Unstructured Supplementary Service Data

Stax gets $2.2M for its app that lets Africans make transactions via automated USSD codes

Stax, a startup that allows Africans to buy airtime, send and request money, and transfer funds between accounts via automated USSD codes, has raised a $2.2 million seed extension round. U.S.-based VC

How Do You Connect 10 Million Dumbphone Users To Facebook?

As low internet penetration stifled <a target="_blank" href="http://facebook.com">Facebook's</a> early growth in emerging markets in 2011, Indian startup <a target="_blank" href="http://www.u2opiamobi