The popularity of gateways that interwork between the PSTN (Public Switched Telephone Network) and SIP networks has motivated the publication of a set of common practices that can assure consistent behavior across implementations. This document taxonomizes the uses of PSTN-SIP gateways, provides uses cases, and identifies mechanisms necessary for interworking. The mechanisms detail how SIP prov...

Innovation and community action are two important strands for sustainable development. Yet they have not hitherto been linked. Community action is a neglected, but potentially important, site of innovative activity. Bridging this divide offers a novel theoretical approach to the study of community-level action for sustainability. The opportunities presented by grassroots innovation are discusse...

Low-income Hispanics are the most digitally underserved population in the U.S. This article examines the potential of community-based participatory research approach to e-health to decrease the disparities in access to technology and health information in low-income Hispanic communities. To demonstrate this framework, we describe the process of designing a community-based e-health intervention ...