Telephone Recording Device - Easy To Build?

[Piyono]

Hey, guys,

I'm looking for a device to record telephone calls. I've gone through three modems and countless pieces of software and can't find anything that sounds halfway decent so I decided to try something like this:
http://www.telecomaudio.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=ta&Product_Code=VoiceTap

Of course, whenever I'm faced with the prospect of spending money, I always try to see if I can get away with spending *less* and still acheive the desired results.

Does anyone know what goes into these handset recorders? I have a basic understanding of electronics and good command of the soldering iron. If this is just a very simple device then I'd like to try my hand at building one.

Insights?


Piyono

 

[Howell]

http://www.chipcenter.com/eexpert/bmcginty/bmcginty024.html

There might be something better. This was the first hit on my Google search.

I also found searching for "computer based phone record":
http://telecom.hellodirect.com/docs/Reviews/CallRecorders.1.050201-P.asp
http://telecom.hellodirect.com/docs/Reviews/callrecorders.2.121201-P.asp

 

[Buck]

I've put together some nForce2 systems for call recording using these as the bridge between RJ11 and audio-in. They have worked very well.

 

[jtr1962]

I found this.

Here is the schematic:

A Google search turns up plenty of these things. The circuits look relatively simple to build. Just get a breadboard from Radio Shack and solder away. If you don't have an assortment of parts you may need to buy those, as well as a nice case. I doubt everything will set you back more than $10. I could make most of the circuits out of spare parts I have lying around.

 

[Mercutio]

You might also want to check to make sure that such recordings are legal within your county/state/province/whatever.

In Indiana, recording phone conversations without consent is legal. In nearby Illinois, it's not.

 

[i]

You might also want to check to make sure that such recordings are legal within your county/state/province/whatever.

In Indiana, recording phone conversations without consent is legal. In nearby Illinois, it's not.

You'll likely find the information you need here. (That's a useful site to bookmark, by the way.) Note that the issue can become very messy if you are on a call to a state that has different laws regarding phone call privacy.