jim bell wrote:
And as you pointed out, this is especially important if RF is the medium-of-choice for connections. We should definitely make a serious amount of contact with people working on the PCS standards to ensure that GOOD encryption is included.
If by PCS you mean the GSM derived 2GHz system, then I believe that they use the A5 algorithm, the same as GSM. Unless they are using one of deliberately crippled versions, then I think you'll find that this is quite tough stuff. Seeing as the rest of the planet seems to have gone with GSM 900, it's a shame you guys didn't do likewise, you'd have had proper international roaming and decent airlink encryption for years by now ;) As a semi-aside, I'm not sure if anyone here has mentioned it yet, but the DCS 1800 (another GSM variant) based "Orange" UK cellphone operator, recently announced that they have linked their MSC direct with the Demon ISP (biggest UK ISP), so that you can now get a 9600 baud encrypted pure digital Internet link. It's not exactly as cheap as a local call, and 9600 baud isn't exactly flying, but ... Andy M PS Ok then, maybe I _am_ biased towards GSM, see .sig ;) -- Andrew Meredith Senior Systems Engineer Tel: (direct) +44(0) 1793 545377 Network Engineering Tools Group Tel: (main) +44(0) 1793 541541 Motorola, GSM Products Division Fax: +44(0) 1793 512618 16, Euroway, Blagrove SMTP: meredith@ecid.cig.mot.com Swindon, SN5 8YQ, UK X400: Andrew_Meredith-QSWI016@email.mot.com