Synxcom SM9234D, User Manual

Page: 187 / 216

AT Commands
Page 187
Valid values: See Table A-23.
Default values: 0,3,0,2,0,0,0,0 (9600 bps fax models) or 0,5,0,2,0,0,0,0 (14400 bps fax
models)
The +FDIS parameter allows the DTE to sense and constrain the capabilities used
for the current session. The DCE uses +FDIS to generate DIS or DTC messages
directly, and uses +FDIS and received DIS messages to generate DCS messages.
The DCE initializes the +FDIS parameter from the +FDCC parameter on
initialization, when +FDCC is written, and at the end of a session.
+FDCS - Current Session Results Parameters
Read syntax: +FDCS?
DCE response: +FDCS=VR,BR,WD,LN,DF,EC,BF,ST
or +FDCS=
Valid values: See Table A-23.
Default values: 0,0,0,0,0,0,0,0
The +FDCS parameter is loaded with the negotiated T.30 parameters for the
current session. A transmitting DCE generates DCS; a receiving DCE gets DCS
from the remote station. The DTE may read this parameter.
The +FDCS parameter is initialized 0,0,0,0,0,0,0,0 upon initialization and at the
beginning of a session. If the DTE issues a +FDCS? command in the initial state,
the DCE reports:
<CR><LF>0,0,0,0,0,0,0,0<CR><LF>
The contents of +FDCS are spontaneously reported during execution of +FDR or
+FDT commands by the +FDCS:VR,BR,WD,LN,BF,EC,BF,ST response using
the same compound parameter format.
Several commands and responses reference T.30 session negotiated parameters.
These are described by a set of common subparameters. These subparameters are
described in Table A-23 with notes. Optional parameter values are marked with an
*. Unspecified parameter values are reserved for future use.
The +FDCC, +FDIS, and +FDCS compound parameters use these session
parameters (On writes, unspecified subparameters are unchanged.)
The +FDIS:, +FDCS:, and +FDTC: session report responses use these
subparameters. For test response, ranges of values are reported for each
subparameter enclosed in parentheses characters. For example, a DCE response to
+FDCC=? could report:
<CRLF> (0,1), (0-5), (0-3), (0-2), (0-2), (0-2), (0), (0-7) <CRLF> (14400 fax models)
Example:
+FDIS=0,5,0,2,0,0,0,1 =
VR = 0 98 dpi vertical resolution,