call recorder - Electronic Circuits Projects Diagrams Free

sammy004 · 10th May 2008, 11:18 PM

Hi guys I'm trying to build this but I can't seam t figure out where the cap, resistors or other components on the back go.
http://www.engadget.com/2005/09/27/h...-an-old-modem/

jpanhalt · 10th May 2008, 11:24 PM

This is copied right from the post:

- two 10K ohm resistors
- two diodes (regular ol’ signal diodes)
- two 10uF capacitors or equivalent
- two female phone jack sockets, circuit mount
- a female mini jack socket, circuit mount (or a male cable if you don’t have a socket available)

What's not clear?

John

sammy004 · 11th May 2008, 02:01 AM

Quote:

Originally Posted by jpanhalt

This is copied right from the post:

- two 10K ohm resistors
- two diodes (regular ol’ signal diodes)
- two 10uF capacitors or equivalent
- two female phone jack sockets, circuit mount
- a female mini jack socket, circuit mount (or a male cable if you don’t have a socket available)

What's not clear?

John

Whats not clear? where they go.

blueroomelectronics · 11th May 2008, 03:08 AM

Hooking up DIY junk to the Canadian phone lines is a violation of your Bell contract.

Torben · 11th May 2008, 06:37 AM

Chances are he's on Telus, but yeah. If they notice it they probably won't like it.

Torben

Torben · 11th May 2008, 06:53 AM

There are some warnings in the comments on the linked page explaining some unsafe things about the circuit, too. Caps possibly popping and so on.

Torben

sammy004 · 11th May 2008, 07:20 AM

Actually I got it working and I'm not on a bell contract and finally as long as the other person knows I'm recording it's all good and if it's used for training purposes.

Torben · 11th May 2008, 07:27 AM

Hi Sammy!

Actually, you're on a Telus contract. Or whoever is paying for that phone line is.

The legality of the recording isn't in question; it's the legality of attaching DIY gear to the phone lines. Phone companies tend to view that sort of thing in a bad light. You can buy equipment which can do it, but it's also been licensed to be attached to the phone lines, and has been checked to make sure it's safe.

I'm pretty sure the caps shown on the page with the photos are nowhere near adequate. I'm no phone tech or engineer but IIRC, phone lines regularly have voltages well over 35V on them.

Torben

VISN · 13th May 2008, 11:30 AM

Q? Is it a civil/criminal violation or a criminal illegality ? Are these things prohibited by law?

blueroomelectronics · 13th May 2008, 12:23 PM

Most phone companies will simply disconnect your phone service, some might even fine you before they reconnect. Call your phone company as the rules may vary. You lease your phone line, you don't own it.

10th May 2008, 11:18 PM	(permalink)
sammy004 Experienced Member	call recorder Hi guys I'm trying to build this but I can't seam t figure out where the cap, resistors or other components on the back go. http://www.engadget.com/2005/09/27/h...-an-old-modem/

11th May 2008, 03:08 AM	(permalink)
blueroomelectronics Experienced Member Blog Entries: 4	Hooking up DIY junk to the Canadian phone lines is a violation of your Bell contract. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

13th May 2008, 12:23 PM	(permalink)
blueroomelectronics Experienced Member Blog Entries: 4	Most phone companies will simply disconnect your phone service, some might even fine you before they reconnect. Call your phone company as the rules may vary. You lease your phone line, you don't own it. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

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10th May 2008, 11:24 PM	(permalink)
jpanhalt Experienced Member	This is copied right from the post: - two 10K ohm resistors - two diodes (regular ol’ signal diodes) - two 10uF capacitors or equivalent - two female phone jack sockets, circuit mount - a female mini jack socket, circuit mount (or a male cable if you don’t have a socket available) What's not clear? John

11th May 2008, 06:37 AM	(permalink)
Torben Experienced Member	Chances are he's on Telus, but yeah. If they notice it they probably won't like it. Torben

11th May 2008, 06:53 AM	(permalink)
Torben Experienced Member	There are some warnings in the comments on the linked page explaining some unsafe things about the circuit, too. Caps possibly popping and so on. Torben

11th May 2008, 07:20 AM	(permalink)
sammy004 Experienced Member	Actually I got it working and I'm not on a bell contract and finally as long as the other person knows I'm recording it's all good and if it's used for training purposes.

11th May 2008, 07:27 AM	(permalink)
Torben Experienced Member	Hi Sammy! Actually, you're on a Telus contract. Or whoever is paying for that phone line is. The legality of the recording isn't in question; it's the legality of attaching DIY gear to the phone lines. Phone companies tend to view that sort of thing in a bad light. You can buy equipment which can do it, but it's also been licensed to be attached to the phone lines, and has been checked to make sure it's safe. I'm pretty sure the caps shown on the page with the photos are nowhere near adequate. I'm no phone tech or engineer but IIRC, phone lines regularly have voltages well over 35V on them. Torben

13th May 2008, 11:30 AM	(permalink)
VISN New Member	Q? Is it a civil/criminal violation or a criminal illegality ? Are these things prohibited by law?