OREANDA-NEWS. On 05 August 2008 was announced, that the management of Mobile TeleSystems (MTS) will be holding a conference call to discuss the Company’s Second Quarter 2008 Financial and Operating Results on Tuesday, August 12, 2008.

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:                      +1 480 248 5083

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 12 (from approximately 21:00 hrs Moscow time/18:00 hrs London time/13:00 hrs US Eastern time) to August 22, 2008:

From the US:                      +1 303 590 3030                               PIN 3908747#

From the UK:                     +44 207 154 2833                             PIN 3908747#   

International:                       +44 207 154 2833                             PIN 3908747#