Which one is worse: That or Somebody introducing themselves to you but you already know who is calling because you looked at caller ID? Maybe this should be a twitter poll, idfk.
I've got a guy in one of our branches that hits me with this everytime he calls:
"Hey, this is Bob, Bob in Great Bend"
which is obvious when my phone display says Bob - Great Bend.
I know he knows better, since he knows it's me when I call him. Don't even bother introducing myself.