Avaya Engineering interview questions

Initial communication from the company was from a corporate recruiter in New Jersey. This recruiter did not have answers to any questions regarding culture, salary range but did set up an interview for the next week with the hiring manager. 2 weeks later the hiring manager called and set up an interview time. During the interview the hiring manager was interrupted several times as he was trying to multitask an interview and several in house duties at the same time. Interview ended and he said the corporate recruiter would be calling me back later that week. After a week I called both the recruiter and hiring manager, reached a voicemail. Left message requesting call back. Two days later I called again, left another message requesting a call back. Several months have passed and I have not yet heard from them. Very unprofessional hiring process just based on the lack of respect for those that are being interviewed