Judge Debra Nelson said she would review the evidence and rule later on the admissibility of the calls.
After the hearing, Rumph returned to the witness stand briefly to provide details on calls to 911 from people in the neighborhood on the night of the shooting.
The next witness, Wendy Dorival, was the volunteer coordinator for the Sanford Police Department in 2011 when Zimmerman started the neighborhood watch program at Twin Lakes.
Dorival showed portions of a presentation she gave to the community on the role of neighborhood watch at a September 2011 meeting that Zimmerman attended.
Dorival testified that she told Zimmerman and other volunteers to call police when there was trouble and never to pursue or engage suspicious persons. Her presentation warned citizens that they are not "vigilante police" and should only serve as "eyes and ears" for law enforcement.
On cross-examination, Dorival told defense attorney West that Zimmerman was always polite and respectful in her interactions with him. She said the Twin Lakes neighborhood had experienced a series of burglaries and residents were most concerned about that.
Donald O'Brien, president of the Twin Lakes homeowners association, also testified Tuesday. He said Zimmerman told him he wanted to start the neighborhood watch program.
O'Brien also recalled telling Zimmerman about two workmen who spotted a burglary suspect, followed him from a distance and called police, leading to an arrest. He described the burglary suspect as a black male in his late teens.
Sanford Police Department Sgt. Anthony Raimondo Jr. testified that he arrived at the scene minutes after the shooting. He described failed efforts to resuscitate Martin.
Police crime scene technician Diana Smith took the stand to introduce pieces of evidence and photos taken after the shooting. Those pictures included close-up shots of Zimmerman's head with cuts on his scalp and nose.
Smith also photographed the crime scene and the surrounding area. She did not find any blood on the sidewalk or grass near where Martin's body was found, although she acknowledged she did not do an exhaustive search.
Prosecutors then called the first of several Twin Lakes residents who saw or heard some part of the confrontation or its aftermath.
Selene Bahadoor testified that she heard a noise coming from behind her house.
"It was not clearly distinguishable but it sounded like, 'No' or 'Uhhh,'" Bahadoor said.
Bahadoor said she heard the sound of running from left to right and saw figures and arms moving, but it was too dark to identify the people.
On cross-examination, defense attorney Mark O'Mara pointed out apparent inconsistencies between Bahadoor's testimony and her previous statements. She admitted that she may have never mentioned hearing the movement from left to right before.
Bahadoor also acknowledged that she signed a Change.org petition in support of prosecuting Zimmerman for the shooting.
Tough questions for key prosecution witness
When court resumed on Wednesday morning, Judge Nelson issued her ruling that Zimmerman's previous calls to police were admissible. Nelson also announced that a male alternate juror had been dismissed for reasons unrelated to the case.
Prosecutors then called more neighbors to testify about what they saw and heard on the night of February 26, 2012.
Jayne Surdyka testified that she heard loud voices outside -- one more dominant and the other softer. She turned off her light and was able to see two people on the ground, one on top of the other.
Surdyka called 911 and while she was on the phone, she heard two cries for help from what she thought was a younger voice. She said that she then heard three popping noises.
After the prosecutor played Surdyka's 911 call, she said she believed the call for help was from the person who died. On cross-examination, however, she agreed that a 17-year-old can have a deep, mature voice and she had never heard Trayvon Martin's voice before.
The next witness, Jeannee Manalo, also heard the call for help. She said it was too dark to see much, and she could not tell which of the men was screaming.
Manalo testified that she believed Zimmerman was the one on top, but she also said she based her idea of Martin's size on photos she saw of him on television, in which she could not actually see how tall he was.