DigiLinea Interconnects with iBasis Global VOIP Network

Leading VoIP Service and Infrastructure provider to the U.S. Hispanic and Latin American Markets Taps iBasis for High Quality International VOIP Services

BURLINGTON, MA— June 6, 2006 — iBasis, the global VoIP company™, announced today that DigiLinea, a leading VoIP service and infrastructure provider to the US Hispanic and Latin America markets, has interconnected its VoIP Network to The iBasis Network™. The interconnection enables DigiLinea to route international voice traffic over iBasis' global VoIP network, and iBasis to route calls to Latin American destinations over the DigiLinea regional VoIP network.

DigiLinea is leveraging iBasis' PremiumCertified™ international routing product, which is specifically designed to deliver the highest quality and stability for international termination of calls. Through a direct IP interconnection, retail carriers can fully leverage iBasis' VoIP expertise, including sophisticated network performance monitoring and call routing systems based on the company's patent-pending Assured Quality Routing technology.

DigiLinea is also benefiting from the lower capital and operational costs of VoIP and will have immediate access to iBasis' global VoIP network, which comprises more than 100 on-net countries. The relationship with DigiLinea provides iBasis with greater opportunity to capture a significant share of the international traffic from the U.S. Hispanic market and the emerging consumer VoIP market in Latin America.

"One of the major trends changing the global telecommunications landscape today is the rapid adoption of consumer VoIP services and the emergence of new service providers," said Ofer Gneezy, president and CEO of iBasis. "By leveraging our global network and relationships with hundreds of carriers around the world, service providers like DigiLinea are able to deliver the highest quality international service while continuing to focus on growing their consumer base and their regional presence."

"As the leading provider of VoIP services to the Latino market throughout the Americas, we are happy to make the DigiLinea pan-regional VoIP network available to iBasis.

This relationship allows both DigiLinea and iBasis to leverage each others' proven VoIP networks, both of which reflect the companies' commitment to high quality and customer service, making this relationship a win –win for both companies," said Gregory Keough, Chairman and CEO of DigiLinea.

The Latin America market, particularly Mexico, is considered a potentially strong area for VoIP growth. According to Pyramid Research, the Mexican telecommunication services market will generate more than $26 billion yearly by 2010, an increase of 30 percent from the roughly $20 billion in 2005. Revenue growth will be fueled mainly by mobile and fixed broadband services.

About DigiLinea DigiLinea (www.DigiLinea.com) is the leading VoIP service and infrastructure provider to the US Hispanic and Latin American markets. DigiLinea has been recognized as a VoIP pioneer as part of the 2004 and 2005 Pulver 100 and as one of Internet Telephony s VoIP Service Providers of the Year. DigiLinea is focused uniquely on the US Hispanic and Latin American markets and is vertically integrated into many countries in Latin America as DigiLinea owns local telecom licenses. This vertical integration allows DigiLinea to provide local Latin American telephone numbers and lower cost calling then other providers to our US Hispanic clients. DigiLinea currently provides service to thousands of US Hispanic and Latin American clients, who take advantage of the DigiLinea VoIP service experiencing substantial savings over traditional offerings. DigiLinea is a closely held private company with offices in the US and Latin America.

About iBasis Founded in 1996, iBasis (OTCBB: IBSE) is a leading wholesale carrier of international long distance telephone calls and a provider of retail prepaid calling services, including the Pingo® web-based offering (www.pingo.com) and disposable calling cards, which are sold through major distributors and available at retail stores throughout the U.S. iBasis customers include many of the largest telecommunications carriers in the world, including AT&T, Cable & Wireless, China Mobile, China Unicom, Verizon, Sprint, Skype, Yahoo!, and Telefonica. iBasis carried approximately 8 billion minutes of international voice over IP (VoIP) traffic in 2005, and is one of the largest carriers of international voice traffic in the world. For four consecutive years service providers named iBasis the best international wholesale carrier in ATLANTIC-ACM's annual International Wholesale Carrier Report Card . The Company can be reached at its worldwide headquarters in Burlington, Massachusetts, USA at 781-505-7500 or on the Internet at www.ibasis.com.