i 

iAT

pCOMPRESS

pPROTOCOL

pCARRIER

qVOICE

qNO DIAL

qRING

iRING RESP

iRRING

iDIAL

iRINGING

qERROR

qMODEM IN USE

fBUSY

fNO ANSWER

fNO CARRIER

cCONNECT

-more to come

ATH0


fi+++fifi




ATE1 V1





ATDP 




ATDT