From experiences of the past cases, it can be indeed problematic with
some client. But can be done as Alex said.
I just wanted to add a bit about how I preferred to do it when I had to.
I try to auth only caller always, as it was for initial INVITE. The way
to do it is to append from tag to re
Clearly, you can only authenticate sequential requests corresponding to calls
whose initial requests were subject to authentication. If the initial request
was not authenticated, there is no reason to believe that the endpoint would
support authentication of sequential requests.
As to whether y
