ZyXEL Communications U-336R/RE manual Response, Value, Function and Description, Fax Operation

Response	Value	Function and Description
+FNS:		Report NSS (non-standard Setup) frame.
"NSS FIF
string"
+FPI:		Report remote ID response-Polling
"CIG ID		Station ID (CIG).
string"
+FPO		Remote polling indication.
+FPS:ppr,lc,b		.30 phase C page reception response:
lc,cblc,lbc
	ppr=1	Received page good.
	ppr=2	Page bad; retrain requested.
	ppr=3	Page good; retrain requested.
	ppr=4	Page good; remote request for procedure
		interrupt accepted.
	ppr=5	Page bad; retrain requested; remote
		request for procedure interrupt accepted.
		The receiving DCE may count <lc>,
		<blc>, <cblc> and <lbc> due to DCE
		buffer overflow and report them:
		lc: line count.
		blc: bad line count
		cblc: maximum consecutive bad line
		count.
		lbc: lost byte count.
+FTC:vr,br,w		Remote fax station capabilities (DCT
d,ln,df,ec,bf,		frame information) response refer to
st		+FIS=... command for the description of
		sub-parameters.
+FTI:		Remote ID response-Transmit Station ID
"TSI ID		(TSI).
string"
+FVO		Report transition to voice.

Fax Operation 69