2008/8/16 Valentin Nechayev <[EMAIL PROTECTED]>: >> - Is legal for a B2BUA to change completely the "From" in the second leg?: > > Yes. Really, B2BUA can do *anything* which doesn't break its > functioning. That's why there is no standards for it.
Ok. >> - Can be problems if B2BUA copies in leg 2 the same "Call-Id" and "From_tag"? > > Yes, it's roughly incorrect. It can copy call-id, but MUST create > new tag, because it creates new dialog. If it were keep dialog > unchanged, it would be named "proxy", not "B2BUA". Well, even if two B2BUA legs (two independent but connected dialog) share From tag it's still a B2BUA, not a proxy, since the B2BUA can redirect leg A to other destination (as you said). Thanks a lot for your reply. -- Iñaki Baz Castillo <[EMAIL PROTECTED]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
