US Robotics 56K USB Modem User Manual page 47

ERROR if <break_selection> ≠ 0—3 or <timed> ≠ 0 or <default_length> ≠ 10—90 in increments of 10.
•
Table 77. Valid break_selection Values
Value
0 Ignore break (default).
1 Nonexpedited, nondestructive.
2 Expedited, nondestructive.
3 Expedited, destructive.
Table 78. +EB Extended Syntax Commands
Command
+EB=<break selection>,<timed>, <default
length>
+EB?
+EB=?
+EFCS=<value>—32-bit Frame Check Sequence
Use this command to control the 32-bit frame check sequence option in V.42. The only valid combination is
+EFCS=0, 16 bit frame check sequence.
Result codes:
• OK if <value> = 0.
ERROR if <value> ≠ 0.
•
Table 79. +EFCS Extended Syntax Commands
Command
+EFCS=0 Sets the 32-bit frame check sequence to a 16-bit frame check sequence.
+EFCS? Displays the current 32-bit frame check sequence.
+EFCS=? Displays the support parameters for the 32-bit frame check sequence.
+ER=<value>—Error Control Reporting
Use this command to enable or disable the error control report. If the compression report is enabled, the
+ER:<type> intermediate result code reports the current DCE-DCE error control type. It is issued after the
determination of the error control protocol and before the final result code (e.g., CONNECT). Specifically,
the +ER intermediate result code is issued after the modulation report (+MCR and +MRR) and before the
data compression report (+DR).
The compression report format is shown in Table 81.
Result codes:
• OK if <value> = 0, 1.
ERROR if <value> ≠ 0, 1.
•
Table 80. +ER Control Reporting Commands
Command
+ER=0 Disables the error control report (default).
+ER=1 Enables the error control report.
Meaning
Function
Description
Sets the modem behavior when a break is
received.
Displays the current break selection settings.
Displays the supported break selection settings.
Description
56K USB Modem
User Guide
Command Reference - 41