They have called twice today. Did not leave a message. Tried to call them back, got no answer. Turned off cell phone.

received this call in San Francisco at 1:20pm today.
Answered, but didn't say hello. After 2 seconds, some guy said "Hello? Is this XXXX? (correct business name, BTW)"  There was an incredible amount of background noise (other telemarketers making calls).
I hung up.

toll free number
called my buiness line around 6pm.

blocked them with my phone..
uniden 6.0 phone block up to 20 calls..best phone ever!!!!
plus having private manager on the land line phone helps too.