Hi,
as you allready have a section for the providers (those behind voxalot from the users viewpoint) I would suggest to have another sticky section for the setup of telephones (voxalot's remote control) as there are not only softphones.
I would be able to show the setup of my SPA 941. For this phone e.g. one can find a very good
setup-website even if this is only in german and for other phones of Linksys (Sipura) too.
Carl