Synxcom SM9234D, User Manual

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AT Commands
Page 186
This response reports the received transmit station ID string, if any. This message
is generated in execution of Originate, Answer, +FDT, or +FDR commands.
+FDTC: - Report the Polled Station Capabilities
Syntax
+FDTC: “< string>” Polled Station Capabilities
If the answerer has a document to poll, it would be communicated to the originator
in bit 9 of the DIS frame. The originating station may elect to transmit a fax, and
later, send SIG and DTC frames to pick up the polled document. The answering
station would report the incoming DTC frame via the +FDTC: response message
after command mode is canceled with the AT+FDR command.
+FPOLL - Indicate Polling Request
Syntax +FPOLL:
This message is sent to the DTE if the received DIS message indicates that the
remote station has a document to poll (by bit 9 in the DIS) and polling has been
enabled with the AT+FSPL command. The DTE may then decide to receive rather
than transmit.
Service Class 2 Parameters
All Service Class 2 parameters can be read, written, and tested for range of legal
values by the DCE. The general syntax is described earlier in this appendix.
Group 3 FAX devices negotiate session parameters in DIS, DCS, and DTC
frames. The following parameters are provided to condition the facsimile DCE for
the capabilities it will offer and to report the session settings negotiated.
The three primary T.30 session parameters are +FDCC, +FDIS, and +FDCS.
They are compound parameters, using values listed in Table A-23.
+FDCC - DCE Capabilities Parameters
Write syntax: +FDCC=VR,BR,WD,LN,DF,ED,BF,ST
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)
+FDCC allows the DTE to sense and constrain the capabilities of the facsimile DCE from
the choices defined in CCITT T.30 Table 2. When +FDCC is modified by the DTE, the
DCE FDCC into +FDIS.
+FDIS - Current Sessions Capabilities Parameters
Write syntax: +FDIS=VR,BR,WD,LN,DF,EC,BF,ST