I got a call this morning from this number, the person on the other end said that he was still on hold from a call that came from my number and was waiting for Robert.  I tried to explain to him that I never called that number and that there is no person by the name of Robert at this number, he kept repeating "just tell Robert that I am still waiting".  I strongly believe that this is a collection company, they use trickery and spoofed phone numbers in this case a number belonging to Interactive Intelligence company who probably makes their call center software.  I have contacted Law Enforcement about the harassing and threatening calls from spoofed numbers and was advised to maintain a good record of the calls for tracking and prosecution.  I am keeping a record of the calls for prosecution. These people are basically invading the privacy of law abiding citizens, they must not be allowed to get away with it.