I don't like phones especially. They make an annoying ringing sound, which usually isn't intended for me. (I have a wife and daughter). I have an answering machine which takes care of part of the problem, but there's a specific problem I'd like to solve that I'm sure other people (or at least other phonophobes) have solved. It goes like this:
When I have friends over, we usually sit in the basement, far away from the answering machine. It could happen that one of my friends needs to be reached in a hurry (say, by family), but I don't want to pick up the phone (or run upstairs to listen to the answering machine) every time the blasted thing rings, on the one-in-huge-number chance that it's important. (They mostly don't carry cell phones, and cells don't work well in my basement anyway.)
What I'd like is for my answering machine to pick up normally, but for some device in the basement to recognise the line's been picked up, and play the call over a speaker. If it's unimportant, which it will be virtually every time. I want to click a button, to shut the speaker off until the next call. If it is important, I'd like to click the button and then pick up a phone and talk, etc.
Someone just said the word "eavesdrop". No, that's not the intent. So I want the circuit to be easy to turn off, and have no effect when it is off; I'll turn it on when friends are over, etc.
A hack solution has been to put an answering machine in the basement, set to pick up one ring before the upstairs one does. The problem is that time has proven that I'm constitutionally incapable of remembering to turn it off when friends leave, so later, messages actually get left on it, and then no one remembers to check it. Which is bad. According to my wife and daughter.
I'd like to buy a solution, but if absolutely necessary I will build one. I've been surprised at how hard it is to find such as thing - I'd think listening in on calls would be extremely popular among the paranoid and jealous, and that can't be that small a market.
Anyone have any ideas? TIA.