> From: [email protected] [[email protected]] > > I have a query regarding the 486 Busy Here Message. > > Following is the scenario: > > A and B are the proxy servers > A1 is a phone on A and B1 and B2 and phones on B. > > A1 and B1 are on a call. > During the call A1 sends a REFER message to Proxy B which Refers to B2.
Is this REFER within the existing dislog between A1 and B1? > Proxy B sends a 202 Accepted to A1 A proxy cannot generate responses. > Proxy B sends an INVITE to B2. Here, you have the proxy acting as a user agent, which it cannot do. > B2 unfortunately is busy on another call and replies back with a 486 > Busy Here. > Proxy B receives the 486 Busy Here. > > Now my question: > > Can we tandem this "486 Busy Here" message received from B2 to B1. I see no reason why the 486 would be sent to B1, since it has nothing to do with any request that B1 generates. > Is this acceptable according to the standards? What call flow are you talking about? Dale _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
