It does look like a cell phone, and it operates like a cell phone..it really isn't.It is a digital trunking business radio with telephone interconnect, and operates in the business/industrial part of the 800 MHz spectrum (851-866 MHz).The "new" numbers start at 440, so 851.0250 MHz is now channel 440.
This is shown graphically here: Well, depending on what you listen to, it might work.
If you listen to EDACS or LTR (or conventional), you will just need to reprogram the new frequencies and logical channel numbers.
This results in lower signal strength over a wide coverage area.
Nextel and other ESMR systems use a "low site" or cellular type architecture, with many base stations installed on 1-3 story buildings and 30-50 ft monopoles to create high signal density and greater user capacity over their coverage area.
Nextel, contrary to popular belief, is not a cellular telephone company.
They operate an "Extended (or Enhanced) Specialized Mobile Radio" service (ESMR).Since all 800 MHz channels are paired, the input or mobile side will be similarly reorganized as shown in the graphic.) Before rebanding, Public Safety, Business/Industrial, SMR and ESMR's both operate in the 851-861 MHz range.ESMR has exclusive use of the 861-866 MHz range, and Public Safety has exclusive use of the 866-869 MHz range.Rebanding should not be confused with Narrowbanding.When the 800 MHz band was originally created, two segments of the spectrum were set aside for Cellular Telephone (mobile and base).860-861 MHz is designated as an "Expansion Band", and 861-862 MHz is designated as a "Guard Band".