Checking Cable Signals - &T19
The &T19 command was created to provide a way for software to test the capabilities
of the cable between the DTE and the modem, instead of assuming that the
RTS/CTS lines (used for hardware local flow control) were supported in a
cable. This command is implemented in Hayes Smartcom products; when setting
up the modem, one of its initial operations is issuing this command. See
&T19.
Click here to return to the Contents page.