Multi-Tech Systems MT2456SMI22 - Manual (Page 15)

Chapter 4 - V.22bis Commands
Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide 15
V.22bis DTE/DCE-Modem Interface
commands
The parameters defined in this section control the operation of the interface between the DTE/DCE and modem.
E Command Echo
The modem enables or disables the echo of characters to the DTE. The valid parameter value is written to S14 bit 1 .
Syntax E<value>
Defined Values
<value> Decimal number corresponding to the option.
0 Disables command echo.
1 Enables command echo. (Default)
Result Codes
OK <value> = 0 or 1
ERROR Otherwise
Q Quiet Result Codes Control
The command enables or disables the sending of result codes to the DTE. The parameter value, if valid, is written to
S14 bit 2.
Syntax Q<value>
Defined Values
<value> Decimal number corresponding to the option.
0 Enables result codes to the DTE. (Default)
1 Disables result codes to the DTE.
Result Codes
OK <value>= 0 or 1
ERROR Otherwise
V Result Code Form
This command selects the sending of short-form or long-form result codes to the DTE. The parameter, if valid, is
written to S14 bit 3.
Syntax V<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Enables short-form (terse) result codes. Line feed is not issued before a short-form result code.
1 Enables long-form (verbose) result codes. (Default)
Result Codes
OK <value>= 0 or 1
ERROR Otherwise
W Connect Message Control
This command, in conjunction with S95 bits 0, 2, and 3, (bits 2 and 3 can be written directly by the host), control the
format of CONNECT messages. The actual result code messages reported reflect the W command setting and the
S95 bit settings
.
The W parameter value, if valid, is written to S31 bits 2 and 3.
Syntax W<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Upon connection, the modem reports only the DTE speed (e.g., CONNECT 19200). Subsequent responses are
disabled. (Default)
1 Upon connection, the modem reports the modulation, line speed, the error correction protocol, and the DTE
speed, respectively. Subsequent responses are disabled.
2 Upon connection, the modem reports the DCE speed (e.g., CONNECT 2400). Subsequent responses are
disabled.
Result Codes OK <value> = 0, 1, or 2
ERROR Otherwise