deltathree Enhances Its Hosted Consumer VoIP Solution by Collaborating With XO Communications

deltathree's Hosted Consumer VoIP Solution Offers Expanded DID Coverage and Faster Local Number Portability Services in the U.S.


NEW YORK, Sept. 10, 2007 (PRIME NEWSWIRE) -- deltathree, Inc. (Nasdaq:DDDC), a leading provider of SIP-based Voice over Internet Protocol (VoIP) solutions for service providers and consumers worldwide, today announced that it has upgraded to the VoIP Origination and Termination services of XO Communications, a leading provider of 21st century communications services for businesses and communications services providers. XO's VoIP Origination services cover approximately 85% of the U.S. population. The resulting increase in efficiency and coverage area enables deltathree to offer its Hosted Consumer VoIP Solution clients a broader range of inbound phone numbers, also known as direct inward dialing (DID) services, faster Local Number Portability (LNP) services, and more aggressive call rates nationwide. deltathree's Hosted Consumer VoIP Solution continues to give service providers additional ways to further advance their businesses.

"We are thrilled to be upgrading our Hosted Consumer VoIP Solution to bring our service provider clients greater quality and cost savings," stated Gary Coben, deltathree's Director of Hosted Consumer VoIP. "With XO's expertise and vast market reach in the U.S., deltathree persists in offering its Hosted Consumer VoIP Solution clients and their customers the most optimally rich experience in VoIP communications. We look forward to expanding deltathree's U.S. based service provider business with the support of this initiative."

"XO is proud to be supporting deltathree in its mission to enhance its services to the U.S. market with our VoIP Origination and Termination services," stated Ernie Ortega, president of XO Carrier Services. "As a leader in communications services nationwide, XO is committed to providing innovative and proven solutions that help our customers expand their addressable market."

deltathree's Hosted Consumer VoIP Solution is a comprehensive, customizable turnkey solution for service providers looking to launch their own VoIP offering with minimal investment and rapid deployment. The Hosted Consumer VoIP Solution enables service providers to build, customize and rapidly launch complex direct to consumer VoIP products, such as Broadband Phone, with minimal risk and investment. Its robust back office suite of services includes: billing, e-commerce and fraud management, provisioning and configuration, web applications, Customer Premise Equipment (CPE) and more. Service providers also benefit from telephony features such as inbound and outbound calling, voicemail, advanced call forwarding, speed dial, follow me/find me, 411 and E911.

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 deltathree

Founded in 1996, deltathree, Inc. is a leading provider of integrated Voice over Internet Protocol (VoIP) telephony services, products, hosted solutions and infrastructure. deltathree offers high quality Internet telephony solutions that are viable and cost-effective alternatives to traditional telephone services. Supporting hundreds of thousands of active users around the world, deltathree serves customers through its two primary distribution channels: the Service Provider / Reseller channel and the direct-to-consumer channel. deltathree's advanced solutions offer service providers and resellers a full spectrum of private label VoIP products and services, as well as a back-office suite of services. Utilizing advanced Session Initiation Protocol (SIP) technology, deltathree provides all the components to support a complete VoIP service deployment. deltathree's Consumer Group consists of the award-winning iConnectHere direct-to-consumer offering and joip, the newly formed consumer brand that powers the VoIP service of Panasonic's GLOBARANGE hybrid phone.

For more information about deltathree, please visit: www.deltathree.com.



            

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