Just wanted to add to a previous post....
Old post:
\\ I have a "soft" modem (DLL) that can run in any PPC application process
\\ space and uses the audio connector of the PPC. When any type of cell
phone
\\ with a head set jack is connected to the PPC's audio jack you can send and
\\ receive data. It is slow but it can send and receive application data,
say
\\ GPS location info in about 2 seconds. It is pretty cool works over any
cell
\\ phone carrier's network without them knowing it. Of course you need the
\\ same type of modem running on another PPC/cell phone or PC with a land
line
\\ to have something to talk to on the other end of this pipe.
and to add, it is faster than SMS, it will also work cell phone to cell
phone, or cell phone to land line phone, between a CDMA carrier and GSM
carrier. The modem I am talking about is independant of the type of phone or
carrier, it will work with any combination, you just need to have this modem
on both ends of the phone call. Also their is a much larger network coverage
for the voice call than the "data ready" coverage, and you can roam from one
network to the next with out effecting the modem, it will still work with out
having to restart the connection, because it is using the voice channel.