This site has some DECT products...
http://gizmodo.com/gadgets/dect/
John
John Scrivner wrote:
$50K up front and 50 cents a device to control an entire band in the
US sounds like a pretty cheap deal to me. I am surprised nobody jumped
on that. I do not see that as too much to pay and I am very surprised
this did not take off. I hate it when opportunity is right in front of
my face and I am too blind to see it!
Scriv
Rich Comroe wrote:
I haven't seen but one DECT phone here and it was very basic, but I
expect
that the technology will quickly be expanded to products like the multi
handset systems, etc that are getting popular from Uniden and all the
others.
There's a reason you haven't seen these products here. I began
searching for why the last time a thread discussed the 1.9GHz UL band
surfaced on this list. I doubt you'll ever see much product ever
emerge for this band in the United States. There's a reason for this
too ...
I've heard some discussion on this list regarding how "the FCC gave
the industry UL spectrum and they didn't use it." With such a
connection, wisps must understand why this band has been
underutilized here (as well as judging the chances of new products
emerging).
Years ago the FCC took this band away from Pt-Pt microwave users.
They authorized a group called UTAM to pay what was necessary to move
these microwave users to clear the band. Apparently UTAM spent
"whatever it took" since it wasn't there money. Manufacturers
wanting to field UL product had to pay UTAM what were known as
"clearing fees". Check out http://www.utam.org/ClearingFees.html.
Prior to April 1 2005 the clearing fees were enough to dissuade any
manufacturer from building UL product for the United States! IMHO
the UTAM fees doubled the cost of producing UL product. Since April
1 2005 the fees drop to a mere 50 cents per radio, but a manufacturer
must still pay UTAM $50,000 up front. With the lack of products,
UTAM has amassed a huge debt.
The FCC groundrules for clearing the Pt-Pt users from the band were
more than enough to insure that this UL band would never be
effectively utilized in the United States.
Just my opinion,
Rich
----- Original Message ----- From: Ralph To: 'WISPA General List'
Sent: Thursday, March 22, 2007 11:45 AM
Subject: RE: [WISPA] Using DECT phones to avoid interference issues.
I deployed a DECT (Digital European Cordless Telecommunications)
system with
450 handsets several years ago.
The phones were single line units made by Phillips. They system
worked OK,
but the features were very lacking. The frequency range was
1880-1900 MHz
This deployment was in Paris, France and was connected behind a PBX.
There
were about 21 "base stations", each one capable of supporting many
conversations.
The DECT system is interesting because it is the standard in Europe and
people's home handsets could be registered on this system. All I had
to do
was enter the code # into the management system. We were afraid
that the
handsets might begin disappearing due to the interoperability, but
these
handsets were so cheesy that the home models were much better.
The DECT system did handoff calls as the users walked between base
stations,
which was pretty cool.
A year or so aqo, DECT was authorized here in the US, on slightly
different
frequencies: 1920-1930 MHz. There was not any general hoopla at all
around
this introduction.
DECT isn't GSM, but the two are made to be very compatible and in
Europe,
there are dual mode DECT/GSM phones. These systems, which are
sometimes
used in installations like mine, allow the user to switch over to a
more
cost-effective DECT connection when in range, and the GSM signaling is
passed over to the DECT system, but in DECT format.
I haven't seen but one DECT phone here and it was very basic, but I
expect
that the technology will quickly be expanded to products like the multi
handset systems, etc that are getting popular from Uniden and all the
others.
It should eliminate all WISP interference for sure!
Ralph
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Dawn DiPietro
Sent: Thursday, March 22, 2007 9:54 AM
To: WISPA General List
Subject: [WISPA] Using DECT phones to avoid interference issues.
All,
I am sure some of you have already thought of this but I would
suggest a great alternative to avoid interference with the most
common frequencies used to deploy wireless networks would be to use
DECT cordless phones in the house. They use the 1.9Ghz frequency and
are relatively inexpensive. We use a DECT phone system here with all
the features we could ever ask for and we got them for a song after
the rebate.
Just a thought.
Regards,
Dawn DiPietro
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