Silicon Laboratories SI2494/39, SI2493/57/34/15/04 manual Result Code Meaning Remarks, Connect

AN93

Table 143 lists the definitions of result codes typically expected in an SIA session.

Table 143. Definitions of Result Codes Typically Expected in an SIA Session

Result Code	Meaning	Remarks
OK	Ready for next command	When it comes as a response to the +F2 command,
	(or ACK)	“OK” means ACK
CONNECT	Physical handshake is completed.	In SIA FSK mode, CONNECT means that the
		modem is in the data passing state ready to receive
		or transmit data.
		Note: there is an extra space character between the
		letter T and the carriage return delimiter.
		In V.32bis mode, CONNECT is followed by the DCE
		connection speed: e.g., CONNECT 14400
RING	Incoming ring	Modem should answer the incoming call; the host
		can command this with ATA.
NO CARRIER		Connection is terminated
ERROR	Invalid AT command	As a response to the +F2 command, “ERROR”
	(or NACK)	means NACK; otherwise, it means invalid com-
		mand.
BUSY		Dialed number is Busy.

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