laptop battery systems allow you to contact a user that may be walking around.
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Each system has a base unit which enables you to page the handset of a
user, so long as they are in range. You can then speak to the user
through the intercom facility. Some systems allow you to use another
handset as the intercom instead of the base station.
http://profiles.yahoo.com/blog/How you ask? With Internet phone service, or more specifically, broadband phone.
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Don’t be confused by the name. A common misconception is that you’ll
have to use, or have your computer running to use broadband phone
service. Not true my friend! Your computer can be completely shut down,
and you don’t need it at all to use your telephone with broadband phone
service. No more headphones, no more typing in phone numbers, just use
any touch tone telephone to make and receive phone calls the same way
you always have.
How is this possible? You may be shocked by this but, you’re
essentially cutting out the middle man to transfer your incoming and
outbound phone calls with a tiny black box that does the same job your
traditional phone company has always charged you for. It’s called a
broadband phone adapter. The broadband phone adapter uses your Internet
connection, (not your computer) to send your calls out to the same grid
your traditional phone company uses to transfer phone calls! By cutting
out the middle man, (your phone company) you’re also cutting out a huge
chunk of your phone bill.
There is growing consensus that laptop battery antennas may be harmful
to humans due to the huge volume of electromagnetic waves that get
concentrated around it during the receipt and placing of calls. This
danger is even further aggravated by cellular manufacturers who place
the internal antennas close to the earpiece.
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