I just got the same thing....I never answer unknown phone calls.  I figure, if it's important, they'll leave a message.

I did a reverse look-up at whitepages.com and got this info.

(412) 395-8022Type: Land Line
Provider: Tcg America Pittsburgh
Location: Pittsburgh, PA
Due to number portability, some numbers have been transferred to a new service provider.
Type: Land Line
Provider: Tcg America Pittsburgh
Location: Pittsburgh, PA