How to set q24pl002 band 850/1900?

How to set q24pl002 band 850/1900?
ATI dispay 900E 1800,Can be set to 850/1900 MHZ?

Hi,

AT+WMBS command can be used to set the GSM band.

AT+WMBS=4 can be used to set the band to 850/1900 MHZ.For more details,refer to the AT command guide.

Thanks.