Calls from cellular type phones now exceed 50% of the total call volume in most 9-1-1 Centers. Phase II wireless allows the 9-1-1 center to receive the actual location of the caller on most calls. See http://www.fcc.gov/911/consumer.html for more information about wireless 9-1-1.

Alabama 9-1-1 Deployment Map Wired and Wireless Status UPDATED 2/13/2009 Always check with the City or County Emergency Communications District if there is any doubt.

• Alabama Wireless Board Main Source of Wireless Info
  Distributes 9-1-1 revenue from wireless phones and administers the cost recovery fund for carriers.
  • Example of how one cell phone's 9-1-1 charge of 70¢ is distributed to all the ECDs around the state. <View Distribution Example> This is a relatively large file and will take a few seconds to download.
     
• Phase II Solutions by Company

  Company	PII Solution
  Alltel	Handset
  AT&T	Network
  Cellular South	Handset
  Cingular	Network
  Corr Wireless	Network
  Farmers Cellular	Combo
  Nextel	Handset
  Pinebelt Cellular	Network
  Public Service Cellular	Handset
  Southern LINC	Handset
  Sprint	Handset
  T-Mobile	Network
  Unicel	Network
  Verizon	Handset

• FCC 9-1-1 Site http://www.fcc.gov/911/
   
• Lat-Lon Tutorial - Do you need a good explanation of Phase II and how location using latitude and longitude work. This is a WORD .DOC courtesy of Bill Marczak from BellSouth. May 5, 2003
   
• BellSouth's Phase II Tariff - March 12, 2003
   
• FCC Public Notice 02-296
  FCC clarifies that 9-1-1 call-forwarding rule does not preclude wireless carriers from blocking fraudulent 911 calls from non-service initialized phones pursuant to state and local law
   
• FCC E9-1-1 Web Site - Reports and Orders, Press Releases and other Info
   
• BellSouth Wireless Web Site
  Good information with diagrams describing call delivery methods as well as Phase I / II explanations.
   
• FCC Ruling on Valid Phase II Requests
  What must a PSAP do to have a valid request for Phase II service?
  Released October 17, 2001 <pdf version>
   
• BellSouth Phase II ALI Data Format - 5/17/2001
  • REVISION of 73528 that adds wireless XY coordinates to ALI data stream.  (MS Word File)
     
• BellSouth Tariff Filings - What is pending before the PSC?
• Simplified Phase II Schedule - Excerpted from the FCC Order
  
• Dispatch Monthly Wireless Resources
  Large number of links and resources, explanation of Phase I & II
   

Check these explanations for a simplified view of two methods of locating mobile devices. This is FCC Phase II and will help locate wireless callers.

• GPS based 
• Triangulation based