The state of the modem control-register value.
type TwclModemStatus = ( msCtsOn, msDsrOn, msRingOn, msRlsdOn );
The TwclModemStatus type exposes the following members.
The CTS (clear-to-send) signal is on.
The DSR (data-set-ready) signal is on.
The ring indicator signal is on.
The RLSD (receive-line-signal-detect) signal is on.