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Dr. Conrad Murray's ex-girlfriend says their phone call was interrupted

Prosecution witness Sade Anding testifies during Dr. Conrad Murray's trial in the death of pop star Michael Jackson in Los Angeles, Monday, Oct. 4, 2011. Pool,AP Photo/Mario Anzuoni

(CBS/AP) LOS ANGELES - A woman who was speaking on the phone with the doctor charged in Michael Jackson's death the day the singer died says the call was interrupted and the physician was no longer paying attention to her.

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Sade Anding says she heard voices, coughing and mumbling on Dr. Conrad Murray's end of the line. She told jurors in Murray's involuntary manslaughter case that it sounded like his cell phone was in his pocket.

Anding, Murray's former girlfriend, says Murray called her at 11:51 a.m. on June 25, 2009. About five or six minutes into their call is when she noticed Murray was no longer paying attention.

Prosecutors in the manslaughter trial against Michael Jackson's personal physician are keeping jurors focused on the doctor's phone records from the day the King of Pop died. They are attempting to show that Dr. Conrad Murray was trying to juggle his medical practice, personal life and superstar patient all at the same time.

Testimony Monday was heavily centered on the calls Murray made and received on June 25, 2009, with witnesses ranging from the Houston-based cardiologist's patients, a doctor seeking advice, and a woman who had dated Murray.

Murray has pleaded not guilty. Authorities contend he gave the singer a lethal dose of propofol and other sedatives. Murray's attorneys claim Jackson gave himself the fatal dose. If convicted, Murray faces four years behind bars and the loss of his medical license.

Complete coverage of the Michael Jackson - Dr. Conrad Murray case on CBS News