I was considering this avenue as well. Would be something between good and perfect, but the cost is prohibitive :(
Also, there are security concerns with multi-purpose devices, as they are more complicated and more prone to exploitation; secure devices should have as few functions as possible without impairing the usability. Another concern is the ease of use. PDA interface is for high-tech-skilled users. A secure telephone shouldn't be significantly more difficult to use than a standard telephone. If a device has to be mass-accepted, it has to be simple and cheap. Which is why I look for cores for embeddable computer cores, like the PXA one. Thanks a lot for the suggestion, though. Implementations running on Zaurus could be a way to cover another segment of the secure telephony market. :) On Wed, 7 Jan 2004, [EMAIL PROTECTED] wrote: > > A much better choice would be a Sharp Zaurus C860... see specs here: > > http://www.dynamism.com/zaurus/ > > Has 64 meg of RAM, a CPU as fast as the one mentioned below, and a Linux > distro based on Debian..... also built in standard 2.5mm headphone out > and an EXTERNAL mic in.... hard to imagine a better platform for > SpeakFreely. > > If you want to get fancy, throw in a small form factor CF bluetooth card > (the 860 has a CF slot) and you could bond to a Bluetooth cellphone.... > Speakfreely without wires :) > > Moe > > Thomas Shaddack wrote: > > > http://www.hw-server.com/test/sld_hws.html > > Take a look at the DIMM modules. > > > > Looks like a good candidate for a battery-powered portable VoIP/GSM > > encrypted cellphone. Add a GPRS modem or a cellphone (or, for landline > > version, a modem), a small display/keyboard, and eg. SpeakFreely with > > suitable session key handshake, stir, serve warm. > > > > Does it look like an usable way to have open and reasonably cheap > > ($160+cellphone+some parts around) portable secure telephone platform? > > Does anybody here have any experience with embedded computer hardware, > > who could confirm or deny this kind of hardware as bearing hope for this > > application?
