Product data

USRobotics
Command Reference
S-Parameters - 98
4 Selects that the symbol rate will be less or equal to 3200 symbols
per second.
5 Selects that the symbol rate will be less or equal to 3429 symbols
per second.
Range: 0-5 Default: 5
Result Codes
The modem responds to commands from the DTE and to activity on the line by
signaling to the DTE in the form of result codes. The result codes that the modem
can send are described in Table 3-15.
Two forms of each result code are available: long-form, an English-like "verbose"
response, and short-form, a data-like numeric response (included in parentheses
following the long-form). The long-form code is preceded and terminated by the
sequence < CR> < LF>. The short-form is terminated by < CR>, only with no
preceding sequence.
If result messages are suppressed, nothing is returned to the DTE. The long-form
results codes can be modified by the OEM through the .INF file.
Table 4-2: Result Code Definitions
Code Message Meaning
+F4 +FCERROR High speed fax data (V.27, V.29, V.33, or V.17) is expected but a V.21 signal is
received.
0 OK A command line has been executed.
1 CONNECT For X command values specifying no speed reporting, the modem has connected to
the line and either the line speed is 300 bps and line speed is enabled, or the DTE
speed is 300 bps and DTE speed reporting is enabled.
2 RING An incoming ring signal is detected on the line. What qualifies as a ring signal is
determined by country-dependent parameters.
3 NO CARRIER Sent when attempting to establish a call if: Ringback is detected and later ceases but
no carrier is detected within the period of time determined by register S7, or 1. No
ringback is detected within the period of time determined by register S7. 2. Also sent
when the modem auto-disconnects due to loss of carrier. For X0, sent for the follow-
ing conditions: 1. If busy tone detection is enforced, busy or circuit busy has been
detected. 2. If dial tone detection is enforced or selected, dial tone has not been
detected.
4 ERROR Sent during an attempt to execute a command line if any of the following conditions
occur: 1. The command line contains a syntax error. 2. The modem cannot execute a
command contained in the command line, i.e., the command does not exist or is not
supported. 3. A command parameter within the command line is outside the permit-
ted range. For X0, X1, X2, and X3, this message is sent instead of DELAYED and
BLACKLISTED.
5 CONNECT 1200 The modem has connected to the line and either the line speed is 1200 bps and DCE
speed reporting is enabled, or the DTE speed is 1200 bps and DTE speed reporting
is enabled.