Human on other end, but unable to understand anything he said due to background noise and a very thick accent.  I said there was no one by that name at this business, and he apologized before hanging  up.  Caller ID showed call came from NEXTIVA, but sometimes these calls comes from my own number!

no message left

No message left.  Callback lead to a real person who did not answer as a business.

Caller id says Nextiva. Have no idea who/what that is so # blocked

MESSAGE RECEIVED ON VOICEMAIL  "HEY TOM, "YOU'RE IT".  3 TIMES.UNKNOWN