DCS Numérique English http://en.wikipedia.org/wiki/Squelch English squelch English squelch Squelch squelch DCS English English English English English English DCS Numérique squelch Squelch Squelch Squelch Squelch DCS Numérique English Squelch English Squelched http://en.wikipedia.org/wiki/Squelch#DCS.) Squelch Carrier Operated Squelch Squelch Squelched