Ummm......nothing? Range beep (and note that beeps happen anytime the vox is used, not just on Range channel) is like clicking your mic. You cant hear your own. So theres nothing to do but listen (if whatever they have to say is worth listening to, thats debateable sometimes on Range channel) when you hear the beep. Sometimes a guy will have something malfunctioning, and the beeps get constantly repeated. There's nothing you have to do on your end.
One thing to remember when transmitting though, there is a time limit. You cant just hold down the button and talk. After a set number of seconds (I think 5 seconds) it cuts you off.