[original poster was Richard Town]

 -=> Quoting Kurt Sletterdahl to Craig Ford <=-

 > An ITU teledoc subscription doesn't come cheaply either.
 KS> Speaking of the ITU, did they ever get around to making 31.2Kbps and
 KS> 33.6Kbps an official part of V.34?


The ITU-T WTSC approved the ammendments to V.34.  The amendments
include the data rates to 33.6 Kbps.  They also include the error
recovery procedures for fax which were already standardized in T.30
Annex F.  WTSC approval requires no follow up ballot.  Therefore this
approval is official and complete.

For a specific reference document for this approval, one may
refer to:
  WTSC document number 107 (15 October 96) contains the report of
  Committee 5 which agreed V.34 subject to Plenary approval (which was
  given).  Section 4.4 of Document 107 lists all of the Recommendations
  that were revised including V.34.  (Draft revised Recommendations
  V.11, V.18, V.24, V.25, V.25bis, V.34, V.38, V.42, V.110 and V.120
  were endorsed for approval by the Plenary.)

  Also, the designation of "Recommendation V.34" remains... the
  name "V.34" has not been changed.

[IMAGE] International
Telecommunication Union

United Nations specialized agency
for telecommunications

[IMAGE]

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.ch
                                                                           
   WWW: h(For information media, not an official record)
ITU/96-15
18 October 1996
Original: English
ITU APPROVES NEW FASTER MODEM STANDARD
_________________________________________________________________
Geneva  The International Telecommunication Union has approved an
amendment to the V.34 modem standard which will allow modems to send
and receive data at rates of up to 33,600 bits per second (bit/s).
Developed by Study Group 14 of the ITU's Telecommunication
Standardization Sector, the amended standard was accepted at the World
Telecommunication Standardization Conference, which was held in Geneva
from 9 - 18 October. The WTSC is convened every four years to review
and streamline the structure and working methods of the global
standardization process. The need for rapid development of global
standards which facilitate the interconnection of different systems is
becoming increasingly important as computers proliferate and more and
more information is processed and distributed via electronic means.

The acceptance of the amended V.34 standard will give the go-ahead for
equipment manufacturers to start to deliver new products based on this
high performance data technology. Increased modem transmission speed
cuts down the time needed by computers and fax machines to transfer
information, resulting in lower telephone bills.

Like the earlier version of V.34, the new modem will feature the
ability to automatically adjust its speed based on the quality of the
telephone line. Known as 'line probing', this feature allows the modem
to choose the highest possible transmission rate while at the same
time minimizing the likelihood of data errors. The modem also supports
a half duplex mode of operation for fax, and supports automoding to
existing V-series modems.

Other important features of the new technology which will be retained
in the new version of the standard include an optional auxiliary
channel, trellis coding and a 'handshaking' capability. The auxiliary
channel has a synchronous data signalling rate of 200 bit/s, and is
primarily intended to be used to convey modem control data independent
of the primary channel, which operates at between 2400 and 33 600
bit/s. Multi-dimensional trellis coding is used to improve throughput
by providing higher immunity to noise and other phone line
impairments. Included in the 'handshake' is a capability which allows
modems to identify themselves to other modems, which leads to shorter
times to connect.

The amended V.34 standard was developed by Study Group 14 Working
Party 1, under the guidance of Richard P Brandt of Motorola.

The standard is available from the ITU sales service at a cost of 29
Swiss francs. The service may be contacted on: tel: +41 22 730 6141
(English), +41 22 730 6142 (French), +41 22 730 6143 (Spanish).
[IMAGE]
-+-

Anyone seen a 28k8 connect using the 3000 symbol rate?

rgdZ
Richard

[end quote]

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