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Read Press Release

XO Communications Receives INTERNET TELEPHONY® Magazine's 10th Annual Product of the Year Award

XO SIP Recognized for Outstanding Innovation

HERNDON, VA – January 7, 2008 – XO Communications, a leading provider of 21st century communications for businesses and communications carriers, today announced that Technology Marketing Corporation’s (TMC®) INTERNET TELEPHONY magazine (www.itmag.com) has named XO SIP as a recipient of its 2007 Product of the Year Award. INTERNET TELEPHONY has been the VoIP Authority Since 1998™.

“XO Communications has proven they are committed to quality and excellence while addressing real needs in the marketplace. INTERNET TELEPHONY is pleased to grant a 2007 Product of the Year Award to XO SIP,” said Rich Tehrani, TMC President and Editor-in-Chief of INTERNET TELEPHONY magazine. We’re proud to honor their hard work and accomplishments and look forward to more innovative solutions from XO Communications in the future.”

“We’re very excited to have XO SIP recognized as a leading IP Telephony service for businesses,” said Vince Margiotta, vice president of product management at XO Communications. “This recognition reflects not only INTERNET TELEPHONY’s review but our commitment to innovation and ongoing efforts to expand our portfolio of converged IP services and solutions.”

XO SIP delivers converged voice and data services to businesses with IP-PBX systems over a single, high-speed IP connection. XO SIP is a fully integrated solution designed to support the needs of businesses with the most demanding voice and data applications at single locations or multiple locations nationwide. Session Initiation Protocol uses a native IP-based facility to manage all traffic between a customer’s IP-PBX system, the XO IP network, and the Public Switched Telephone Network. XO SIP provides greater efficiencies by eliminating the need for businesses to maintain multiple access facilities for voice and data services and eliminates the need for bandwidth-consuming protocol conversions, thereby, simplifying the overall deployment and management of customers’ enterprise IP telephony services.

XO SIP includes a broad range of bandwidth options to maintain optimal network performance. XO SIP features include:

  • Unlimited local calling
  • Unlimited site-to-site calling for multi-location customers with IP Flex, IP Flex with MPLS IP-VPN and XO SIP locations
  • Long distance calling
  • Dedicated Internet Access in speeds up to 45 Mbps with Dynamic Bandwidth Allocation
  • Optional Voice Compression
  • Online Feature Management through the XO Business Center

XO SIP is currently interoperable with Avaya IP Office, Cisco Call Manager, Cisco Call Manager Express and Digium Asterisk Appliance.

A full list of Product of the Year winners will be published in the February, 2008 issue of INTERNET TELEPHONY magazine. (www.itmag.com)

For more information about TMC, please visit www.tmcnet.com.

About XO Communications

XO Communications, a subsidiary of XO Holdings, Inc. (OTCBB: XOHO), is a leading provider of 21st century communications services for businesses and communications services providers, including 50 percent of the Fortune 500 and leading cable companies, carriers, content providers, and mobile operators. Utilizing its unique and powerful nationwide IP network and extensive local metro networks and broadband wireless facilities, XO offers customers a broad range of managed voice, data and IP services in 75 metropolitan markets across the United States. For more information, visit www.xo.com.

About INTERNET TELEPHONY magazine

INTERNET TELEPHONY has been the VoIP Authority since 1998™. Since the first issue in February of 1998, INTERNET TELEPHONY magazine has been providing unbiased views of the complicated converged communications space. INTERNET TELEPHONY offers rich content from solutions-focused editorial content to reviews on products and services from TMC Labs. INTERNET TELEPHONY magazine has a circulation of 225,000 including pass-along readers. For more information, please visit www.itmag.com.

About TMC

Technology Marketing Corporation (TMC) publishes Customer Interaction Solutions, INTERNET TELEPHONY, Unified Communications, and IMS Magazine. TMCnet, TMC's Web site, is the leading source of news and articles for the communications and technology industries. Ranked in the top 6,000 most visited Web sites in the world by alexa.com*, TMCnet serves as many as three million unique visitors each month. TMC is also the first publisher to test new products in its own on-site laboratories, TMC Labs. In addition, TMC produces INTERNET TELEPHONY Conference & EXPO, and Call Center 2.0 Conference. For more information about TMC, visit www.tmcnet.com. (*alexa.com is an amazon.com company that ranks Web sites by their traffic levels. Neither alexa.com nor amazon.com is affiliated with TMCnet.) For more information about TMC, visit www.tmcnet.com.

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