What you need to know about cell phones
When you dial 9-1-1 from a cell phone, the coordinates that appear on the dispatcher’s screen are very different from those that appear when you dial 9-1-1 from a land line.
A land line sends the 9-1-1 dispatcher the real address where the phone is plugged in, along with the associated name and phone number.
With a cell phone, geographic data (longitude and latitude) appear on the dispatcher’s screen, showing where the caller is within 10 to 1,200 metres, based on the global positioning system (GPS), triangulation technology and signal strength.
Canadian Radio-television and Telecommunications Commission (CRTC) - Location of calls made from cell phones
©2004-2013, All rights reserved. Service de police de la Ville de Montréal. | Legal notice
This site is optimized for a screen resolution of 1280 x 1024 pixels.