(Basic) Result Codes

#   Verbose        Meaning                                                                                   


0   OK             Acknowledges entry into either idle state or Online Command State after successful        


                   execution of a command line, Hayes Patented Escape Sequence with Guard Time, or            


                   &quotDTR-escape&quot. There may be times that the modem does not execute a command but     


                   returns OK anyway. This provides compatibility with some communication software.           



1   CONNECT        Connection established at unstated line and DTE speeds if the X0 command is in effect; a  


                   connection is established at a line and DTE speed of 0 to 300 bits/s if X0 is not in       


                   effect.                                                                                    



2   RING           Ringing voltage on and off is detected.                                                   



3   NO CARRIER     Failure to connect or loss of carrier.                                                    



4   ERROR          Command not recognized.                                                                   


                   Command line too long.                                                                    


                   Response to I command, incorrect check sum.                                               


                   Command issued at 110 or 300 bits/s and a synchronous mode is in effect.                  



5   CONNECT 1200   Connection is established and the DTE should change port speed to 1200 bits/s.            



6   NO DIALTONE    Dial tone detection was attempted but not found within the time-out period.               


                   Blacklisting may also cause the modem to detect no dial tone.                             



7   BUSY           A busy signal is detected.                                                                



8   NO ANSWER      The @ Wait For Quiet Answer dial modifier was executed, and 5 s of silence was not        


                   detected.                                                                                  


10  CONNECT 2400   Connection established. DTE should change port speed to 2400 bits/s.