Which countries block Wi-Fi Calling?
Which countries block Wi-Fi Calling? You can't use Wi-Fi Calling in China, Cuba, North Korea, India, Iran, Israel, Pakistan, Saudi Arabia, Sudan, Syria, Turkey, United Arab Emirates, or Vietnam. If your phone has a setting to keep Wi-Fi on while in sleep mode, we recommend you turn it on so you don't miss calls.
What happens when someone texts you when you have no service?
The sender sends the message to their carrier, where it is stored and then forwarded to the recipient's carrier. If the recipient's carrier cannot be reached, the message is retried for a period of time - hours at least and perhaps days.
Does Wi-Fi calling automatically switch to cellular?
When Wi-Fi Calling is available, “Wi-Fi” is displayed after your carrier name in the status bar, and all your calls go through Wi-Fi. Note: If the Wi-Fi connection is lost when you make calls, calls switch automatically to your carrier's cellular network using VoLTE (Voice over LTE), if available and turned on.