On Mon, 9 Dec 2002, cfb wrote:
> On a serious note, I recently fixed an international remote support
> connectivity (modem dial-up) problem by converting a telephone line
> (which crossed regulatory boundaries involving slightly different line
> voltages) by converting the line from analog to ISDN... which makes
> "telco-powered" devices out of the question when the power goes out.
As far as I'm aware, ISDN lines still have battery connected. You may
even still run your ISDN phone from that battery power if it draws
little enough current, and you have a device like this to let you do it.
http://us.st.com/stonline/press/news/year1996/554ps.htm
cjs
--
Curt Sampson <cjs_at_cynic.net> +81 90 7737 2974 http://www.netbsd.org
Don't you know, in this new Dark Age, we're all light. --XTC
Received on Mon Dec 9 02:42:34 2002