service
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... VPIM directory Schema (VPIMDIR) is accessed from outside the
enterprise or service provider domain using the recipient's telephone
number.
...
... latency element of the messaging
service. Further, retrieval of the confirmation information may
require the return of a spoken name segment of up to 20kbytes (5
...
...
A service provider's namespace is expected to include entries for
tens of millions of subscribers ...
... domain_name. A large
corporation may have a hundred-thousand entries, while a large
service provider may have tens of millions of entries in a single
domain. It is expected that there will be a single public address
...
... validation service for a given service provider's network. It is
believed that existing directory technology, including horizontal
...
... need. The only fundamental, new requirement this application imposes
on directory servers, beyond similar existing services, is the
ability to return the recipient's spoken name. Preliminary
investigation suggests that storage and retrieval of a spoken name
...
... fail-over to a secondary
server and may require the directory server to be implemented as a
high-availability service.
...
... security issues.
1) Service provider customer information is very sensitive,
especially in this time of local phone competition. Service
providers ...
... Service provider customer information is very sensitive,
especially in this time of local phone competition. Service
providers require maximum flexibility to protect this data.
Because of the dense nature of telephone number assignments, this
...
... active messaging
subscribers. To reduce the value of this retrieved data, service
providers may limit disclosure of data that is useful for
telemarketing, such as the textual name, and may disclose only
information useful to the sender ...
...
3) The LDAP directory service needs to be secured properly for this
intended use. [LDAPAUTH] describes a number of considerations
...
... intended use. [LDAPAUTH] describes a number of considerations
that apply in this use. In particular, this service provides
unauthenticated, public access to directory data, and as such, it
is vulnerable to attacks ...
... Telephone Network and ISDN Operation, Numbering, Routing and Mobile Service - Numbering Plan for the ISDN Era. ...
... Messaging Alliance (TMA) for their
early work in pioneering a shared directory service for voice
messaging and their continuing efforts to apply that work to this
effort.
...