It's the company that's at fault, not the individual worker (that is, if it's a legitimate company and not a scam).

They should comply with 'do not call' lists and not use automated diallers which are responsible for many silent and dropped calls.

vonage    Don't they know if I wanted another phone company I would look myself on the internet. and this waiting for them to say something to you after you say hello. Don't they know you don't like saying hello hello hello.

The call to me from this number was a phishing scam. I received a
telephone call from someone pretending to be from Vonage and with a
heavy foreign accent. The caller-ID says: "Vonage; 201-285-5421" on
9-9-14, at 4:38pm - pacific time. They called a non-Vonage number, but
I already am an actual Vonage customer myself. They told me I could
"start a brand new account for $9.99." It's a scam call. They were
phishing.

This caller spoofs the CID value of a nationally recognizable company only to harvest numbers to sell.

I knew from the number that this was an unwanted call - but I picked up the phone, held it for one second, and then hung up. Didn't give the telemarketer a chance to say even one word

But I'm sure they'll bother me again!