Check that your phone is displaying adequate signal strength, and make sure you're keying in the full phone number when you send the message. Some operators require country and area codes. If you have problems sending or receiving SMS on your phone, some of your phone settings are probably incorrect. The settings are different for different operators, and we recommend that you contact your operator for the correct SMS settings.
M600i
There is no additional information for the M600i about this subject.
We appreciate your feedback; it will help us improve this Web site.Thank you for your feedback. Enjoy your phone!Thank you for your feedback. Look below for more information.