[Asterisk-Users] POTS fail-over?

[Jay Milk]

LOL, sounds like a challenge.  A PIC is only a buck or two, I think I
have a couple of zeners to decouple the ringing voltage (which I'd need
for analog, too), and programming a PIC is easy.  Oh yeah, and did I
mention that my analog circuit expertise is minimmal?  

Naw, still won't do it -- the relay will be just fine.

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Andrew
Kohlsmith
Sent: Wednesday, April 28, 2004 9:55 AM
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] POTS fail-over?


> Breaking out my trusty PIC programmer, I could probably do 
> line-voltage detection and automatically latch the relay once the 
> incoming line is idle... But like I said, overkill for my app :)

Yes, using a microcontroller is WAY overkill -- especially when a simple
LM324 
comparator and a handful of discretes would do it for you.  :-)

-A.
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