You call "Mom", who you assume is Maureen's mom. She answers before the phone has even rang once.

MOM: Are you calling about Maureen?????? Or is that Maureen? Baby? Is that you??????
YOU:
This is the police. I'm calling to inform you that Maureen is dead.
OR
Is your refrigerator running?
OR
Yes mom, it's me, Maureen. 1

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