Harassed by a rude, pushy salesman

I was just harassed by a very pushy salesman who did not let me go even when I said I had to join a meeting now and even phoned me back after I said goodbye and ended the call. He called me back to very rudely tell me that we were still talking and I cut him off. I Said thank you I need to go now and ended the call. Even after I said that I have a meeting starting as we speak, he kept pushing me. I have no obligation to stay on the line while your salespeople try to convince me to sign up immediately. Sheesh. Give me some space to reflect and make a considered decision.