3. A method executed by a computer, the method comprising the steps of: obtaining, by the computer, a call request from a computing device, the call request pertaining to a topic and including a current location of the computing device, the topic comprising a product category, the call request including an identifier of the product category, and the current location locating the computing device within an area of a store in which products in the product category are displayed; identifying, by the computer, a topic specialist for the topic based at least in part upon the current location of the computing device; and completing, by the computer, the call request by establishing a call between the computing device and a computing device used by the topic specialist.
10. The method of claim 3 , wherein the current location of the computing device locates the computing device within a building.