2009/1/27 Singh Vanitha-A21139 <[email protected]>: > Hi, > I am trying to implement UAS Challenge scenario for mid-dialog requests. > The scenario is as below - > > > UAC UAS > <------- Call established -----------> > INVITE-------------------------------> > <----------------------------------401 > ACK----------------------------------> > UPDATE -----------------------------> > <-----------------------------------403/401/200? > > What is the expected UAS response to UPDATE request, given that UAS was > expecting > INVITE with credentials?
The UAS *MUST NOT* expect an INVITE with credentials after replying 401 for an INVITE with no credentials. In fact, the UAC could send the re-INVITE directly with the credentials used in the first INVITE (initial request) and the UAS could accept it (depending in the Digest policy and options). This is: when a UAS receives a request with credentials, it's not needed at all a previous request with no credentials. In your case, the UPDATE should be treated as a normal in-dialog request by the UAS. Regards. -- Iñaki Baz Castillo <[email protected]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
