BURLINGTON, Massachusetts, November 10 /PRNewswire/ --

- New PC-based Phone Feature Helps Customers Make Calls from Anywhere, Eliminate Access Charges and Avoid High Mobile Roaming Costs

Pingo, the prepaid VoIP calling service from iBasis (Nasdaq: IBAS), today announced a new feature that enables customers to make low-cost international calls using personal computers (PCs) from anywhere in the world where there is Internet access. With SoftPhone, Pingo customers can use Internet-connected PCs to call any fixed or mobile phone and avoid access charges and high mobile roaming costs. The feature is particularly cost-effective for calls made from international destinations as the calls are charged at the same low per-minute rates as those originating from the United States.

Unlike traditional calling plans, prepaid calling cards, international calling cards and other VoIP services, Pingo (www.pingo.com) allows consumers to purchase minutes on an as-needed basis. The service has no hidden fees, surcharges or further contractual obligation. Pingo Business (www.pingobusiness.com) provides small and medium-sized businesses (SMBs) with service for up to 999 employees, allowing administrators to easily set individual spending limits, monitor use and manage balances through a single, centralized account.

All Pingo customers can use fixed or mobile phones to make calls; no additional equipment purchases or software downloads are necessary. Pingo SoftPhone can be used with PCs anywhere in the world where there is Internet access, enabling customers to avoid access and mobile roaming charges, while enjoying the lowest call origin rates. Pingo is owned by iBasis, one of the top three carriers of international phone calls in the world, and operator of the most extensive international VoIP network. Due to the scale efficiencies of iBasis, Pingo can provide substantial savings on consumer and small business phone service. Mobile phone customers in particular can save as much as 90 percent using Pingo.

Pingo offers the best of all calling worlds: low rates, no hidden fees or extended contracts, and you buy only what you need, said Jayesh Patel, vice president of business development and strategy for iBasis. Now, with Pingo SoftPhone, customers have an opportunity to use the service anywhere and enjoy our lowest rates. For those living or traveling abroad, that also means avoiding access and roaming charges, saving mobile minutes, and not paying those exorbitant premiums that hotels charge for international phone calls.

Pingo offers easy online account management and minutes can be purchased via credit and debit cards and PayPal. Subscribers can also pay in four currencies, compare calling rates to any destination in the world, and interact with automated phone voice prompts in a variety of languages including Chinese, English, French, Korean, Polish, Portuguese, Spanish and Russian.

Other features of Pingo service include: - RateWatcher: Allows customers to view rates from country-to-country with a minutes tab calculating exact calling minutes to particular destinations based on account balance; - Customized Alerts On Rate Reductions: To take advantage of breaking rate reductions customers can receive automatic customized email alerts on the countries they call most. - Automatic Account Recharge: Accounts can be set to automatically recharge when minutes are running low. An interactive voice response system also alerts customers of low balances, and by simply pushing the * key, funds can be replenished; - Fast Speed Dialing/PIN-Less Dialing: Customers can call local access numbers and use speed dial to quickly connect. PINpass eliminates the need to enter a PIN number; - Easy Account Management: Starting a Pingo account takes seconds, and with features such as history reporting and online management, phone budgets are easy to control; - Security: Pingo's website is VeriSign Secured (a trusted provider of international transaction security). Pingo does not store credit card information on premises to eliminate hacking and accidental exposure of customer data.

Pingo and Pingo Business customers can access the service by phone in 35 countries, including the U.S., Australia, Canada, China, the U.K., France, Germany, Israel, Japan, Russia and Thailand. Pingo service via SoftPhone can be used with PCs anywhere in the world where there is Internet access.

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, TDC and many other large telecommunications carriers such as 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 approximately 24 billion minutes of international voice traffic in 2007. 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.

(1) Based on Telegeography 2007 and iBasis and KPN Global Carrier Services pro forma 2006 traffic.

iBasis is a registered trademark of iBasis, Inc. All other trademarks are the property of their respective owners.

Except for historical information, all of the statements 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. Examples of forward-looking statements include, but are not limited to, statements regarding our beliefs, expectations, plans and assumptions. Important factors that could cause actual results to differ materially from such forward-looking statements include, but are not limited to the factors described in the Company's most recent Annual Report on Form 10-K and other periodic and current reports, all of which are available at www.sec.gov. 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.

MEDIA CONTACTS: Chris Ward Marty Querzoli iBasis, Inc. Davies Murphy Group, Inc. +1-781-505-7557 +1-781-418-2433 http://www.ibasis.net ibasis@daviesmurphy.com http://www.daviesmurphy.com

Chris Ward of iBasis, Inc., +1-781-505-7557; or Marty Querzoli of Davies Murphy Group, Inc., +1-781-418-2433, ibasis@daviesmurphy.com