Cingular < Secure ⟶ >

In 2007, following the merger of AT&T and BellSouth, the Cingular brand was retired and renamed to the New AT&T. Iconic Devices:

Early Windows Mobile PDAs that featured slide-out QWERTY keyboards for text entry. cingular

In biology, "cingular" refers to structures related to a (a belt-like structure). In 2007, following the merger of AT&T and