I just emailed Matrix Medical Network about their constant phone calls

[Siwsan]

2. If only! Calls disconnected, if the caller doesn't follow instructions, so robo calls get booted

If it is a human being calling, it's my understanding they hear a 4 digit code that they are instructed to enter, and then the call goes through. Robo calls, like these, still ring through once before getting dumped, so they are just annoying. They don't even register on my caller id. If I don't see them flash, for a few seconds on the TV screen, I don't even know they came in unless I check my on-line call log.

So I figure these calls will never end unless someone steps in.