Volte settings missing on S21

[PrashantJoseph]

Noticed 2 options missing on my S21 having 2 sims, 1 Bsnl and 2 Airtel.

Option "use mobile data during calls" is not available under "Mobile Networks".

Also, 2nd sim Airtel does not show Volte Calls option under Mobile Networks

I have tried resetting network settings, tried airplane mode toggling, tried reboot, tried removing sim and putting it back, no changes.

Is there anything else i can try

[Integrationofmind]

You need to ask your carrier for volte. And your 2 nd option is renamed as data switching and back up calling.

[PrashantJoseph]

Noticed some strange behavior, not sure it is phone related or sim or network

On S21, i put Bsnl as 1 and Airtel as 2nd sim. Volte calls option shows only for Bsnl but Bsnl does not show any volte in the status bar. Tried swapping sim's, only Bsnl continues to show in settings for toggling volte.

Moved Airtel sim to a Samsung J6 phone as 1st sim and it shows Volte Calls setting.

On S21, replaced Airtel with Jio sim and it shows Volte options in settings for both sims. Jio seems to have additional option VoNR if 5g is used.

Does this mean that Bsnl and Airtel have a tussel and some sort of conflict. I moved to Bsnl due to signal issues, many a times it shows Emergency Calls only. This Bsnl sim also at times shows Emergency Calls.

Is there some problem with the phone.

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern, we would request you to kindly perform the following steps to resolve your issues.

● Check Settings: If mobile internet is not working during the call, then check settings 'Use internet during call', Please follow the below steps to enable 'Use internet during call': Settings> Mobile Networks> Use internet during call> Enable it, if disabled.

● If the mobile internet is not working during a call, then restart your device. Restart your device then check again.
If still internet not working not working, then follow the next steps.

● Check Mobile Network: Settings>Connections> Mobile networks> Network mode> Step1: Select 5G/LTE/3G/2G (auto connect) LTE/3G/2G (auto connect) or 3G/2G (auto connect).

● Check Network Operator: Settings> Connections> Mobile networks> Network operators> Select automatically.

● Check Data Roaming: Settings> Connections> Mobile networks> Data roaming to enable it, if disabled.

● Check another network operator SIM: If the issue has not been resolved, then get in touch with the network operator and try to check with another network operator SIM.
Note: kindly contact your network service provider once to make sure there is no issue from their end.

● Update device software (If available): Settings > Software update > Download and install > Checking for software update > Software update available > Download > Downloading updates > Install now.

● You can reset your device by following the steps.
1. Kindly create a data backup of your device via the SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
2. Remember the Google password before resetting the device because it is required during initial setup.
3. If you do not remember then advise to reset (Forgot password) his/her Google account.

Path: Settings> General Management.>Reset>Temporary cloud backup or External storage backup>After backup tab on Factory data reset to reset your device to its factory default settings.
This will erase all data, including files and downloaded apps.

In case the issue still occurs, kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/

Warm Regards,
Samsung Customer Support

[PrashantJoseph]

I had few months back a factory reset for another issue.

"Use internet during calls" option itself is not available.

Device was restarted multiple times.
Data roaming is enabled.
Tried switching 5g/lte to lte/3g.
Device software is up to date.

Read about some volte issues with recent updates.

[PrashantJoseph]

Bsnl and Jio

[PrashantJoseph]

Bsnl plus Airtel