The calls also included one at 1:08 p.m., which other witnesses said was made from the ambulance containing Jackson, to Nicole Alvarez.

Alvarez, a 29-year-old actress, also stood the stand to testify that she developed a personal relationship with Murray.

The King of Pop, who was rehearsing for a series of comeback concerts in London, was found unresponsive in his rented Holmby Hills estate. He was proclaimed dead after being ambulanced to the Ronald Reagan UCLA Medical Center about six-minute drive from his estate.

The Los Angeles County coroner's office ruled that the pop icon died from an acute propofol intoxication. The potent sedative is usually administered in clinical and hospital settings for sedating patients.

Prosecutors contend that Murray failed to tell paramedics or doctors that he had administered propofol to the singer and took steps that were an "extreme deviation from the standard of care." They also contend Murray and security personnel collected drug vials and other materials from the room before calling 911.

The hearing, which began Tuesday, was held to help Los Angeles Superior Court Judge Michael Pastor to determine if there is enough evidence for Murray to stand trial on the involuntary manslaughter charge. If convicted, Murray could face four years behind bars.

The process is expected to last seven to eight days. Between 20 and 30 witnesses are expected to be called by the prosecution.