Not fot sure

I have received two calls from this number both on a Saturday and very early in the morning leaving no message.

I have received this call twice, and the caller breaks the law by failing to identify who they are.  They ask for the name of someone that does not live here.  From the voice message instructions, you are supposed to press 2 if you are not that person and later press 2 if you are that person.  (catch 22).  We never get a chance to press anything because it is all handled by the answering machine.