AT&T (T) has appointed Mike McCallister, CEO of health insurance giant Humana from...

|By:, SA News Editor

AT&T (T) has appointed Mike McCallister, CEO of health insurance giant Humana from 2000-2012, to its board and audit committee. McCallister's nomination comes as AT&T tries to grow its machine-to-machine (M2M) subscriptions, in the healthcare market and elsewhere.