Turkcell Breaks New Ground in the Advertising World!

ISTANBUL, May 7 /PRNewswire-FirstCall/ -- Breaking new ground in mobile advertising, Turkcell has launched "TonlaKazan" ("Tone&Win"), an innovative mobile advertising platform. By choosing a branded RingBack Tone on TonlaKazan, Turkcell customers will win airtime or credits when their callers listen to branded music

TonlaKazan, the world's first RingBack Tone mobile advertising platform, is a unique and innovative solution for the advertising industry. Turkcell customers win airtime or credits depending on the amount of time their callers listen to a branded RingBack Tone selected by the customer. During the launch period only a limited amount of Turkcell customers will be able to register for TonlaKazan.

Turkcell Value Added Services Chief Executive Officer Cenk Serdar said, "We are proud of breaking new ground in the advertising industry. We are not just launching a new advertising platform with TonlaKazan, but also a new concept. We have launched the service with major brands like Akbank, Coca-Cola, Digiturk, Garanti Bankasi, gnctrkcll, Kraft, Nestle, Nivea, P&G, and Unilever."

It is possible to become a member of TonlaKazan through Web, Wap and SMS channels. Customers can simply select the branded music of their choice as a RingBack Tone that they want their social community to hear.

4play Digital Workshop, a provider of innovative products and ideas, partnered with Turkcell to develop TonlaKazan.

TonlaKazan has a performance-based pricing model, Cost Per Listening (CPL) in which advertisers are charged according to the amount of branded RingBack Tones that callers hear, providing a measurable advertising channel.

http://www.tonlakazan.com/ About Turkcell

Turkcell is the leading GSM operator in Turkey with 35.4 million postpaid and prepaid customers as of December 31, 2007 operating in a three player market with a market share of approximately 57% as of December 31, 2007 (Source: The Telecommunications Authority). In addition to high-quality wireless telephone services, Turkcell currently offers General Packet Radio Service ("GPRS") countrywide and Enhanced Data Rates for GSM Evolution ("EDGE") in dense areas, which provide for both improved data and voice services. Turkcell provides roaming with 578 operators in 197 countries as of April 25, 2008. Serving a large subscriber base in Turkey with its high-quality wireless telephone network, Turkcell reported US$6.3 billion net revenue for the year ended December 31, 2007 as per IFRS financial statements. Turkcell has interests in international GSM operations in Azerbaijan, Georgia, Kazakhstan, Moldova, Northern Cyprus and Ukraine. Turkcell has been listed on the New York Stock Exchange ("NYSE") and the Istanbul Stock Exchange ("ISE") since July 2000 and is the only NYSE listed company in Turkey. 51.00% of Turkcell's share capital is held by Turkcell Holding, 4.22% by Cukurova Group, 13.07% by Sonera Holding, 2.32% by M.V. Holding and 0.01% by others while the remaining 29.38% is free float.

For further information: Defne Bali, Cem Tanir, Corporate Communications Tel: +90-212-313-2320 Email: defne.bali@turkcell.com.tr