I don't think it's possible without a repeater -- so you'll
need service from somewhere. The PTT mode is not a direct
unit-to-unit service.

Michael Kennedy wrote:
I read somewhere that you could PTT phone to phone without service on their
new phones. I know this is not true with the older models. If this is true
how does it work? Does it run in the 900mhz band that the phone usually
uses or does it run on FRS frequency ~400mhz? or something else?