WSFJ375

I also receive 462.700 in Longwood very well in Sanford. I can't find the tone to respond. I'm setup at 462.700 up 5mhz. The repeater isn't in the repeater book. I'm new to GMRS and assume it works something like amateur radio. In amateur radio on some repeaters there is a verbal announcement with the tone frequency announced. I gather this is an open repeater once we can get the tone.