FLORHAM PARK, New Jersey, April 23 /PRNewswire/ --

Global Crossing (Nasdaq: GLBC), a leading global IP solutions provider,
will conduct a conference call on Tuesday, April 29, 2008 at 9:00 a.m. EDT/2
p.m. BST. Jean Mandeville, CFO, and Anthony Christie, managing director for
Global Crossing UK (GCUK) and Europe, will discuss GCUK's financial results
for the fourth quarter and full year 2007.

The call may be accessed by dialing +1-212-676-4908 or for UK callers by
dialing +44-(0)-870-001-3132. Callers are advised to dial in 15 minutes prior
to the 9:00 a.m. EDT/2 p.m. BST. The call will also be Webcast at
http://investors.globalcrossing.com/events.cfm.

A replay of the call will be available on Tuesday, April 29, 2008
beginning at 11:00 a.m. EDT/4:00 p.m. BST and will be accessible until
Tuesday, May 6, 2008 at 11:00 a.m. EDT/4:00 p.m. BST. To access the replay,
callers should dial +1-402-977-9140 or +1-800-633-8284 and enter reservation
number 21381571.

ABOUT GLOBAL CROSSING UK TELECOMMUNICATIONS LTD.

Global Crossing UK Telecommunications Ltd. provides a full range of
managed telecommunications services in a secure environment ideally suited
for IP-based business applications. The company provides managed voice, data,
Internet and e-commerce solutions to a strong and established commercial
customer base, including more than 100 UK government departments, as well as
systems integrators, rail sector customers and major corporate clients. In
addition, Global Crossing UK provides carrier services to national and
international communications service providers.

ABOUT GLOBAL CROSSING

Global Crossing (Nasdaq: GLBC) provides telecommunications solutions over
the world's first integrated global IP-based network. Its core network
connects approximately 390 cities in more than 30 countries worldwide, and
delivers services to approximately 690 cities in more than 60 countries and 6
continents around the globe. The company's global sales and support model
matches the network footprint and, like the network, delivers a consistent
customer experience worldwide.

Global Crossing IP services are global in scale, linking the world's
enterprises, governments and carriers with customers, employees and partners
worldwide in a secure environment that is ideally suited for IP-based
business applications, allowing e-commerce to thrive. The company offers a
full range of data, voice and security products to approximately 40 percent
of the Fortune 500, as well as 700 carriers, mobile operators and ISPs. Its
Professional Services and Managed Solutions provide VoIP, security and
network consulting and management services to support its Global Crossing IP
VPN service and Global Crossing VoIP services. Global Crossing was the first
global communications provider with IPv6 natively deployed in both its
private and public backbone networks.

Please visit www.globalcrossing.com or blogs.globalcrossing.com for more
information about Global Crossing.

CONTACT GLOBAL CROSSING:
    Press Contact
    Becky Yeamans
    +1-973-937-0155
    PR@globalcrossing.com

    Analysts/Investors Contact
    Gino Mathew
    +1-800-836-0342
    glbc@globalcrossing.com

IR/PR1

Web site: http://www.globalcrossing.com
              http://investors.globalcrossing.com/events.cfm
              http://blogs.globalcrossing.com