That's what I meant by "corded phones". You are of course correct this would not work with a single set of cordless phones. You are right, cordless phones def

That's what I meant by "corded phones". You are of course correct this would not work with a single set of cordless phones. You are right, cordless phones definitely broadcast with no encryption of any sort. There was a recent HN thread about how radio receivers were banned from receiving the band these phones used because of this.