Synxcom SM9234D, Руководство пользователя

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AT Commands
Page 179
=8+ppm Post Page Message (ppm code)
Table A-25. T.30 Post Page Response Messages
ppr Code Mnemonic Description
1 MCF Page good
2 RTN Page bad; retrain requested
3 RTP Page good; retrain requested
4 PIN Page bad; interrupt requested
5 PIP Page good; interrupt requested
+FDR - Begin or Continue Phase C Receive Data
Syntax
+FDR <CR>
Default value
3 seconds in some places
The +FDR command initiates transition to Phase C data reception. This can occur
after answering, dialing, a document is received, or a page is received.
The DCE reports the negotiated T.30 parameters, with the remote ID information
if available. When the DCE is ready to commence data transfer, it issues a
CONNECT response code. If the DCE cannot resume data transfer because there
is no more data, it responds OK. When the DTE is ready to accept data, it issues
an <DC2> character (018) to the DCE.
If the DTE issues an <XOFF> character to the DCE for flow control, the DCE
signals the DTE when its buffers are empty by sending a <DLE><DC2>
(<016><018>) character pair.
When the DCE delivers the last byte of a page, the DCE reports the Page Transfer
Status via the +FPTS:<ppr> response (Table A-25).
After a Page Transfer Status Report, the DCE reports the post page message from
the remote facsimile station via the +FET:<ppm> response (Table A-24) which
signals the intentions of the remote station.
The DCE holds the post page response message to the remote facsimile station
(MCF, etc.), represented in the +FPTS parameter until the next +FDR command.
The DTE may modify the +FPTS parameter before issuing the +FDR command
which releases that message. The DTE must issue a +FDR command to release
Post Page Messages.
Initiate Document Reception
The +FDR command may be issued in Phase B after an answer command, or in
Phase B after a previous document.