Calling not working in LTE - Asus ZenFone Max Pro M1 Questions & Answers

So I use my sim on roaming and I have been facing this problem that my calls only work when I set mobile network to WCDMA or lower which hence reduces my data speed coz it's 3g. What to do?

4G (LTE) services is a data-only service, and does not support voice (unless it is voice converted to 4G data or VoLTE), hence whenever you're dialling or receiving a call network drops from 4G to 3G. Happens to me all the time on roaming, sometimes even on home network with poor VoLTE connectivity. Nothing to worry about.

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Rogers Canada 3G Network help

Just picked up a Hermes 8525 off of ebay.
While upgrading to the latest WM 6.1 roms available - I have been picking up the 3G network in my area here in Montreal.
I do not have a 3G sim card, and do not plan on using any of the data features either. I pretty much just use it as a regular phone - surf via wifi. Am I actually on the 3G network ??
I also do not have a 3G plan with Rogers. Is there any benefit to 3G if just being used as a regular wireless phone ??
If not being used for any data features, etc - will there be an additional charge applied ??
Should I just force the phone to GSM network only - instead of auto ??
Any feedback greatly appreciated
Have a good one
3G is data and voice. So, even if your not using the data plan your voice connection still auto connects to 3G network or Edge.
You wouldnt get charge for data as long as your 3G data connection is disabled.
You could force it to use a specific band (i.e. 850/1900 mhz) but you might have a bad connection on some areas since the phone auto connects to stronger signal. Hence better (sometimes) voice quality.

[Q] T-mobile Data turning off during a call

I noticed when i am on a phone call, the E or H(aka data tmobile data) turns off while i am in the call and disappears. Then comes back after i end the call. Does anyone else notice this or know how to make it so it stays on even during a call? Also, when wifi is connected the data service turns off?
First off this is normal when your in a 3bars or less 3G/H area. Your phone will switch 2G while on a call if the 3G signal gets low but it won't switch back until the call is ended. Also on 2G/E you can only do one at time, voice or data. T-Mobile's 2G network is stronger than their current 3G network also.
So if your on a call and the H disappears, this means your phone has switch to 2G/E because your 3G/H signal was low. You won't see E on a call since that would be data and 2G can only do one at a time.
If you want to force 3G/H then goto settings, wireless and networks, mobile networks(I believe) and select WCDMA only under network mode. Please note that if you go into a non 3G/H area you will loose complete signal and your phone won't switch to 2g.
and yes wifi disables mobile data.
Good luck.
ram130 said:
First off this is normal when your in a 3bars or less 3G/H area. Your phone will switch 2G while on a call if the 3G signal gets low but it won't switch back until the call is ended. Also on 2G/E you can only do one at time, voice or data. T-Mobile's 2G network is stronger than their current 3G network also.
So if your on a call and the H disappears, this means your phone has switch to 2G/E because your 3G/H signal was low. You won't see E on a call since that would be data and 2G can only do one at a time.
If you want to force 3G/H then goto settings, wireless and networks, mobile networks(I believe) and select WCDMA only under network mode. Please note that if you go into a non 3G/H area you will loose complete signal and your phone won't switch to 2g.
and yes wifi disables mobile data.
Good luck.
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Okay that makes sense because i only get edge/2g service in my house. Thanks for the response!

Fixed. National roaming not working. Norway

Edit: writing it down helped me understand that i actually never activated "2g or 3g or 4g" in elixir2>information>telephony>turn 4g on.
So this was how i got onecall to work properly, in case there's other Norwegians with the same problem.
___________
In areas where my provider doesn't have reception it uses another provider. My phone then shows that it's roaming and that it has data connection, but in reality it doesn't, i can't access the net. Roaming is activated, the apn of my provider is setup correctly. My provider uses 2g and 3g, the other provider uses 4g as well. When the issue appears it doesn't help to turn on and off airplane mode, doesn't help to turn off and on obile data or to reboot the phone. The problem appears no matter if I choose the other providers network manually or let the phone do it automatically. I tried every possible setting in elixir2 regarding "preferred connection speed - 2g only, 3g onlyn 2g or 3g or 4g and so on.
Anyone with a similar issue on this or a different phone and a possible solution?

1x radio will not make calls on Verizon MVNO

As you can see, I have two radios, one LTE and one 1x, same as on my last few phones. When I make a call though, the LTE is not available for data services, and 1x doesn't even show as a data option when voice is active. I cannot activate advanced calling because I'm not technically with Verizon. Is the problem that the calls are defaulting to the LTE radio? I've tried disabling volte in the network settings and it doesn't do anything.
Suggestions?

Network signal for Mobile internet shows 'H'. Changes to 'G' while making calls.

Hii,
I looked around and couldn't find any similar thread.
My network provider is Aircel in Chennai, India. MotoG4 Plus. Android 6.0.1
Most of the time my phone displays 'H' next to the network signal bar. Mobile internet works perfectly fine. As soon I make a call, the 'H' changes to 'G' and voice quality is pretty bad. Isn't it suppose to be 3G (H) for the calls too? Sometimes an '!' mark also appears at the end of the mobile signal. Not sure how to fix this. Voice quality is bad.
Any help?
Networks in India, aside from the major ones (Airtel, BSNL, Vodafone etc), usually have deals with the major ones for the 3g spectrum. Which means, the 3g bandwidth you are using in your telecom circle is of an another network's... However, the 2g spectrum is still your operator's spectrum & not a different one. Therefore, if you call, the operator forcefully switches your network from 3g to 2g. If you want calling in 3g, use a network that has bought the spectrum in your circle (usually Airtel, BSNL & Vodafone).
A similar thing exists with "VoLTE". LTE in India right now (with the exception of Jio) falls back onto 3g/2g for calling, while using 4g fr data. Whereas, VoLTE uses LTE for calling too.
The exclamation mark indicates that the phone can't connect to Google servers to verify whether your Internet is active.
aditya.upadhyaya said:
Networks in India, aside from the major ones (Airtel, BSNL, Vodafone etc), usually have deals with the major ones for the 3g spectrum. Which means, the 3g bandwidth you are using in your telecom circle is of an another network's... However, the 2g spectrum is still your operator's spectrum & not a different one. Therefore, if you call, the operator forcefully switches your network from 3g to 2g. If you want calling in 3g, use a network that has bought the spectrum in your circle (usually Airtel, BSNL & Vodafone).
A similar thing exists with "VoLTE". LTE in India right now (with the exception of Jio) falls back onto 3g/2g for calling, while using 4g fr data. Whereas, VoLTE uses LTE for calling too.
The exclamation mark indicates that the phone can't connect to Google servers to verify whether your Internet is active.
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Thanks a lot Aditya for your reply. :good::good::good:

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