During the US ENUM forum discussions we spent a considerable amount of time
on the issue of whois. It was agreed that a whois like process for ENUM
would not be acceptable in today's privacy concerns. The details of the
recommendation starts at section 9.5. Also, by providing a whois at the
tier 0 completely undermines the sovereign decisions of each nation on how
to handle personal identifiable information.
my understanding of the proposal for this temporary directory (to
facilitate interoperability tests amongst national trials and across
national borders) was that it is #1 clearly opt-in on the Tier1 level
and #2 the data set is minimal. Especially no prejudice whatsoever shall
be taken whether or how such a whois/directory service will be deployed
on a permanent basis.