ABORT 	'BUSY'
ABORT	'NO CARRIER'
ABORT	'ERROR'
ABORT	'NO DIALTONE'
ABORT	'NO ANSWER'
''	AT
OK	AT+CMEE=2
OK	AT+CGSN
OK	AT+CICCID
OK	AT+CSQF
OK	AT+CREG?
OK	AT+CPIN?
OK 	AT+CBST=71,0,1
OK	ATDT00881600005170
CONNECT \d\c