Autor: Miroslaw Kaminski (mjk_at_scientific.com.pl)
Data: Sat 07 Feb 1998 - 11:06:50 MET
Prosze przeczytac....
MK
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important press release from ITU !
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http://www.itu.ch/newsroom/press/releases/1998/98-04.html
International
Telecommunication Union
United Nations specialized agency
for telecommunications
Release
This press release is published in French, English and Spanish. For
further
information, or for additional copies in one of the languages, please
contact
the Press Office, International Telecommunication Union.
Telephone: +41 22 730 6039
Telefax: +41 22 730 5939/733 7256
Internet: pressinfo_at_itu.int
Web: http://www.itu.int/newsroom/
(For information media, not an official record)
ITU/98-4
6 February 1998
Original: English
AGREEMENT REACHED ON 56K MODEM STANDARD
Geneva ž The International Telecommunication Union agreed today on the
technical
specifications for PCM modems (also known as 56K modems) and has
initiated the
formal approval process.
The ITU, a United Nations agency, coordinates global communications
standards.
Study Group 16 of the ITU Telecommunication Standardization Sector
(ITU-T) where
the work on the modem standard was carried out, drives the development
of
standards for multimedia systems.
The new Recommendation, designated V.90, is expected to be widely used
for
applications such as Internet and on-line service access. V.90 modems
are
designed for connections which are digital at one end and have only
one
digital-to-analogue conversion. Download speeds of up to 56,000 bits
per second
(bit/s) are possible, depending on telephone line conditions, with
upload speeds
of up to 33,600 bit/s. Manufacturers currently producing modems based
on
proprietary schemes have already stated they will rapidly migrate to
the new
standard.
According to industry analysts, the ITU agreement will boost modem
sales
significantly. VisionQuest 2000, a market researcher, estimates the
number of
modems shipped each year likely will rise to 75 million by the year
2000 from 50
million in 1997.
Work began on the development of V.90 (previously referred to as
V.pcm) in the
ITU-T in March 1997. "This is the shortest period of time ever taken
for an
ITU-T modem Recommendation to achieve 'determination' approval status,
and
demonstrates a commitment by the ITU-T to respond quickly to urgent
market
needs", said Mr. P.-A. Probst, Chairman of Study Group 16.
The V.90 modem harmonizes the two competing proposals submitted last
year.
Customers who have purchased 56kbps modems based on either technology
may be
able to get software to make their devices compatible with the new
ones
developed on the V.90 standard.
Note to Editors:
The Study Group has agreed to apply the approval procedure under which
the draft
text is circulated to all ITU-T members to determine whether the Study
Group is
to be assigned the authority to give it final approval ("decision") at
its next
meeting. After unanimous approval by the Study Group, the standard
takes effect.
For the V.90 draft standard, the "decision" step is scheduled for
September
1998.
For more information, please contact:
Mr. Les Brown Mr. John Magill Pierre-Andre Probst
Rapporteur for PCM Modems Chairman, Working Party 1/16 Chairman,
Study Group 16
tel: +1 905 507 7361 tel: +44 1666 51 01 05 Tel: +41 22 797 7700
E-mail: les.brown_at_itu.int E-mail: john.magill_at_itu.int E-mail:
pierre-andre.probst_at_ptt.inet.ch
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