I was scheduled for an interview to begin at 1 pm and last until 1:30 pm. I waited by my phone. At about 1:20 pm I emailed the interviewer because she had not called. I received a voicemail about 1:30 pm from the interviewer that said she was running late and to call back for the interview. I had to leave for another commitment as out time slot had ended. I received an email from the interviewer that had an accusatory tone indicating that she tried to contact me and that she was only running a "little late." I responded with additional times I would be available in the coming days to interview but the interviewer never responded. Very unprofessional experience.