I was taught that if you're the subject, "one" to be pedantic, it's "I." If a caller asks for you, for example, you respond, "It is I, Elizabeth." One of my very proper, older friends, whose father had been a noted professor at Cornell, would respond, "it is I, Ruth." I can't imagine "Hello it's I, I've thought about us for a long long time."

Matt wouldn't say, "Me is going to hold blah blah blah" tonight.