Received call on my cell phone, no message left.

Received a call no message left, blocked number

I have missed calls from this number on 3/22, 3/24, 3/25, and 3/27. No messages left. Blocking this number now.

Received call from this number. Didn't answer. No voicemail. Called number back, got automated attendant and hung up after hearing "please stay on the line ... " Number now blocked

Just got a call from them today at 10:08AM, called them back at 2:50PM and an automated voice responded with, "you've been connected" with what were harsh digital scratches to follow. I waited in silence for about 20 seconds until another automated voice had said, "you've been kicked from the conference" and hung up on me.