Thursday, November 3, 2011
Citizens' Police Academy Finale
For the final session of the citizens’ police academy, we learned about the communication center. Callers can be located when they call 911 from land lines or cell phones. The one problem is voice over IP (VoIP). If someone moves and doesn’t change the physical address in the VoIP account there is no way to find the new location when 911 is called. As an example if someone moves from Denver to San Francisco without changing the address, a 911 call will be picked up in Denver and not San Francisco. When a 911 call comes in from a cell phone, a signal can be sent back to the cell phone to triangulate its location if the cell phone is on and the battery is operational. One of the problems with cell phones is that the communication gets many false 911 calls when the call is accidently activated from a pocket or purse. The dispatcher has to listen carefully to determine if this is an accidental call or has been placed by someone who doesn’t want a perpetrator to know that a call has been placed.