This is what I've been told: Nextel has their own system, which isn't shared with the others, even with Sprint, it's parent company (as of yet).So whats the deal with the Nextel stuff. Does it really work anywhere or is it anywhere there is service?
This I know for sure: Their phones only work in their system, and the coverage is similiar too that of other providers. It's just that sometimes they'll have signal where others don't, and visa-versa.
Almost, if not all, of their phones have the walkie talkie capabilities. A select few of their phones have the ability to talk to other Nextel phones via walkie-talkie where there is no signal. It's direct from one phone too the other. It's range is very limited. I think they advertised something like 7miles, but my experience has been it's only good for 2-3miles.
The reason I stick with them is the walkie talkie. Mine is an unlimited plan, it works good, it's coast to coast, and many of the people I know have it.
Other than that, their just like any other cell phone company, IMO.