Who called from 2018818201

I didn't answer the call but when I dialed the number, heard a recording from Vonage

IM getting these calls CONSTANT. quite irritating I wont them to stop..

I have received repeated hang-up calls from this number.

Vonage Solicitation calls my business at least 10 times a day and just hangs up on me when I answer - called them back, asked to be removed from their call list ... we'll see if it actually works.

Well, that didn't work .... they have called at least 6x in the past two days, just hang up when I answer or don't leave a message.  This is very fustrating as I have to answer the work phone.