OREANDA-NEWS. August 14, 2012. The management of Mobile TeleSystems (MTS) will be holding a conference call to discuss the Company’s Second Quarter 2012 Financial and Operating Results on August 28, 2012.

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 and quote the conference ID, 5548928:

From the US:      + 16462543364

From the UK:      + 442077841036

From Russia      + 74952130979

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

The earnings release and the management’s slide presentation will be posted approximately three hours 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 28, 2012 to September 4, 2012:

From the US:      +13473669565         PIN 5548928: #

From the UK:      +442034270598       PIN 5548928: #

From Russia:     +81080028701012   PIN 5548928: #