InterCall Expands Its Streaming Services Portfolio With Acquisition of Unisfair

OMAHA, Nebraska, March 7, 2011 - InterCall, a subsidiary of West Corporation and the world's largest
conferencing and collaboration services provider, today announced the
acquisition of Unisfair, a leading global provider of virtual events and
business environments.

Unisfair enables companies to create branded and interactive virtual
environments that are engaging and help boost their pipeline with qualified
leads. Since 2000, industry leaders across all geographies have leveraged
Unisfair's platform to support their virtual strategies and as a result,
experienced improvements in lead generation, customer engagement, training
and recruiting, including:

    -- Companies in the high-tech and pharmaceutical industries leveraging
       the Unisfair Virtual Classroom have reported up to a 95 percent
       reduction in training costs. By replacing traditional training with a
       virtual classroom, companies are able to save millions of dollars
       without sacrificing effectiveness.
    -- Digital advertising agencies can extend their client's brand through
       the creation of custom virtual experiences that allow consumers to
       experience the brand in a whole new, interactive way.
    -- Marketing organizations are able to tailor their content to target new
       vertical audiences and cost effectively generate qualified sales
       leads. A software manufacturer reported a significant decrease in its
       cost per lead, now well below the cost of traditional lead generation
       methods.

"Unisfair and InterCall have a shared vision to offer industry-leading
technology to improve virtual communication and collaboration for companies
around the world," said Hoang Vuong, CEO of Unisfair. "Together we can
leverage Unisfair's known and trusted offerings and InterCall's
industry-leading collaboration services suite, global infrastructure and
client base to provide state-of-the-art, specialized solutions to a broader
range of customers."

InterCall acquired Stream57 in December 2009 and the addition of Unisfair
to InterCall Streaming Services emphasizes InterCall's continued commitment
to delivering innovative, best-in-breed technology and support to businesses
around the world.

"With the acquisition of Unisfair, InterCall can now offer complete
end-to-end virtual event solutions - from simple webcasts to comprehensive,
immersive virtual shows - on a proprietary platform," said Scott Etzler,
president of InterCall. "Until recently, the ability to host virtual events
and environments were nice-to-haves for companies but have evolved into the
next must-have technology. By expanding our offerings in this area, InterCall
is truly keeping in-step with the constantly evolving face of domestic and
global business communication needs."

About InterCall

InterCall, a subsidiary of West Corporation, is the largest service
provider in the world specializing in collaboration and conference
communications. Founded in 1991, InterCall helps people and companies be more
productive by providing advanced audio, event, Web and video conferencing
solutions that are easy-to-use and save them time and money. Along with a
team of over 500 Meeting Consultants, the company employs more than 1,500
operators, customer service representatives, call supervisors, accounting,
marketing and IT professionals. InterCall's strong U.S. presence, which
includes four call centers and 26 sales offices, is bolstered by a global
reach that extends to Canada, Mexico, Latin America, the Caribbean, the
United Kingdom, Belgium, Denmark, Ireland, Finland, France, Germany, Italy,
Netherlands, Spain, Sweden, Australia, Malaysia, New Zealand, China, India,
Hong Kong, Singapore and Japan. For more information, please visit
www.intercall.com.

About West Corporation

West Corporation is a leading provider of technology-driven, voice and
data solutions. West offers its clients a broad range of communications and
network infrastructure solutions that help them manage or support critical
communications. West's customer contact solutions and conferencing services
are designed to improve its clients' cost structure and provide reliable,
high-quality services. West also provides mission-critical services, such as
public safety and emergency communications.

Founded in 1986 and headquartered in Omaha, Nebraska, West serves Fortune
1000 companies and other clients in a variety of industries, including
telecommunications, banking, retail, financial, technology and healthcare.
West has sales and operations in the United States, Canada, Europe, the
Middle East, Asia Pacific and Latin America. For more information on West
Corporation, please call +1-800-841-9000 or visit www.west.com.

About Unisfair

Unisfair provides cloud applications for the world's most innovative
companies to create branded and interactive virtual environments. Unisfair's
Virtual Engagement Center is a new channel to connect with customers,
prospects and employees anytime and anywhere. Industry leaders like ADP,
Cisco, Genentech, Intuit, Novartis, IBM, and KPMG leverage Unisfair's
platform for lead generation, customer engagement, training, recruiting and
more.

Unisfair's virtual environments are easy to use and offer a highly
interactive experience through speaking sessions, exhibition floors and
networking areas. By tracking the activities of each individual attendee,
Unisfair delivers exceptional marketing intelligence. Backed by Sequoia
Capital and Norwest Venture Partners, Unisfair is headquartered in Silicon
Valley and has led the virtual events space since 2000. For more information
visit www.unisfair.com.

Forward-Looking Statements

This press release contains forward-looking statements. Forward-looking
statements can be identified by the use of words such as "may," "should,"
"expects," "plans," "anticipates," "believes," "estimates," "predicts,"
"intends," "continue" or similar terminology. These statements reflect only
West's current expectations and are not guarantees of future performance or
results. These statements are subject to risks and uncertainties that could
cause actual results to differ materially from those contained in the
forward-looking statements. These risks and uncertainties include, but are
not limited to, competition in West's highly competitive industries; West's
ability to keep pace with its clients' needs for rapid technological change
and systems availability; the loss, financial difficulties or bankruptcy of
any key clients; the effects of global economic trends on the businesses of
West's clients; the non-exclusive nature of West's client contracts and the
absence of revenue commitments; the cost of pending and future litigation;
extensive regulation affecting many of West's businesses; security and
privacy breaches of the systems West uses to protect personal data; the cost
of defending West against intellectual property infringement claims; West's
ability to protect its proprietary information or technology; service
interruptions to West's data and operation centers; West's ability to retain
key personnel and attract a sufficient number of qualified employees;
increases in labor costs and turnover rates; increases in the cost of voice
and data services or significant interruptions in these services; the
political, economic and other conditions in the countries where West
operates; changes in foreign exchange rates; West's ability to complete
future acquisitions and integrate or achieve the objectives of its recent and
future acquisitions; future impairments of our substantial goodwill,
intangible assets, or other long-lived assets; and West's ability to recover
consumer receivables on behalf of its clients. In addition, West is subject
to risks related to its level of indebtedness. Such risks include West's
ability to generate sufficient cash to service its indebtedness and fund its
other liquidity needs; West's ability to comply with covenants contained in
its debt instruments; the incurrence of significant additional indebtedness
by West and its subsidiaries and the ability of West's lenders to fulfill
their lending commitments. West is also subject to other risk factors
described in documents filed by the company with the United States Securities
and Exchange Commission.

These forward-looking statements speak only as of the date on which the
statements were made. West undertakes no obligation to update or revise
publicly any forward-looking statements, whether as a result of new
information, future events or otherwise, except to the extent required by
applicable law.

David Friedman of Ogilvy PR, +1-303-634-2674, david.friedman at ogilvypr.com, for InterCall