FJ Software

hi
i am trying to set sms mode in Hyperterminal with this at command
at+cmgf=1
but there is an error
+cms error : 303

(303 Operation not supported )
only at+cmgf=0 is supported

why?

SonyEricsson-Phones does support only the PDU-Mode for sending messages (you can read this also in the developerguidelines which i linked to you)