Hi - I have LS980 on cm12 rom. I have subscribed to Airtel 4G connection however I was informed that LS980 does not support 2300mhz and hence 4G is not possible unless the Airtel also starts providing 4G connection on 1800mhz.
Would someone be able to guide/help me in letting me know if it's something can be done so my phone thinks I have 2300mhz, similarly like "QUALCOMM NV CALCULATOR".
Please let me know if this is possible to have 4G/LTE from Airtel in India on LS980?
airtel 4g
I think the only model that supports 4g lte in india is d802t. Airtel provides at 2300mhz only...
Latest updated Indian stock ROM 15s
VoLTE calls simply do not work. They disconnect after 2-10 seconds. Network is Reliance JIO. It is 100% LTE with VoLTE only calling and does not support any normal calling via GSM.
In short, Le Max 2 is simply worthless if using it under VoLTE network for calling.
Hello,
I am not sure how VoLTE works with the x727 and stock rom. I am from Mexico and my carrier is AT&T, they offer a "HD Voice" feature (https://www.att.com.mx/servicios/voz-hd.html), they say it only works while having 4g signal, wich I have almost all the time, and the call must be between 2 at&t phones. My problem is that every time I make a calthe signal drops to 3g (the icon changes to H or H+), is this normal? Could it be a problem with my phone or the AT&T network?
Thank you all
You can have HD voice over HSPA+. VoLTE is even higher voice quality. I'm not sure if Movistar has VoLTE capability but likely they have HD voice over their HSPA network.
I am from India and was using Marshmallow on my Samsung Galaxy S4 GT-I9505 LTE model. I was able to get Reliance Jio signal and data connectivity. I upgraded to Nougat (crdroid as well as lineage) but then I could not get the data connectivity though I was getting registered through Jio. I could view the same signal levels in the status but LTE or up/down arrow stating the data connectivity not showing. And since Jio works on VOLTE, I am not able to use this at all because of no data connectivity. I am sure there must be some settings if not BUG in the nougat version for I9505 phone. Please help!!!
Have you considered checking the APN?
I have Samsung s4(gt i9505) LTE variant of s4 and is using in India with more than 4 years without any issue on one of the LTE(4G) network(Idea /airtel/vodafone) and it worked.
Now i started using JIO SIM which is 4G network for both data and voice ,with this SIM , i can see that my SAMSUNG S4 is successfully register with JIO network. and able to see signal bars . however when i try to enable Mobile Data. it did not work nor calls are coming and vice versa.
For those who are saying that they are having frequent call drops when calling from jio this info may help you.
Jio works on 3 lte bands viz. 850Mhz, 1800 mhz and 2300mhz but volte calling only supported on 2300mhz band (maybe on 1800mhz also, I don't know about that). But higher frequency networks have low coverage area that's why for many regions jio network changes its frequency band automatically to lower frequency bands for better coverage due to which your call drops. To fix this you need to lock your network 4g band but most of the roms doesn't support band locking.
rohansalunkhe71 said:
For those who are saying that they are having frequent call drops when calling from jio this info may help you.
Jio works on 3 lte bands viz. 850Mhz, 1800 mhz and 2300mhz but volte calling only supported on 2300mhz band (maybe on 1800mhz also, I don't know about that). But higher frequency networks have low coverage area that's why for many regions jio network changes its frequency band automatically to lower frequency bands for better coverage due to which your call drops. To fix this you need to lock your network 4g band but most of the roms doesn't support band locking.
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Hi,Jio volte calls work in all 3 bands. 850 band is used for volte call as first preference .if 850 band coverage not available or phone not supporting 850,volte traffic happens through 1800,2300 respectively.just for your info.
rijujeevan said:
Hi,Jio volte calls work in all 3 bands. 850 band is used for volte call as first preference .if 850 band coverage not available or phone not supporting 850,volte traffic happens through 1800,2300 respectively.just for your info.
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Well maybe its true but in my experience whenever my network band changes my VoLTE sign disappears and doesn't came back untill comes back to higher frequency network again
rijujeevan said:
Hi,Jio volte calls work in all 3 bands. 850 band is used for volte call as first preference .if 850 band coverage not available or phone not supporting 850,volte traffic happens through 1800,2300 respectively.just for your info.
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Well maybe it's true but whenever my phones network changes to lower frequency VoLTE sign disappears and comes back when it goes to higher frequency maybe then thats roms problem
rohansalunkhe71 said:
Well maybe it's true but whenever my phones network changes to lower frequency VoLTE sign disappears and comes back when it goes to higher frequency maybe then thats roms problem
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May be it's related to modem or something..Being a Jio nw engineer myself ,above mentioned details are true.
Lock your LTE network du b5 and b7 works for mi
All Custom ROM's have Issue with VoLTE..
You can't do anything.. Chill & Enjoy..