I've started a quick investigation and it appears that call, yell and german Kehle (throat) go back to the same root as cold is supposed to come from, which is reconstructed variously. At least, indo european *gel has a wiktionary entry. And now my contribution is to propose a common meaning derived from wind, as in the windpipe or in harsh winter. But of course it's more complicated (it seems to me, most words go back to stone tools from the stone age). Whether that means a call were harsh and unaffective, or the word were signalling a connection to the celts (also from gel?) and whether that's good or bad is rather subjective. Likewise, reach (via rect?) might figuratively imply growth or just a metaphor for virtual meeting.