Russia's Vimpelcom says Q2 net income $470 mln

(Corrects spelling of "quarter" in first paragraph)

MOSCOW, Aug 28 (Reuters) - Vimpelcom , Russia's No.2 mobile phone operator, posted on Thursday a 30.9 percent jump in second-quarter net profit to $470 million, below expectations.

Revenues rose 52.1 percent to $2.61 billion, while operating income before depreciation and amortisation (OIBDA) increased 36.3 percent to $1.22 billion for a 46.8 percent OIBDA margin.

Analysts polled by Reuters forecast net profit at $489.8 million, revenue at $2.59 billion, OIBDA at $1.24 billion and OIBDA margin at 47.6 percent . (Reporting by Maria Kiselyova; Editing by Robin Paxton)