D. CCITT V.25 bis Dialing Commands and ResponseD-53830-A2-GB91-20 November 1996Call Answer CommandsCall Answer commands disable or enable the modem’s AutoAnswerfunction. These commands are issued from the DTE. Call Answercommands include Incoming Call (INC), Disregard Incoming Call(DIC) and Connect Incoming Call (CIC).Incoming Call (INC)The INC response informs the DTE that the modem has detected a ringtone. At this point, the DTE can issue the DIC command to disable themodem from answering the call. INC is similar to the AT result codeRING.Disregard Incoming Call (DIC)The DIC command prevents the modem from answering an incomingcall. This command is only valid once the DTE receives an incomingcall (INC) response from the modem. A DIC must be issued within 5seconds after receiving an INC.The DIC command format is DIC.If DIC is issued within 5 seconds, the modem sends the VAL responseto the DTE. If DIC is issued after 5 seconds, INV is returned.Connect Incoming Call (CIC)The CIC command forces the modem to cancel any DIC commandsand answer an incoming call. This command is only valid when theDTE issues a DIC command. CIC must be issued within 10 secondsafter sending a DIC. CIC is similar to the ATA command.The CIC command format is CIC.If CIC is issued within 10 seconds, the modem sends the VAL responseto the DTE. If CIC is issued after 10 seconds, INV is returned.