Save AT configuration on GL8200

We configured the GL8200 using the AT command set.
For example:
ATS0=1
AT+CBST=0,0,1
AT+CSNS=4

According to the AT command interface guide the AT&W command does not save those configurations. But we need to get a data connection to work in an unattended way.
Is there another command or another option to configure the GL8200?