We got our first call from 301-298-3779 with CNAM "Upper Marlbo MD" earlier today. It rang once and stopped. We use a third-party robocall blocking service that intercepts calls after the first ring from CID numbers known or suspected as sources of nuisance calls.
OH, BOY !! Another "free cruise" - courtesy of Marriott, IBM, and some cruise line !! The ONLY thing about this BS robocall that I find annoying is - it interrupted Stelvio Cipriano playing Anonimo Veneziano - especially my favorite fugue. Otherwise, it's just an ordinary pain in the azz.