VoLTE Feature Doesn't Work on My OPPO A54
Your OPPO A54 supports VoLTE calls. You can use this to make or receive high-quality calls. If you're trying out VoLTE on your OPPO A54 and it doesn't work or unable to make calls using it, just read on.
Applicable to: OPPO A54.
VoLTE Not Working on OPPO A54.
You can try the simple measures below if you're VoLTE is not working.
If you're using JIO as your SIM and you have the Jio4GVoice or JioCall application, you may need to uninstall them on your phone.
If your VoLTE enabled SIM card is in SIM slot 2, change it to the first SIM slot because it works best on it.
VoLTE only works with 4G network. If you're Preferred network type is not 4G, you may need to change it.
To change it: Go to [Settings] > choose the SIM card where you enabled the VoLTE > [Preferred network type] > Choose [4G/3G/2G/Auto].
When turning on the VoLTE on your OPPO A54, you might see a message prompt that says, "Cannot Activate LTE Calls. To enable LTE Calls on this account, contact your carrier." It can happen with some account types, including business lines, and on some carriers. If this happened on your end, you need to call your carrier provider to provide further assistance regarding this matter.
If a message prompt says to "Insert a new SIM card," you may need to change it, especially if your SIM is old or a micro-SIM card that's cut down to the size of a nano-SIM card. We recommend you visit your nearest carrier provider for assistance.
If you're using your VoLTE and the call suddenly or frequently drops, or the call quality is at the poor range, try to turn off your VoLTE.
While your VoLTE is off and the quality improves, get assistance from your carrier provider.
Note: The VoLTE feature varies per country/ region. It may also differ on your carrier provider.
Related article: