Each time I am connected to a phone call or using FaceTime. My iMessage doesn't seem to work, It goes trough as SMS and not iMessage. Recipient would respond back with an iMessage, I reply with a couple text then iMessage would work. Go to a different convo and same thing.
I am currently running the latest iOS which is 14.2.1 on my iPhone 12 Pro Max with 5G enabled.
iPhone 12 Pro Max, iOS 14
Hello markesc0,
Welcome to Apple Support Communities. We understand being unable to send iMessage while being on a phone call, and we'd be happy to clear things up.
Please go to: Settings > Cellular > Cellular Data Options > Voice & Data > enable LTE.
You can also, check with your carrier if you can use cellular data while being on a call or not.
Please check out this helpful link:
About the LTE options on your iPhone
We hope this information is useful. Kind regards.
iMessage doesn't work while on the phone or FaceTime Video/Audio
