Is anger at repeated phone calls normal?

I get annoyed when I get called once a day but when I get called multiple times then I get really frustrated and angry. At the first call I usually just sigh, let it ring for a while and maybe answer if I know them but if I get called again I start questioning why the hell I became the most popular girl in the world and what could possibly be so damn Important that you would feel the need to bother me with a phone call?! Send an email!