AT&T PARADYNE ANNOUNCES PLANNED NETWORK SERVICES FOR INTEGRATED VOICE AND
DATA

Services Providers Plan To Develop VoiceSpan Network Services

LARGO, FL (May 23, 1994) -- AT&T Paradyne is collaborating with a number of
services providers and teleconferencing bridge providers to explore new
ways to deliver simultaneous voice-and-data capability in network-based
services using AT&T's VoiceSpan technology. VoiceSpan allows simultaneous
voice-and-data communications over a standard telephone line by splitting
the line into two virtual channels -- one for voice and one for data.

The first of these companies -- MultiLink, Inc., ConferTech International,
Inc., Teleconferencing Technologies, Inc. and SpectraFAX Corp. -- plan
VoiceSpan-enabled audiographic conferencing, VoiceSpan-enhanced
fax-on-demand services, and interactive services for small businesses and
home user of PCs, telephones and fax machines. AT&T' s Business and
Consumer network services already support point-to-point use of VoiceSpan
modems, phones, PCs, game platforms and fax machines.

VoiceSpan Is Part of AT&T's Voice-and-Data Initiative

VoiceSpan is part of AT&T's voice-and-data initiative to bring together a
portfolio of integrated, interworking voice-and-data technologies under
one umbrella. This will include VoiceSpan, which currently provides for
analog simultaneous voice-and-data, and VoiceView, a switching mechanism
between analog or digital voice-and-data, from Radish Communications
Systems, Inc. of Boulder, Colorado. The AT&T initiative also will
ultimately include higher-bandwidth, digital simultaneous voice-and-data.
All technologies under AT&T's umbrella will interoperate, providing
flexibility for developers and users.

AT&T and Radish have signed an agreement, effective May 29, to license
VoiceView. The companies plan to jointly develop interoperability between
the VoiceView and VoiceSpan technologies. This effort will facilitate a
broader level of industry support and the development of a wide range of
integrated voice-and-data applications in the marketplace.

Don Cooper, president of personal communications technologies for AT&T
Paradyne, said VoiceSpan network services "will help pave the way for
broad consumer acceptance of integrated voice-and-data communications. Not
only will users in remote locations be able to use their VoiceSpan modems
and telephones to share and manipulate a document together -- while
talking -- but soon they will have access to a number of VoiceSpan
services as convenient to use as the telephone network is today."

"These services will be ideal for small and large businesses and
work-at-home consumers who need to make the most efficient use of their
time and money," Cooper said. "By integrating voice-and-data
communications using VoiceSpan, the services will give people more choices
-- with less trouble -- than when dealing with multiple communications
technologies."

Dave Rae, president of SpectraFAX, said VoiceSpan will help his company
"provide the benefits of online services to fax machine users. The service
will leverage the unique simultaneous voice/fax capability of VoiceSpan to
provide users with simple access, human voice guidance and hard-copy
delivery, removing many of the usage barriers of present computer-based
online services."

Daryl Braun, president and CEO of TTI, said, "We have been involved with
providing audiographics conferencing for several years and have
experienced the difficulties of not providing a clean, integrated and
standard single-line solution. VoiceSpan solves this for us.

A Variety of VoiceSpan Network Services Are Anticipated

VoiceSpan network services will let single-line telephone users see text,
data and graphics online while they speak, hear and participate in a
variety of services from their homes or offices. The services expected to
be developed will support:

* Seminars given by remote experts.
* Multiparty discussions to review/revise documents, images,
  graphics and even X-rays.
* Remote, large group meetings such as quarterly announcements,
  analysts meetings and sales meetings.
* Conversations with customer support representatives reached
  through an 800 number when you want to talk while also viewing
  a catalog order, a disputed bill or an insurance claim.
* Sessions with online data services that can connect you to
  a customer assistance agent.
* Online services for fax machine users.

One of the first businesses to use VoiceSpan-enabled services will be
REMBIS (Remote Expert Media and Business Information Systems) Associates,
a consortium led by Physicians World Communications Group, a New
Jersey-based medical education company.

Using VoiceSpan audiographic conferencing services, a VoiceSpan modem in a
notebook PC, REMBIS software and a REMBIS control unit, pharmaceutical
sales representatives will be able to facilitate interactive seminars led
by renowned expert physicians with practicing doctors in their offices.
The group also plans to use VoiceSpan services and systems for training,
sales meetings and other applications where easy access to remote
expertise would be valuable.

"VoiceSpan is the most revolutionary communications technology to be
introduced in the last five years," said Martin E. Cearnal, president of
Physicians World. "It is critical to our plans for the launch of REMBIS in
the healthcare industry this year."

Headquartered in Largo, Florida, AT&T Paradyne licenses data communications
and telecommunications technologies. The company is a leading developer,
manufacturer and marketer of high-speed modems, multiplexers and other
telecommunications devices for individuals, businesses and network
operators worldwide.

Radish Communications Systems, Inc. of Boulder, Colorado, focuses on the
universal integration of voice and data. As the owner and inventor of
VoiceView, the company develops and markets products that are designed to
increase the efficiency and value of telephone computer transactions. In
addition to the VoiceView protocol, Radish offers a full product line of
VoiceView applications software and display devices.

Based in Andover, MA, MultiLink, Inc. is a leading provider of multipoint
teleconferencing bridges. The company has announced plans to incorporate
VoiceSpan technology into its products and use DataBeam Corporation's
FarSite conferencing software and its T.120 standards-based technology for
multipoint voice and data teleconferencing.

Based in Woodstock, IL, Teleconferencing Technologies, Inc., the former
equipment arm of Darome Teleconferencing, manufactures specialized audio
products for the teleconferencing, distance learning and business
television industries.

SpectraFAX Corp. designs, manufactures and markets a full line of
high-performance fax processing systems that use the fax machine as a
terminal to increase the productivity and effectiveness of written
communications. Their patented Special Request systems fulfill the
information needs of leading organizations in the corporate, government
and association markets. Founded in 1983 in Naples, FL, SpectraFAX is
privately held.

ConferTech International is a leading provider of advanced products and
services to the rapidly growing teleconferencing industry. The company
maintains one of the largest teleconferencing bridge networks in North
America and has more than 25,000 conferencing bridge ports worldwide.

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