Here is a website that offers the requirements of the NEXTEL/SoLinc iDEN phones:

http://www.southernlinc.com/pdfs/RebandingPhoneDecis ... »

This will occur over the next 2 to 3 years as the spectrum is shuffled. The current plan by region is the following:

Region 1 - West Coast of US and NY areas
Region 2 - Mid-West and rest of the NE
Region 3 - Southeast US
Region 4 - Bordering areas of Canada & Mexico

Details of re-banding and more details on the Regions can be found here:

http://www.800mhzrebanding.com/text/Tilles%20TA%20Wa ... »

Let me know if you need any fill.

Mark