Samsung Galaxy Watch7

When flight mode is turned on, all wireless smartwatch connections are turned off, including the mobile network connection.

Solution: Turn flight mode on or off

If your smartwatch is overloaded, you won't be able to make any calls. It may help restarting it.

Solution: Restart your smartwatch

The network coverage may differ from area to area. In certain areas it may so low it's not possible to make calls.

Solution: Try making a call later when you're in an area with better network coverage.

If there's a general problem making phone calls in a certain area, it may be be due to a temporary network error.

Solution: Try making a call later or when you're in another area.

If you're having problems calling a specific number, the error might be at the receiving end.

Solution: Try making a call to another number.

If you try to make calls to or from foreign countries, roaming needs to be activated in your rate plan.

Solution: Contact customer services to check the possibility of activating roaming in your rate plan.

You'll be notified if your number has been suspended when you try to make a call.

Solution: Contact customer services to have your number reactivated.