Hi John, you are essentially suggesting to use an identifier like [EMAIL PROTECTED];user=phone whereby example.com corresponds to the domain that operates the authentication service?
Ciao Hannes Elwell, John wrote: > Ernst, > > In a separate message on this list earlier today I suggested email-style > along with TEL URIs. The latter would be used when interworking with > PSTN and would allow number portability to be achieved. > > Also, for enterprises email-style still gives number portability - an > enterprise would keep its domain name even when changing the SIP > carrier. Admittedly that model doesn't work for an individual user that > relies on the carrier's domain. > > John > > >> -----Original Message----- >> From: Horvath, Ernst >> Sent: 20 February 2008 10:53 >> To: Elwell, John; [EMAIL PROTECTED]; Henry Sinnreich >> Cc: IETF SIP List; [EMAIL PROTECTED]; Richard Shockey >> Subject: RE: [Sip] Infrastructure issues involving e164 numbers >> >> John, >> >> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >>> Behalf Of Elwell, John >>> Sent: Wednesday, February 20, 2008 11:13 AM >>> To: [EMAIL PROTECTED]; Henry Sinnreich >>> Cc: IETF SIP List; [EMAIL PROTECTED]; Richard Shockey >>> Subject: Re: [Sip] Infrastructure issues involving e164 numbers >>> >>> Hannes, >>> >>> I know the questions were directed at Henry. However, if I may >>> intervene: >>> >>> [...] >>> >>> Let's concentrate on the end-to-end SIP case and provide a >>> good security >>> solution for that. One possibility might be to use >>> email-style URIs for >>> that. >>> >> Unfortunately email-style URIs make identity portability >> harder. Number portability is a regulatory requirement in >> many countries and solved for E.164 numbers. I can imagine >> that regulators might require an equivalent feature from SIP >> providers. >> >> Ernst >> >> >>> John >>> >>> _______________________________________________ Sip mailing list http://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
