There's a little information about the phone call in the article
@TwinkieDefense just posted. Brittany spoke with her mother a half hour before she disappeared. Her sister said, “She was not intoxicated or altered in any way.”
From the article:
“We had a brief conversation and she started to cry. I asked what was wrong and she said, ‘Oh nothing mom, we’ll talk about it later,'” ST said.
When she couldn’t reach Brittany Tee for two days, Susan Tee got worried and texted her boyfriend.
“He called me back very shortly after saying, what do you mean, how is Brittany doing? Isn’t she with you?” Susan Tee said.
They immediately went to the house and discovered Brittany Tee’s Jeep, with her purse and keys still inside.