56K Softmodem
Command Reference
- 40
Table 3-67: Valid <max_history_tx> and <max_history_rx> Values
Table 3-68: +DS44 Extended Syntax Commands
+EB=<break_selection>,<timed>,<default_length>—Break Handling In Error Con-
trol Operation
Use this command to set the modem behavior when a BREAK is received. The
<break_selection> parameter sets the type of break sent to the remote DCE when
a break is received from the local DTE. The <timed> parameter sets whether the
V.42 L-SIGNAL sends the break length. The <default_length> parameter sets the
length of the break sent to the local DTE when the modem receives a break from
the remote DTE that does not have a defined break length. The <default_length>
is defined in milliseconds and has a default value of 30 (30 ms).
Result codes:
OK
if <break_selection> = 0—3 and <timed> = 0, 1 and <default_length> = 0—
255 in increments of 10.
ERROR
if <break_selection> does not equal 0—3 or <timed> does not equal 0, 1
or <default_length> does not equal 0—255 in increments of 10.
Table 3-69: Valid <break_selection> Values
Note:
* ITU-T recommendation V.250 (05/98) standardized this command. The standard version includes
two additional parameters that are not included in the 56K Softmodem command set. For more infor-
Value Meaning
6144
Default <max_history_tx> and <max_history_rx> value.
1024, 2048, 4096, 1536, 3072, 6144
Valid maximum transmit and receive history buffer sizes.
Command Description
+DS44=<direction>,<0>,<0><max_code_
words_tx>,<max_code_words_rx>,<max_
string_tx>,<max_string_tx>,<max_sting_rx>,
<max_history_tx>,<max_history_rx>
Configures modem V.44 compression method.
+DS44?
Displays the current V.44 compression configuration.
+DS44=?
Displays the supported V.44 compression setting.
Value Meaning
0 Ignore
break
(default).
1 Non
expedited,
nondestructive.
2 Expedited,
nondestructive.
3 Expedited,
destructive.