Hello again, I saw that contact in my previous mail is removed by "[EMAIL PROTECTED]" :)
I mean that contact in 301 has "Naa" as user name and "BB.host" as IP address. Thanks MD -----Original Message----- From: Scott Lawrence [mailto:[EMAIL PROTECTED] Sent: Thursday, April 14, 2005 3:37 PM To: Masha Dorfman Cc: [email protected] Subject: Re: [Sip-implementors] redirection and authentication interwork On Thu, 2005-04-07 at 12:41 +0300, Masha Dorfman wrote: > Hello, > my question regards authentication dialog during redirected call. > (sorry, if it was already discussed, I didn't find something about this > scenario) > > Let's say there are two servers AA and BB. AA is registered and client sends > to it INVITE. Now AA redirects the call to BB. > Question 1. Should BB also be registered as separate target with own > credentials? Or maybe it depends on Client? > Generaly I don't see why it should be - New target address is found by AA, > Client sends Invite so it doesn't ask about authentication on this stage. > > Now Client sends INVITE to BB. Neither AA no BB ask authentication and BB > receives INVITE. Call is established. After P&C dialog BB sends REFER to > Client. > Here Client answers with 407. > Question 2. What credentials should be used by BB? Can it be AA credentials? The 407 will contain a 'realm' attribute - it should be the credentials that match that realm. -- Scott Lawrence, Consulting Engineer Pingtel Corp. http://www.pingtel.com/ +1.781.938.5306 x162 or sip:[EMAIL PROTECTED] _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
