answered this call knowing it was going to be some sort of sales call or a damn pharmacy wanna be - hey I've got time to jerk them around - but all I got was a woman who gave a faint giggle and then hung up. Yeah, I would be laughing too if I had to make these calls for a living
telemarketer
I created a contact called telemarketers on my iphone and put all the phone numbers like this in this contact. I block it and have it set to ring as a 10 sec of silence ringtone.