Based on the context and the answer, generate a question. 

Context: My friend was so irritated when I spoke to her this afternoon . She got an anonymous call from a prank caller . She does n't know what the problem of the caller is and why the caller is saying such bad things about her . My friend was really so upset and she is really bothered on the identity of the caller .

Answer:

She got really upset and was called bad names .



What may have happened during the prank call of my friend ?