US Robotics 56K USB Modem User Manual page 38

\R<value>—Ring Indicator Signal Off After Answer
This command is supported to ensure backward compatibility with communications software that issues
the \R0 command. The \R1 version of this command is not supported.
Result codes:
• OK if <value> = 0.
ERROR if <value> ≠ 0.
•
Table 46. \R<value> Commands
Command
\R0 Ring indicator signal is off after the telephone call is answered.
\T<value>—Inactivity Timer
Use this command to specify the delay time used by the inactivity timer. The delay time is the length of time
in minutes that the modem waits during periods of inactivity before disconnecting. Periods of inactivity are
defined by no data being sent or received by the DCE. To disable the inactivity timer, use the T0 command.
The delay time may also be specified in register S30 (S30—Inactivity Timer on page 101).
Result codes:
• OK if <value> = 0—255.
ERROR if <value> ≠ 0—255.
•
Table 47. \T<value> Commands
Command
\T0 Inactivity timer disabled (default).
\T1—\T255 Specifies the length of time in minutes that the modem will wait before disconnecting
when no data is sent or received.
\V<value>—Protocol Result Code
Use this command to enable or disable protocol result codes (see Result Code Summary on page 107).
Result codes:
• OK if <value> = 0—2.
ERROR if <value> ≠ 0—2.
•
Table 48. \V<value> Commands
Command
\V0 Disables protocol result code appended to DCE speed.
\V1 Enables protocol result code appended to DCE speed (default).
\V2 Enables protocol result code appended to DCE speed (same as \V1).
Function
Function
Function
56K USB Modem
User Guide
Command Reference - 32