This offering is on par with those of its cable rivals. But AT&T claims that it offers customers more for their money, including fast channel changing, video-on-demand, three set-top boxes, a digital video recorder, a picture-in-picture feature that allows viewers to surf channels without switching channels and an interactive program guide.

DKIM's precursor, DomainKeys, was originally developed by Yahoo. The specifications for DKIM were then extended by an informal group of IT organizations that included companies like Yahoo, Cisco, EarthLink, Microsoft, and VeriSign, among others. It was first submitted by the group to the IETF in mid-2005, but only recently published by the IETF. The spec is still to be incorporated into a more formal draft and submitted for approval, however.