Call came to my personal cell phone, blocked it immediately. Called the number back from untraceable phone line and greeted with rapid busy signal, classic sign of telemarketers and the like.

Yeah, repeated calls.  No answer when picked up.

called multiple times a day, left no messages..

Call to my Google Voice number.  No message.  Banned for life!

Called multiple times today and wouldn't stop. Left no voicemail.