SCHIPHOL, THE NETHERLANDS--(Marketwire - Jun 18, 2012) - Elephant Talk Communications Corp. (NYSE MKT: [ ETAK ]) (NYSE Amex: [ ETAK ]) ([ www.elephanttalk.com ]), an international provider of business software and services to the telecommunications and financial services industry, today announced it is set to join the Russell Global Index when Russell Investments reconstitutes its comprehensive set of global equity indexes on June 25, 2012, according to a preliminary list of additions posted June 16, 2012 on [ www.russell.com ].

Membership in the Russell Global Index, which remains in place for one year, means automatic inclusion in the appropriate large-cap, small-cap, all-cap indexes as well as the applicable style, sector and country indexes. Russell determines membership for its equity indexes primarily by objective, market-capitalization rankings and style attributes.

"Inclusion in the Russell Indexes is an important step in the evolution of Elephant Talk and is expected to increase awareness of ETAK among institutional investors and the investment community in general," said Mr. Steven van der Velden, Chief Executive Officer of Elephant Talk Communications. "We believe that being part of such a broadly benchmarked index should increase demand for our stock from investors seeking to track index performance."

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. In the institutional marketplace, an industry-leading $3.9 trillion in assets currently are benchmarked to them.

The Russell Global Index, which captures approximately 98% of investable securities globally, is reconstituted annually and all sub-indexes are recalibrated simultaneously to accurately measure current market realities for each market segment. These investment tools originated from Russell's multi-manager investment business in the early 1980s when the company saw the need for a more objective, market-driven set of benchmarks in order to evaluate outside investment managers. Russell launched the Russell Global Index in 2007, leveraging the popular methodology from its U.S. indexes. The broad-market Russell 3000 Index serves as the U.S. component to the Russell Global Index.

Total returns data for the Russell Global Index and other Russell Indexes is available at [ http://www.russell.com/indexes/data/Global_Equity/russell_global_returns.asp ].

About Russell:
Russell Investments (Russell) is a global asset manager and one of only a few firms that offers actively managed, multi-asset portfolios and services that include advice, investments and implementation. Working with institutional investors, financial advisors and individuals, Russell's core capabilities extend across capital markets insights, manager research, Indexes, portfolio implementation and portfolio construction. Russell has approximately $155 billion in assets under management (as of 3/31/2012) and works with 2,400 institutional clients, more than 580 independent distribution partners and advisors, and individual investors globally. Founded in 1936, Russell is a subsidiary of The Northwestern Mutual Life Insurance Company.

About Elephant Talk Communications:
Elephant Talk Communications Corp. (NYSE MKT: [ ETAK ]) (NYSE Amex: [ ETAK ]) ([ www.elephanttalk.com ]) is an international provider of business software and services to the telecommunications and financial services industry. The company enables both mobile carriers and virtual operators to offer a full suite of products, delivery platforms, support services, superior industry expertise and high quality customer service without substantial upfront investments from clients. Elephant Talk provides global telecommunication companies, mobile network operators, banks, supermarkets, consumer product companies, media firms, and other businesses a full suite of products and services that enables them to fully provide telecom services as part of their business offerings. The company offers various dynamic products that include remote health care, credit card fraud prevention, mobile internet ID security, multi-country discounted phone services, loyalty management services, and a whole range of other emerging customized mobile services. For more information, visit ([ www.elephanttalk.com ]).

Forward-Looking Statements
Certain statements contained herein constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements may include, without limitation, statements with respect to the Company's plans and objectives, projections, expectations and intentions. These forward-looking statements are based on current expectations, estimates and projections about the Company's industry, management's beliefs and certain assumptions made by management. Readers are cautioned that any such forward-looking statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Because such statements involve risks and uncertainties, the actual results and performance of the Company may differ materially from the results expressed or implied by such forward-looking statements. Given these uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. Unless otherwise required by law, the Company also disclaims any obligation to update its view of any such risks or uncertainties or to announce publicly the result of any revisions to the forward-looking statements made here. Additional information concerning certain risks and uncertainties that could cause actual results to differ materially from that projected or suggested is contained in the Company's filings with the Securities and Exchange Commission (SEC), copies of which are available from the SEC or may be obtained upon request from the Company.