M.Hockings wrote:
Dumpolid Exeplish wrote:
It is true what Eric and Steve have said, you do need a licensed GSM
frequency to operate and sell GSM services (even for rural areas).
however, this link might be of interest to you
http://rfdesign.com/mag/radio_field_trials_allsoftware/
That is more what I was thinking of but it is still a cell provider type
of hardware. In my mind I was thinking of something very low powered
and turning off the roaming, etc on the phone so they only work with the
one base. Think single cell base-station transceiver that can talk to
a cell phone and turn it into a sip conversation to Asterisk. Here in
Canada, and back years ago, when I worked with radio I think the law was
something like less than 100mw of input power didn't require a license.
However, with the advent of cell phones that could very well not be the
case in those bands. But one never knows...
In any case I'll probably lean towards something like the Engenius
wireless phones.
http://www.engeniustech.com/telecom/products/details.aspx?id=107
Those things are somewhere around US$500
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