How to detect devices seeking http://en.wikipedia.org/wiki/WISPr XML feed?
I am guessing there should be some sort of the request that is standardised. Though, I managed to uncover that iPass itself is passing iPassConnect
rather than anything that would contain WISPr in it.
Wispr and GIS are different protocol, today, over 20 access gateways support the GIS with iPass:
More information here http://www.pcca.org/standards/architecture/ipass_pwlan.pdf