Hello,Did you get any more information on this topic?  I too have to integrate an ESI phone system with our Cisco network and looking for some information.Thanks!

You can do this with the BBSM. You would use the layer 3 approach and each VLAN would be considered a site.

I don't believe that you can do LEAP with a non-Cisco client. You can create another VLAN/SSID on your wireless network to support some other EAP method like PEAP which is supported with the XP supplicant. This will require you to install a server ...

If protocol on the frame-relay circuit is up then your lmi-type is correct. On the frame-relay interface, code IETF after the "frame-relay interface-dlci XXX" statement. Ex: frame-relay interface-dlci 588 IETF.