A call came into my desk phone at work through a "secure" inter-office phone network. Robo-call kicked in as soon as I answered saying they were attempting to collect a debt but not from whom. I called back and "Roberta" answered and she asked how she could help me. I told her the person she is looking for (not that I knew) isn't here and she needs to not call this number again. I did reluctantly give her my name (probably a mistake) and she agreed she wouldn't call again. How do these people get a hold of inter-office extensions???