[Buildingdata] Re: Extension number

[Simon Grant]

Hi Alex

Seems to me that what you *really* need is to have a clearer concept
of something like a Telephone Equivalence Class -- which could be the
same as a local network, but defined differently.

The definition of a TEC might be that for all phones within that TEC,
the dialling rules are the same to any other phone anywhere, local or
global. Also, the rules for dialling any phone in that TEC are the
same, with appropriate change of local (or "extension") number.

Then give that TEC a URI. At that URI, you could hold the rules for
obtaining any other TEC from that TEC, or indeed rules for obtaining
that TEC from any other one, in some standard format ... hmm ... I can
see why RFC 3966 says "Globally unique numbers are unambiguous
everywhere in the world and SHOULD be used." :)

Doing less this might not be worth the trouble.

Simon

On 14 January 2013 10:13, Alexander Dutton <alexander.dutton at it.ox.ac.uk> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi all,
>
> At the moment we have
> <|http://vocab.ox.ac.uk/ad-hoc-data-ox/oxfordExtensionNumber> for
> internal telephone extension numbers. Is it worth generalising to
> oo:telephoneExtension, with the network being encoded in the datatype
> (like skos:notation)?
>
> e.g.:
>
> <#alex> v:tel <+441865613483> ;
>   oo:telephoneExtension
> "13483"^^<https://data.ox.ac.uk/id/notation/extensionNumber> .
>
> Or:
>
> <#alex> oo:telephoneExtension [ a vcard:Voice ; rdf:value "13483" ;
> oo:telephoneNetwork <#network> ]
>
> Some extensions aren't on the public phone network, so we can't really do:
>
> |||<#alex> v:tel <+441865613483> .
>
> ||||||<+441865613483>|| oo:telephoneExtension ||
> |||[ rdf:value "13483" ; oo:telephoneNetwork <#network> ]| |
>
> Our phone directory lists about three networks (what with the
> hospitals), and tie lines between them. With a bit of craftiness this
> could be encoded, allowing clever agents to present the right tie prefix
> to users. ([ a tie:TieLie ; tie:from <#uni> ; tie:to <#hospital> ;
> tie:prefix "123" ])
>
> Yours,
>
> Alex
> |
>
> - --
> Alexander Dutton
> Linked Open Data Architect, Office of the CIO; data.ox.ac.uk, OxPoints
> IT Services, University of Oxford, ℡ 01865 (6)13483
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-- 
Simon Grant
+44 7710031657
http://www.simongrant.org/home.html