So this is a curiosity question, we had a prospective client call us who is 
essentially getting robocalled to oblivion. Some scammer has robo dialers setup 
and is flooding all of their trunks. He got a ransom, stopped and then started 
again. He was originally using one number and then when the telco blocked that 
switching to random sources.
Are there are any legitimate defenses to this sort of thing?

Matthew Loraditch
Sr. Network Engineer
p: 443.541.1518
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