. i am just curious to why firmware needs to be updated to support any particular network. if that's the normal behaviour of VoLTE then phone manufacturers should mention which networks are supported for VoLTE in their device specs.
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No other careers uses VoLTE other than JIO( and now airtel in some states). That's why they configured it that way. When other career will launch VoLTE manufacturers will set it by default.
It is just like bios in pc motherboards. They update their bios to support new hardware.

[email protected] said:
No other careers uses VoLTE other than JIO( and now airtel in some states). That's why they configured it that way. When other career will launch VoLTE manufacturers will set it by default.
It is just like bios in pc motherboards. They update their bios to support new hardware.
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that makes no sense whatsoever. if a device is 'xyz service' compatible without any region or network locking then that service should work out of the box. which network is offering which service is irrelevant for device manufacturers. it doesn't make any difference if all the networks provide any particular service or not, manufacturers' configurations ought to remain same.
and your pc motherboard analogy is completely irrelevant as well.

[email protected] said:
No other careers uses VoLTE other than JIO( and now airtel in some states). That's why they configured it that way. When other career will launch VoLTE manufacturers will set it by default.
It is just like bios in pc motherboards. They update their bios to support new hardware.
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or if you have any source of information backing what you are saying then i'd be happy to know more about it.

itsmeharsh said:
that makes so sense whatsoever. if a device is 'xyz service' compatible without any region or network locking then that service should work out of the box. which network is offering which service is irrelevant for device manufacturers. it doesn't make any difference if all the networks provide any particular service or not, manufacturers' configurations ought to remain same.
and your pc motherboard analogy is completely irrelevant as well.
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Raise your concern in clubhonor then.

[email protected] said:
Raise your concern in clubhonor then.
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i have contacted Huawei and they have told me that they are currently in testing phase for airtel VoLTE, but that's not the issue at all. i appreciate your efforts but it would had been better if you actually understood what i was trying to ask here. thank you...

A Brief about VoLTE
Hi, so here's the thing. As you would be aware, VoLTE is just that, Voice over LTE. And, there's a reason as to why that terminology is used only for 4g (LTE) & not for 3g or 2g. 2g and 3g were developed with the concept of them being used for voice transmission whereas 4g (LTE) wasn't developed for simultaneous voice transmission. Hence, the term, VoLTE indicating that the voice part is an addition & not an integral part of LTE, bro.
By now, as you would have guessed, since voice is an addition, hence, there are no international standard protocols for it. Each Service Provider has their own protocols. Also, to support VoLTE, the Service Provider has to change its entire infrastructure. Hence, Airtel and Vodafone are rolling it in phases and are unable to do a national rollout.
So, to summarise, different Service Provider.....different protocols and hence, separate firmware and patches. And, to answer your final question regarding support for Jio. It's because at the time of development of most of the phones released in 2017, only data for Jio VoLTE was available and hence, the handsets are arriving with native support of Jio VoLTE
Hope, I have answered your query to your satisfaction

Huawei Honor view 10 is the only Honor device that has support for Airtel voLTE.
This is so sad that the mobile manufacturers take soooo long to work with operator and provide a patch update.
Most of the brands are more concerned about promoting their new mobile models and least concerned about giving updates to exisiting users

H8 Pro on Oreo volte enabled for Airtel?

Anyone using Airtel volte in Honor 8 Pro? I enabled volte calls in settings. But i don't see volte symbol in status bar. Do we need to ask customer care of Airtel to activate it?

san.cspro said:
Anyone using Airtel volte in Honor 8 Pro? I enabled volte calls in settings. But i don't see volte symbol in status bar. Do we need to ask customer care of Airtel to activate it?
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As of now VoLTE calls support is for Vodafone and Jio only (according to changelog of oreo update). Airtel's Volte support might be added in next updates (if any). Airtel customer care can't do anything about it. You may try contacting honor/Huawei customer care.

Thanks for replying. I contacted Honor. Please see the screenshot. They say H8Pro supports Airtel VoLTE.

Volte present
This is confusing since Airtel is testing Volte and is in beta in most places and will be rolled out soon but my phone shows volte present for Airtel network. Location: Bangalore

It means Airtel VoLTE is already available in Bangalore. Good to know that H8 Pro supports Airtel VoLTE. Unfortunately, I am not getting it in my phone in Chennai.

Just an update guys. Airtel VoLTE started working at the recent EMUI update 8.0.0.320

i can confirm it has been enabled after the face unlock update ...i'm using airtel with volte in nagpur

i am from bilaspur, chhattisgarh and volte started working on my honor 8 pro few days after i updated to B320. it started without any indication. i just noticed "volte" icon on top one day, don't know since when it was there.

No Airtel volte
I'm from telangana and airtel has volte in my state but I'm not getting volte symbol on my mobile. Morever it switches to 3G whenever i make a call which makes signals to go down to null n then again start increasing after switching to 3g which is causing delay in call connection..??

Could someone who is using airtel volte on honor 8 pro share a screenshot of it??

Airtel VoLTE working on honor 8 pro in Madurai, Tamil Nadu.

Paul Dundigalla said:
Could someone who is using airtel volte on honor 8 pro share a screenshot of it??
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Yes working

Thank you bro...??
Thank you..??
---------- Post added at 04:44 PM ---------- Previous post was at 04:27 PM ----------
I wrote to airtel about volte, and they replied me stating volte is not available for my number now. Is it that volte is given only for specific customers??

Paul Dundigalla said:
Thank you..??
---------- Post added at 04:44 PM ---------- Previous post was at 04:27 PM ----------
I wrote to airtel about volte, and they replied me stating volte is not available for my number now. Is it that volte is given only for specific customers??
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it is for specific area they are upgrading towers and connectivity will soon available in your area. It is around 10 days im getting volte in airtel

No Airtel volte
Finally, today morning I started to see volte symbol on my mobile..??

I dont understand how this work.....volte worked on my samsung s8 plus, installed NEE (nordic countries unbranded) to get Volte. I have installed latest EMUI 8.0. on my honor 8 FRD-L09- 8.0.0.562 ...cant get volte to work on Honor 8???

Yes volte working perfectly

chrisss5000 said:
I dont understand how this work.....volte worked on my samsung s8 plus, installed NEE (nordic countries unbranded) to get Volte. I have installed latest EMUI 8.0. on my honor 8 FRD-L09- 8.0.0.562 ...cant get volte to work on Honor 8???
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From what I know, VoLTE is only available to the Indian variant of Honor 8
Correct me if I'm wrong.