OREANDA-NEWS. On 07 August 2009 was announced, that the management of Mobile TeleSystems (MTS) will be holding a conference call to discuss the Company’s Second Quarter 2009 Financial and Operating Results on Tuesday, August 11, 2009.

Please note that the conference call will start at:

18:00 hrs (Moscow time)

15:00 hrs (London time)

10:00 hrs (US Eastern time)

To take part in the conference call, please dial one of the following telephone numbers, quoting the Company’s name, MTS:

From the US:          + 1 480 629 9848

From the UK:          + 44 207 190 1492 

International:          + 44 207 190 1492

The conference call will also be available at: http://www.mtsgsm.com/news/reports/ via audio webcast.

The earnings release will be posted approximately three hours prior to the conference call and the management’s slide presentation will be posted approximately one hour prior to the conference call at: http://www.mtsgsm.com/news/reports/.

A replay of the conference call will be available on the following telephone numbers from August 11 (from approximately 23:00 hrs Moscow time/20:00 hrs London time/15:00 hrs US Eastern time) to August 21, 2009:

From the US:          + 1 303 590 3030               PIN 4133178#

From the UK:          + 44 207 154 2833             PIN 4133178#

International:          + 44 207 154 2833             PIN 4133178#