On Thu, 24 Jan 2008, BillJ wrote:

Joseph Fenn wrote:
I know this is an off topic info msg but thought might be of interest
to some of you. I just bought the latest Radio Shack AT&T house
phone. It is progrmable and uses no batteriest to hold the settings
in tack. It had features like 4 pre programale instant memories
M1 M2 M3 that you can put in things lile "911" or 10-10-220
or Time check nr etc. You can set announcement after 2 rings then
it can store up to 19 incoming msgs or 29 minutes of calls.
I was bale to setup most of the features myself except the
Annoncement after 2 rings. I went back to radio schack and told
them I could'nt change the nr of rings to 2 followed by my
announcement. they said bring the phone in and they would do it
for me. I thought "oh no if I unplug the AC adapter I'll loose
all the stuff I had set up. But they said no "it has a batteryless
chip in it that retains the set up features without power of any
kind!!! In fact the box it came in says "battery less" phone.
So I took it down and the guy did it for me so fast I could'nt see
which keys he was pokeing. Now its set for 2 rings only instead of
7 rings prior to the automatic announcement. he said the phone reqjuires
no battery power to retain the "setup" contents. I wonder what kind

of chip can do this:: ROM or RAM??? ROM CHIP requires a burner
RAM chip reqyures some kind of battery backup lithium or whatever.
But this Home Ph had neither. It says right on the box that it came
in "batteryless phone"...
How can this be????????
Joe

It gets powered off the phone line's D.C. ??

Negative its not powered by the AC adaptor. It contains no batteries
in the phone either. In fact on the box it says No battery Phone.
Others tell me its a "flash rom chip" whatever that is, and it does
retain the "setup" features in tact even with the ac adaptor unplugged.
Joe