Zte MF212 User Manual page 18

Select "Yes", and then the edited short messages will be sent.
After sent successfully, the SMS will be saved into outbox
automatically. If send fails, it will be saved to the draft box
automatically.
Send SMS while browse the web:
When surfing the Internet, if your network supports, you can
send short messages at the same time. Click "Short Message"
button icon, enter the short message interface to send short
messages normally.
2.3.3 Operating Guide
Enter any of the InBox/OutBox/DraftBox to execute the
following functions:
18