[dagskarlsen]

Originally Posted by dagskarlsen

I have been working further on my circuit to just keep 2 wires.

http://www.classicrotaryphones.com/f...h=211423;image

dsk

Just tested today, and yes it works, the excchange can not monitor the REN load.

Drawbacks:
1) polarity sensitive, does not accept reverse polarity.
2) The ring current continiues until the relay release.

dsk