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
