In [Quick help guide to GSM 07.05 PDU mode structure], page 2 mentioned that the first octet value of 0x11 means SMS-SUBMIT, do not reject duplicates in SC, validity period not present, no status report request, no header in user data, reply path not set.

Should the correct octet value is 0x01? 0x11 is SMS-SUBMIT and with the relative Validity Period Format set.

Please correct me if I'm wrong, thank you!