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Article #3147AT&T news release
From: gregory j bonk
Date: Tue, 12 Jan 1993 15:51
Date: Tue, 12 Jan 1993 15:51
30 lines
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2552 bytes
I was sent this from a broadcast to AT&T employees.
Thought you might be interested.....
*** AT&T today announced a high-power, all-digital cordless phone
with four times the range of today's conventional cordless
telephones. The AT&T Extended Range Cordless Telephone 9530
operates in the 900-MHz frequency, providing virtually
interference-free conversations with consistent sound quality up
to one mile from the base. The AT&T 9530 uses full digital
transmission to encode speech onto a radio signal, much like music
is encoded onto a CD, and to provide clearer sound over a longer
range than cordless phones operating in the 46/49-MHz frequency.
AT&T's spread-spectrum, frequency-hopping architecture, which is
patent-pending, actually avoids interference by "hopping" the
radio signal among 50 of the available 173 channels during a
conversation. If any of the channels experience interference, the
9530 automatically swaps it for a new, clearer channel. Because
it operates over a different frequency, the AT&T 9530 is
unaffected by forms of interference common to 46/49-MHz cordless
phones, such as garage door openers, baby monitors and radio
intercoms. It also performs well in environments typically
difficult for conventional cordless, such as high-rise apartment
and multilevel buildings. The random selection of 50 of 173
channels, along with digital speech encoding, makes it nearly
impossible to eavesdrop on conversations. The AT&T 9530 was
designed and developed by AT&T Bell Laboratories, employing
advanced integrated circuit technology developed jointly with AT&T
Microelectronics. The AT&T Extended Range Cordless Telephone 9530
will be available in late spring at AT&T Phone Centers nationwide
for $449.99. For more information, call 800-222-3111.
Technical Details
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<1993Jan12.155103.16454@cis.ohio-state.edu>Path:
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Newsgroups: sci.crypt,alt.radio.scanner Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!elm.cis.ohio-state.edu!bonk From: bonk@elm.cis.ohio-state.edu (gregory j bonk) Subject: AT&T news release Message-ID: <1993Jan12.155103.16454@cis.ohio-state.edu> Sender: news@cis.ohio-state.edu (NETnews ) Organization: The Ohio State University Dept. of Computer and Info. Science Distribution: usa Date: Tue, 12 Jan 1993 15:51:03 GMT Lines: 31