On Sun, May 16, 2004 at 08:23:23AM +1000, Robert wrote: > > What sort of modems does one use for the kannel interface, and where does > one buy them? I presume "ordinary" modems don't do the job? >
GSM modems. They're just like ordinary modems in that they plug into a standard serial port for the most part, except that instead of plugging into a POTS line you stick a SIM card into them as you would any GSM mobile. I've tested a number of these GSM modems with Kannel, such as the Nokia 30, which Froogle gives me a link to an Australian site: http://www.mobilenetwork.com.au/pages/mobilepages/30.asp Seems to cost something like AU$618.45. Roughly the price of a medium-to-high end GSM handset, I think. I've also tried a few Wavecom GSM modems, and they seem to work pretty well with Kannel too. On a side note, I wonder if it would be possible to work out a landline SMSC system using Kannel, a plain modem, and a POTS line? > If I use a phone as a sending/receiving device, is the modem-connection via > IR just as suitbale, or Bluetooth for that matter? But then you'll have to make the IR or Bluetooth look like a serial device to Kannel. Personally, I haven't tried it, but I imagine doing it over IR shouldn't be much more difficult than standard RS-232, provided your irda support is up to spec, and your phone knows enough to do so. As for Bluetooth, I honestly have no idea. Frankly, I'd rather just shell out a few bucks for a data cable that plugs into the plain old serial port. No sense in further complicating matters if they can be made simpler with only a small effort.
