If you could send sms messages before than there probably be a temporally problem with the carrier so try again later.
If you never could send SMS messages contact your carrier/provider or check the website of the carrier how to enable SMS settings on your phone.
If you could send sms messages before than there probably be a temporally problem with the carrier so try again later.
If you never could send SMS messages contact your carrier/provider or check the website of the carrier how to enable SMS settings on your phone.