Hi, >I am looking for a specific answer here: > >Lets say user calls A user B. >Now a B2BUA resides in between. >userA -> B2BUA >B2BUA->User B > >will Both these legs be on different dialog id's.
They MAY be. There is nothing forbidding a B2BUA to also act as a proxy, and use the same dialog id's on both legs. >What headers can B2BUA change? Whatever headers it wants to. There is no specification saying what a B2BUA is allowed to do - it can basically do anything a proxy is not allowed to do. >What about the response on way back...User B to User A...Does B2BUA reconstruct the origional Dialog ID. The response must be on the same dialog as the request, so if the B2BUA does dialog mapping for the requests it also needs to do it for the responses. Regards, Christer > --- varun <[EMAIL PROTECTED]> wrote: > > > Appreciate your help on this too!! > > > > --- varun <[EMAIL PROTECTED]> wrote: > > > > > Can somebody please answer this?? > > > > > > Thanks > > > varun > > > --- varun <[EMAIL PROTECTED]> wrote: > > > > > > > So that means that a B2BUA modifies the dialog > > ID. > > > > user A-> B2BUA...one dialog > > > > B2BUA->B ..another dialog > > > > > > > > So when response from User B is send to A, A > > gets > > > > response on the same dialog ID or on a different Dialog ID. > > > > > > > > Also, can somebody explain 3rd party call > > control > > > by > > > > B2BUA? > > > > > > > > --- Annadanesh Sankadal > > <[EMAIL PROTECTED]> > > > > wrote: > > > > > > > > > 100 trying is a response..typed it by > > mistake.. > > > > > > > > > > -danesh > > > > > > > > > > -----Original Message----- > > > > > From: [EMAIL PROTECTED] > > > > > > > > [mailto:[EMAIL PROTECTED] > > > > On > > > > > Behalf Of Annadanesh > > > > > Sankadal > > > > > Sent: Thursday, April 26, 2007 9:20 PM > > > > > To: 'varun'; [email protected] > > > > > Subject: Re: [Sip-implementors] B2BUA Queries > > > > > > > > > > Hi, > > > > > > > > > > 1> I am not clear about the differences > > between > > > a > > > > > B2BUA and stateful proxy.Can somebody explain > > > the > > > > > difference? > > > > > > > > > > --- AFAIK, B2BUA basically is used to hide > > the > > > > > network topology. > > > > > It reformulates the requests it gets. If u > > > > have > > > > > 2 Endpoints ( say EP1 > > > > > and EP2 ) and a B2BUA each of the > > endpoinds > > > > will > > > > > actually talk to B2BUA. > > > > > > > > > > That means you will have 2 call-legs i.e > > > > > EP1-->B2BUA and B2B--->EP2. > > > > > > > > > > > > > > > 2>Can a stateful proxy generate requests on > > its > > > > > own...what kind of requests? > > > > > > > > > > --- Yes..100 Trying is the classic example for > > > > this. > > > > > And also Cancel > > > > > requests will be generated when it forks the > > > call > > > > to > > > > > multiple location > > > > > > > > > > -danesh > > > > > > > > > > -----Original Message----- > > > > > From: [EMAIL PROTECTED] > > > > > > > > [mailto:[EMAIL PROTECTED] > > > > On > > > > > Behalf Of varun > > > > > Sent: Thursday, April 26, 2007 6:29 PM > > > > > To: [email protected] > > > > > Subject: [Sip-implementors] B2BUA Queries > > > > > > > > > > Hi, > > > > > 1> I am not clear about the differences > > between > > > a > > > > > B2BUA and stateful proxy.Can somebody explain > > > the > > > > > difference? > > > > > > > > > > 2>Can a stateful proxy generate requests on > > its > > > > > own...what kind of requests? > > > > > > > > > > 3> what is meant by third pary call > > control..any > > > > > examples? > > > > > How does a B2BUA support that! > > > > > > > > > > Thanks > > > > > Naveen > > > > > > > > > > > > > > > > > > > > > > > __________________________________________________ > > > > > Do You Yahoo!? > > > > > Tired of spam? Yahoo! Mail has the best spam > protection around > > > > > http://mail.yahoo.com > > > > > > > _______________________________________________ > > > > > Sip-implementors mailing list > > > > > [email protected] > > > > > > > > > > > > > > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > Sip-implementors mailing list > > > > > [email protected] > > > > > > > > > > > > > > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > > > > > > > > > > > > > > > > > > > > > > > > > __________________________________________________ > > > > Do You Yahoo!? > > > > Tired of spam? Yahoo! Mail has the best spam protection around > > > > http://mail.yahoo.com > > > > _______________________________________________ > > > > Sip-implementors mailing list > > > > [email protected] > > > > > > > > > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > > > > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Tired of spam? Yahoo! Mail has the best spam protection around > > > http://mail.yahoo.com > > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam protection around > > http://mail.yahoo.com > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection > around http://mail.yahoo.com > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
