... mode parameters) AT+CSMP=? # +CSDH=? (Show text mode parameters) AT+CSDH=? +CSDH: (0,1) # +CMGL=? (List messages (text)) AT+CMGL=? +CMGL: ("REC UNREAD","ALL") # +CMGR=? (Read message (text)) AT+CMGR=? # +CNMA=? (New message acknowledgement to ME/TA (text)) AT+CNMA=? # +CMGS=? (Send message (text)) ...