Modem User Manual

Chapter 3 – Fax Class 2 Commands
Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C) 83
Copy Quality Checking
Class 2.1 +FCQ
Write syntax: +FCQ=<rq>,<tq>
Values: 0, 1 for <rq>
0 for <tq>
Default: 1 for <rq>
0 for <tq>
Other values for <rq> and <tq> are not supported in the Multi-Tech implementation.
The +FCQ parameter controls copy quality checking and correction by a facsimile
modem. The <rq> subparameter controls copy quality checking and correction of
data received from the remote station and delivered to the local host; the <tq>
subparameter controls copy quality checking and correction of image data received
from the local host and sent to the remote station.
The modem reports on Received Copy Quality to the host in the page status report,
+FPS:<ppr>,<lc>,<blc>,<cblc>,<lbc>, and records it in the +FPS parameter.
+FCQ=0,0 modem receive copy quality checking is disabled; the modem will
generate copy quality OK (MCF) responses to complete pages, and set
+FPS=1. modem transmit copy quality checking is disabled; the host is
responsible for T.4 or T.6 compliance.
+FCQ=1,0 modem receive copy quality checking is enabled; the modem will
determine the recommended Post Page Message, and store it into the
+FPS parameter. modem transmit copy quality checking is disabled; the
host is responsible for T.4 or T.6 compliance.
Class 2 +FCQ
Write syntax: +FCQ=<value> Valid values: 0, 1
Default value: 0
This parameter controls copy quality checking by the receiving facsimile modem.
The modem will generate a page transfer report, indicated with the
+FPTS=<ppr>,<lc>,<blc>,<cblc> response and posted in the +FPTS parameter. The
+FCQ parameter setting also conditions the generation of bad line count <blc> and
consecutive bad line count <cblc> subparameters.
+FCQ=0 The modem does no copy quality checking. The modem will generate
copy quality OK (MCF) responses to complete pages, and set +FPS=1.
+FCQ=1 The modem can check 1-D Phase C data. The host must check copy
quality for 2-D Phase C data. On new -V92 modems, +FCQ=1 means it
will also check 2-D Phase C data.