How I do a telnet test in a specific port? (make a telnet monitoring).And make this test be displayed in the web interface.
TCP port monitor may be the best bet for this. (http://www.solarwinds.com/NetPerfMon/SolarWinds/wwhelp/wwhimpl/common/html/wwhelp.htm#context=SolarWinds&file=OrionAPMPH…)