February 17, 2005

Arbinet Inc. launches "mobile on thexchange", a managed B2B solution for mobile interconnectivity, at the 3GSM World Congress in Cannes, France.

Arbinet operates a carrier neutral voice transaction and settlement service, processing nearly 1 billion minutes of off-network fixed and mobile traffic for 340 carriers each month.

Arbinet's mobile on thexchange service addresses mobile operators' unique off-network challenges, delivering improved call completion and routing visibility, critical for traffic management in the mobile space.

Mobile on thexchange provides a single interconnection for direct routing between network operators for mobile-to-mobile, mobile-to-fixed and fixed-to- mobile calls.

Improved call completion and duration generate additional minutes per call, thus more revenue for a provider. This is a simple way for an operator to increase average revenue per user (ARPU).

Charter mobile on thexchange Members include: Telecom Italia, with 10 international subsidiaries in Europe and Latin America; Western Wireless, with 8 international subsidiaries in North and South America, Europe and Africa; and Globacom, the mobile operator in Nigeria.

"Mobile on thexchange gives mobile operators a managed solution for traffic quality," says Curt Hockemeier, CEO and President, Arbinet.

"The service also helps operators reduce working capital and drive additional call minutes to their networks."

Mobile on thexchange delivers these benefits to mobile operators:

* Greater visibility into termination cost and quality, improving performance and revenue.

* Additional international termination partners to support growth and provide business continuity.

* A managed service alternative to additional network complexity and expense.

"Based on an analysis of calls sent directly to mobile operators on thexchange versus calls sent to the same operators via a refile intermediary from July to November 2004, direct routing increased calling minutes by 123%," says Melissa Deep-Schmid, Arbinet Managing Director Mobile Solutions.

"We believe Arbinet's mobile on thexchange solution allows mobile operators to increase their margins with direct network quality and price transparency."

Source: PR Wire, Malaysia.