COURIER HIGH SPEED MODEMS
Dial Options
0−9 Digits
&Flash
:Wait for dial tone
>(Greater Than) separator
<Pause
=(Equal Sign) separator
P  | Pulse  | 
T  | Tone  | 
.  | (Period) separator  | 
-(Minus) separator
Result Codes
∙SFI (Call failure indication) with optional parameters:
-CFAB (Abort call)
-CFCB (Local modem busy)
-CFET (Engaged tone)
-CFFC (Forbidden call)
-CFNS (Number not stored)
-CFNT (Answer tone not detected)
∙CFRT (Ring tone)
∙CNX (Connect)
∙LS (List of numbers)
∙LSF (List of forbidden numbers)
∙LSN (List of stored numbers)
∙INC (Incoming call)
∙INV (Invalid) with optional parameters:
-INVMS (Message syntax error)
-INVCU (Command Unknown )
-INVPS (Parameter syntax error )
-INVPV (Parameter value error )
∙VAL (Valid)