xo.com.

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For more information about Calysto, please call 404-266 -2060
or visit the company's web site at http://www.

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, Boston Communications
Group, Inc. For more
information, visit http://www.

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XO Communications Statement on Appointment of Kevin Martin as FCC Chairman

BEDFORD, Mass.

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As one of the nation's largest facilities-
based competitive telecommunications companies, XO looks forward to working
with Chairman Martin to ensure that the Commission remains committed to pro-
competitive policies that have helped bring new services and more choices to
millions of small businesses.

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Boston Communications Group Inc. Updates Going Concern Opinion for 2005

The basis for the going concern modification reflects the
uncertainty regarding the realization of assets and the satisfaction of
liabilities in the normal course of business as a result of the Freedom
Wireless litigation.

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calysto.

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contributors monopolies

Calysto works with start-ups as well as
public companies, helping them deploy new technologies, gain leadership
positions and influence editorial opinion to positively affect their bottom
line. For information regarding management's plans in regard
to these matters, please see bcgi's Form 10-K.

mergers mcchesney

Atlanta-based Calysto Communications will provide a breadth of public
relations services including messaging, content development, strategic counsel
and media relations to bring Cbeyond to the forefront of local and trade media
attention. Calysto will utilize its deep experience in telecommunications to
expand Cbeyond's position in the market as a provider of VoIP and next-
generation communications to small businesses in key U. "We think that Calysto will be a good partner because of
its expertise, along with their wealth of trusted media and analyst
relationships.

"Calysto welcomes the opportunity to apply our expertise and relationships
to raise awareness of Cbeyond's success in VoIP," said Calysto CEO Laura
Borgstede.

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)
The following statement may be attributed to Heather Gold, senior vice
president of government relations at XO Communications:

"We welcome new leadership at the FCC."

About XO Communications
XO Communications (OTC Bulletin Board: XOCM) is a leading provider of
national and local telecommunications services to businesses, large
enterprises and telecommunications companies. Founded in 1988, bcgi is a leader in
identifying and addressing new market needs with proven solutions, including
prepaid and postpaid billing, payments and access management.net.

mcchesney oligopolies

XO offers a complete portfolio
of services, including local and long distance voice, dedicated Internet
access, private networking, data transport, and Web hosting services as well
as bundled voice and Internet solutions.

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RESTON, Va.

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markets.

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ATLANTA, Calysto Communications, a public
relations firm focused exclusively on the telecommunications , wireless and
networking industries, announced that Cbeyond Communications, a managed
service provider for small businesses, has retained their services. Unlike general technology PR firms,
Calysto leverages its deep industry knowledge and intimate relationships with
market influencers to deliver Calysto clients unmatched industry mindshare,
analyst coverage and media publicity.

aol mergers

Cbeyond Communications Selects Calysto Communications as Agency of Record

As a commissioner, Kevin Martin,
along with his staff, has demonstrated a commitment to innovation and
competition in the telecommunications industry and a willingness to work with
all members of the Commission.

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XO provides these services over an
advanced, national facilities-based IP network and serves more than 70
metropolitan markets across the United States.

consolidation conglomerate

com . For more information, visit
http://www.

ABOUT THE COMPANY
bcgi delivers innovative products and services that enable mobile
operators and MVNOs worldwide to differentiate their offerings and increase
market penetration while reducing costs.

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It serves more than 16,000
customers in Atlanta, Chicago, Dallas, Denver and Houston -- currently
processing over 2 million calls per day.

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S."
Cbeyond concentrates exclusively on providing 100-percent VoIP
communications services to small businesses."

About Calysto
Founded in 1999, Calysto Communications is a full service public relations
firm focused solely on the specialized needs of the telecommunications,
networking, and wireless industries.

grossman outlining

, (Background: President
Bush today announced that he will designate Commissioner Kevin Martin as
chairman of the Federal Communications Commission.

implications contributors

"In a few short years, Calysto has established itself as a leading media
relations expert in the VoIP industry," said Brooks Robinson, chief marketing
officer at Cbeyond.

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"This is further proof that Calysto's concentrated focus on this
industry sets us apart in the level of recognized value we offer to our
clients. (Nasdaq: BCGI ), in compliance with NASDAQ Marketplace Rule
435(b)(1)(B), today announced that, consistent with the year ended December
31, 2004, the Company's independent registered public accounting firm included
a going concern explanatory paragraph in its report on bcgi's consolidated
financial statements as of and for the fiscal year ended December 31, 2005
included in bcgi's Form 10-K filed with the Securities and Exchange Commission
on March 13, 2006.bcgi.