I WANT to talk to Grandma! Where are you?

Just about every evening, I put mom on speaker phone to talk to Lilly. I've always said that she recognizes mom's voice, because in one way or another, LG responds to the black rectangular thing emitting her grandma's voice. Lilly has, in fact, become very conversational. She truly will engage in conversation. Of course she doesn't actually SAY much, but she sure tries. And it seems as if she understands turn-taking. This video shows how frustrated she gets when she knows her Grandma is talking to her, but can't figure out where she is!