It's funny how sales professionals get stuck on opening lines for cold calls. Not ha-ha funny, but interesting. We're so good at starting conversations we can get tree bark to talk to us.
Cold call conversations are fast, not at all like in person sales calls where there is time for warm-up conversation and visual cues that give insight.
The best cold call openings get to the point fast. State your name - first name only since the prospect is going to ask you to repeat your name anyway - and state what you want - an appointment.