Released on = June 1, 2006, 9:36 am

Press Release Author = Pingo.com

Industry = Telecommunications

Press Release Summary = Calls to More than 75 Countries Now 3 cents or Less per
Minute Using Pingo(R) Cheap Long Distance Phone Card Rate Service\'s with new Local
Access Numbers

Press Release Body = iBasis, the global VoIP company(TM), today announced that Pingo
(www.pingo.com), its cheap long distance phone card rates service, has reduced long
distance calling rates by as much as 30%. Now, Pingo customers using the service\'s
local access numbers in the U.S. can call more than 75 countries for 3 cents or less
per minute.

\"Pingo\'s RateWatcher(TM) promise is to continually look for ways to add value for
our Pingo customers so that Pingo really is the last calling card they\'ll ever
need,\" said Ofer Gneezy, president and CEO of iBasis. \"This time, we\'re leveraging
local access numbers across the U.S. to lower our costs, and we\'re passing that
savings on to our customers so they can Pingo the world for less.\"

Pingo\'s local access numbers are available in more than 800 communities in 38 states
plus the District of Columbia. By using local access, Pingo customers can save an
additional one cent per minute off the already low Pingo rates for long distance
calls. Whenever a local access number is not available, Pingo customers can always
rely on toll-free numbers, which are available in 35 countries, including the U.S.,
Canada, and the U.K. The full list of U.S. local access numbers and international
toll-free access numbers are available on the Pingo website.

About Pingo

Taking advantage of iBasis\' global VoIP network, Pingo enables consumers to realize
the cost-savings of VoIP or Internet telephony from their regular fixed or mobile
phones, without requiring any additional hardware or software downloads. Pingo
offers consumers in 35 countries high quality long distance service on a prepaid
basis, along with many convenient usability features. Pingo customers save on calls
to and from both landline and mobile phones. Mobile phone users in particular can
save as much as 90% on international calls by using Pingo\'s toll-free access and
lower rates on international calls. Minutes can be purchased using credit cards and
PayPal at http://www.pingo.com. New customers begin saving immediately with a
sign-up bonus of $5 worth of free calling and can receive additional $5 credits by
successfully referring their friends to the Pingo service. Pingo can also be used to
save on calls from 34 countries outside the U.S., including Canada, Japan, Germany,
Mexico, Russia, and the U.K.

About iBasis

Founded in 1996, iBasis (OTCBB: IBSE - News) 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(1).

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.

iBasis and Pingo are registered marks; the last calling card you\'ll ever need,
RateWatcher, and the global VoIP Company are trademarks of iBasis, Inc. All other
trademarks are the property of their respective owners.
Except for historical information, all of the expectations, plans and assumptions
contained in the foregoing press release constitute forward-looking statements under
Section 21E of the Securities Exchange Act of 1934 and involve risks and
uncertainties. Important factors that could cause actual results to differ
materially from such forward-looking statements include, but are not limited to, (i)
the Company\'s ability to execute its business plan; (ii) the Company\'s ability to
meet the listing requirements of NASDAQ, (iii) the extent of adoption of the
Company\'s services and the timing and amount of revenue and gross profit generated
by these services; (iv) fluctuations in the market for and pricing of these
services; and (v) the other considerations described as \"Risk Factors\" in the
Company\'s most recent Forms 10-K and 10-Q, and the Company\'s other SEC filings. Such
forward-looking statements are only as of the date they are made, and we have no
current intention to update any forward-looking statements.

(1) ATLANTIC-ACM International Wholesale Carrier Report Card - 2002, 2003, 2004, &
2005.


Web Site = http://www.pingo.com/fathersday.do

Contact Details = Contact:
iBasis, Inc.
Media:
Chris Ward, 781-505-7557
cward@ibasis.net
or
Investors:
Richard Tennant, 781-505-7409
ir@ibasis.net