I am using a RS232 terminal call Termite. https://www.compuphase.com/software_termite.htm I need to input Ctrl-Q (017 or XON) on the command line. Every time I type Ctrl-Q, however, it give me a "ding" sound and nothing echos out. I suppose the input failed somehow.

Can someone explain what is going on and how to put Ctrl-Q into Termite?