From
http://www.local6.com/news/16933286/detail.html
(snip)
Meanwhile, Caylee's grandmother, Cindy Anthony, said she believes the missing girl called her mother the day the 22-year-old was arrested, Local 6 reported. She said she is convinced the child is still alive."Casey got a phone call (saying) 'Hi mommy' for just a brief second," Anthony said. "And when Casey said, 'Put an adult on the phone Caylee,' the phone went dead.'"
(/snip)
I have been suspicious of this report of a phone call - if no one was there, it's Casey's word and we all know that's not worth a lot right now. But Gma almost makes it sound like she was there and has first-hand knowledge of the call. Has she confirmed whether she was there when this call came in?
My other, more horrifying thought was that perhaps a call did come in, but it was a crank - their numbers are plastered all over Myspace, after all. It wouldn't be unthinkable, unfortunately, for someone to call and pretend to be Caylee. Yuck.