The alleged victim, Nurse Officer Orla Finn, has said that after she offered a box of Anusol cream to the accused, he snapped it off her and said he hoped she died of cancer.
Ryan of Ballygarett, Gorey, Co Wexford has pleaded not guilty at Dublin Circuit Criminal Court to using a mobile phone from Wheatfield Prison on September 3, 2007.
He has also denied carrying out two counts of arson on cars outside the nurse's home in south Dublin the following night.
Ryan was serving a sentence for public order offences at the time.
Brendan McKenna from Vilicom Engineering told the court that he analysed the call details for the mobile phone registered to Fiona Ryan, the wife of the accused.
The court heard that call details showed that on September 3, 2007, a number of calls were made between Ms Ryan's phone and a Meteor phone.
Mr McKenna said that the records showed that Ms Ryan's phone was in use in the Wexford area in the morning and in the south west Dublin area in the afternoon.
He said that the records showed that her phone was in use in the Wexford area again that evening.
Eamonn O'Garvey, an engineer from the Meteor mobile company, gave evidence that calls from the Meteor phone to Ms Ryan's phone were routed through two masts, one in the Cherry Orchard business park and another in Clondalkin Business Park.
The trial continues before Judge Patrick McCartan.