> P.S. How many folks out there have phones (hard or soft) from which they can > place calls to other random SIP endpoints? (I do, but also realize I'm in a minority.) The only reason that the average corporate desktop phone can make long distance calls to anywhere in the world is that their local PABX supports routing those calls. In the same way, any arbitrary SIP phone (hard or soft) can also make calls to arbitrary SIP endpoints if they are connected to a SIP PABX that supports routing the calls. See <http://www.asterisk.org> for the leading open-source SIP PABX software. Even if the IETF needs something that Asterisk can't do today, it would be wise to implement it anyway so that Asterisk developers can see the need. --Michael Dillon _______________________________________________ Ietf@xxxxxxxx http://www.ietf.org/mailman/listinfo/ietf