On 31 Dec 2008, at 15:18, Andrew Ruthven wrote:
On Wed, 2008-12-31 at 11:44 +1300, Jasper
How about I just tell you my "phone
number" is freddie(a)beer.com, your
software looks up "_sip._udp.beer.com. IN SRV", and places a call to
freddie at the server returned by that record. It's an optimised,
point-to-point connection, and it doesn't involve carrying over
antiquities like PSTN phone numbers.
Because that is a solution to a different problem. That says for a
domain, you can use SIP to contact some SIP endpoint (what happens
business? reception only?), whereas in ENUM you can have a number of
different technologies associated with a "phone number". For example,
SIP, H.323, email, IM, http, carrier pigeon roost, PSTN, etc.
No, I think it's the same problem. There's nothing stopping additional
SRV records being present to provide other contact methods. The
details of the functionality available to meet the requirements no
doubt differ, but the basic requirements are the same.
The problem space for businesses is surely identical to that of
residences, if you consider the core functionality to be "signal a
method to contact a particular person or role".
sip:email@example.com calls phones to ring on many peoples' desks; sip:firstname.lastname@example.org
just rings my phone. mailto:email@example.com sends mail in a way that
those same people can see it; mailto:firstname.lastname@example.org is for contacting
just me. If we concede that we are not yet living in the future and
hence need a "front desk number", no doubt we can think up a generic
role for that, info(a)isc.org or somehting.
Perspectives which start from the basis of "how do I establish a voice
connection to +1 519 670 9327" seem antiquated to me. Remove the
baggage, and it's "how has Joe signalled that I should contact him?"
The fact that we will no doubt need to maintain E.164 hooks into the
system for the benefit of people who can't use any identifier other
than a phone number does not mean that the directory service needs to
revolve around arbitrary numeric strings.