We pride ourselves on providing 34,8 million Turkcell subscribers with the best voice quality, thanks to our investments worth of 7,6 billion US Dollars. Because:

• We use the latest technologies in our infrastructure to ensure that our subscribers can make their calls with a superior voice quality, in accordance with the various requirements of different handsets,
• Number of uninterrupted calls, is one of the indications of a successful infrastructure. As Turkcell, we place great importance in uninterrupted calls of our customers, with our constantly and renewed infrastructure and precise engineering works.
• Provision of uninterrupted service despite a busy network is another indication of high quality in mobile communication. As Turkcell, we pride ourselves on providing high quality service to our custoemrs with a value that is much lower than the intensity rate of 2% GoS (Grade of Service).