I was wondering a few things regarding using GSM modems.
If you have let's say ten units spread out over the country, can they all be under one account, or do they need to be individual? From what I have read about these devices the cellular networks view these modules as standard cell phones, and normal rates apply, which in this case stinks as these modems may be used for maybe 5 times a day, for no more than five minutes each time. It would be very costly to pay full price for something that is not used very much.
Second, I am waiting to hear back from Sierra networks about a service they offer, but I was wondering if anyone knows of a cellular network that is geared to what I explained above? Simple, low traffic sporadic data only transmissions?
Lastly, if I have two AVR, devices in different locations, and I want device A to access device B, is this done through a conventional calling process(lice a cellular telephone), or is it done through TCP/IP? And if /IP does this mean that both devices will have to have their own static IP address?