How do I tell whether the phone's ringing?

["Tracey Gardner" <tracey.gardner@xxxxxxx>]

Hello Mark

I did a quick search on google for "ringing current detector" and
came up with a number of solutions. Have a look at the following
examples,

http://www.homeautomator.com/rdetect.htm

http://www.hut.fi/Misc/Electronics/circuits/telephone_ringer.html

Tracey




tracey.gardner@xxxxxxx
Lincolnshire
U.K.
-----Original Message-----
From: Mark Harrison <Mark.Harrison@xxxxxxx>
To: ukha_d@xxxxxxx <ukha_d@xxxxxxx>
Date: 05 December 2001 12:53
Subject: [ukha_d] How do I tell whether the phone's ringing?


>Before I start, let me pre-empt any responsese along the line of
>"listen", OK :-)
>
>Seriously, I'd like Homevision to "do stuff" when the phone's
ringing.
>
>The "stuff" would initially be along the lines of
>
>    If I'm watching a DVD, Laserdisk of Video, then pause it
>    If I'm watching broadcast TV or playing MP3s on the DDAR
then turn
>the volume down a fair bit
>
>... but might turn into
>
>    [DVD, Laserdisk, VCR]...and then swtich the Telly to the
>"Homevision" channel and display the incoming number
>
>Let's shelve the "how do I get the incoming number" bit for
the
time
>being, and concentrate on the "how do I tell the phone's
ringing"?
>
>Any suggestions? I want a _device_ that either plugs into an
input port
>on HV or sends an X-10 command. I don't want either a bit of PC
>software, nor a kit/circuit diagram ... unless it's also
accompanied by
>an offer to make it up for me - anyone who's ever seen me
soldering will
>understand why I feel this way :-)
>
>Regards,
>Mark Harrison
>Head of Systems, eKingfisher
>
>
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