iBasis Names Louis Eslami Vice President of Sales for Europe, Middle East and Africa

BURLINGTON, Massachusetts – 01/03/2008 – iBasis, Inc. (NASDAQ: IBAS), a KPN affiliate, today announced that it has named telecom industry veteran Louis Eslami to the position of Vice President of Sales, Europe, Middle East and Africa (EMEA).

Eslami brings two decades of experience in the telecommunications and internet sectors to iBasis, including senior management positions at FLAG Telecom, GTS Group, Sprint, and MCI. Eslami has been responsible for building effective sales teams across EMEA, US and Asia Pacific. Prior to joining iBasis, Eslami was Vice President of International Sales — EMEA, Asia Pacific and Emerging Markets for Getty Images, a leading global on-line media company.

Eslami is responsible for building iBasis’ international voice business with incumbent and emerging carriers, Internet Service Providers and mobile operators across a very large and diverse region that ranges from the Nordic countries to South Africa and from the U.K. to the CIS countries. He reports to iBasis Senior Vice President of Global Sales Edwin van Ierland.

“We are very pleased to add a proven executive like Louis Eslami to the iBasis sales management team,” said Ofer Gneezy, President and CEO of iBasis. “As more and more carriers worldwide consider the strategic decision to outsource their international voice business to specialized carriers like iBasis, it is to our great advantage to have the depth and breadth of experience that a senior executive like Louis can bring.”

About iBasis

Founded in 1996, iBasis (NASDAQ: IBAS) is a leading wholesale carrier of international long distance telephone calls and a provider of retail prepaid calling services and enhanced services for mobile operators. iBasis customers include KPN, KPN Mobile, E-plus, BASE, and many other large telecommunications carriers such as AT&T, Verizon, Vodafone, China Mobile, China Unicom, IDT, Qwest, Skype, Telecom Italia, Telefonica, and Yahoo. In October 2007, iBasis acquired KPN Global Carrier Services to create one of the three largest carriers of international voice traffic in the world (1), and KPN became a majority stockholder of iBasis. On a pro forma basis, the combined company carried more than 20 billion minutes of international voice over IP (VoIP) traffic in 2006. The Company can be reached at its worldwide headquarters in Burlington, Mass., USA at +1 781-505-7500 or on the Internet at www.ibasis.com.