Complex sentence: In May 2016, McKelvey joined the board of directors of Calpian, Inc., which offers mobile money solutions through its Indian subsidiary MoneyOnMobile, enabling Indian people to pay for goods and services and transfer money to other persons via their mobile phones.
Split into simpler sentences: In May 2016, McKelvey joined the Board of Directors of Calpian, Inc., which offers mobile money solutions through its Indian subsidiary MoneyOnMobile. This venture enables people in India to pay for goods and services and transfer money to other persons via their mobile phones.