When the mission begins, go to the metal tables and chairs to the left. A 
  phone is on one of the tables.
  Climb through the house window, and enter the bedroom. The phone is next to 
  the bedside lamp.
  Cross the rooftops, and drop down onto a lower roof. There will be an 
  ammunition crate to the left. Continue into the building to find a phone 
  directly in front of you.
  Jump across a gap, and enter into the house. Go through the open green doors. 
  Go to the top of the large staircase in the next room. Look on the ground 
  before the hole to find a phone.