In-Use Indicator

by Liam

In-Use Indicator
This is a gadget that I can’t believe isn’t part of a standard phone. I find the most annoying thing when you want to make a call is when you pick up the phone and there’s already someone talking on it. It’s even more annoying when you start dialing without listening to see if it’s clear too ;).

The In-Use Indicator easily solves this annoying problem. It simply lights up a red LED light when the line is in use, just as simple as that.

It’s very easy to setup, only requiring that you plug it into your phone via the phone jack. It then just runs off of one 9-volt battery.

This would be so helpful so you don’t walk in on peoples’ calls, or even worse disconnect someone from the Internet if you’re on dial-up! It will even alert you when the line becomes free and should give your house a little bit more order to it.

This very helpful, yet very simple gadget is available from Gizmo City for $14.95.

4 reviews or comments

Richard Says: February 29, 2008 at 2:29 pm

I’m looking for an “In-use Indicator”that you showed for phones at $14.95 available from Gizmo City. However I cannot get to their website and wondered if you know of any active places where I might obtain this device.


Richard Candlish
Florence, Vermont

Mr Brown Says: October 31, 2008 at 12:40 pm

Nice that you describe exactly what I’m looking for but quite sad that you don’t have a link that takes you to where one can be purchased. Defeats the purpose of posting this page, don’t you think?

Richard Says: April 9, 2011 at 1:44 pm

Where do I find-

Searching for an IN USE light indicator on available phones?

Paul Says: February 3, 2012 at 8:16 am

Has anyone found an in-use indicator yet?

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