Bluetooth calling or replaying messages

what you guys prefer, both or one those. you can’t have it all, i really like the Bluetooth calling, but in certain circumstances replaying messages is the best and more handling, peoples are using more messages than calling right now. my smartphone is terrible switching between WIFI calling and network, i don’t know if is the phone issues or network data signal from the carrier and depend on your location in/out or close to a WIFI router its a pain on the neck.