[Serusers] Session-Expires Header

[Jan Janak]

On 09-03 14:59, Nils Ohlmeier wrote:
> >   You can test for an INVITE coming from cisco and set an onreply_route.
> >   In the onreply_route you can do something like:
> >
> >   if (status =~ "2[0-9][0-9]") {
> >   	remove_hf("Session-Expires");
> > 	append_hf("Session-Expires: 120;refresher=UAC\r\n");
> >   };
> 
> But that is actually a vialoation of the Session-Timer draft: the proxy is not 
> allowed to change (or add) the refresher in the Session-Expires header. Just 
> adding a Session-Expires header to the reply, if it is not present, should be 
> sufficient for any implementation which is fully compliant to the latest 
> Session-Timer draft.

  As I said this is the approach that works with cisco gateways. I have
  no idea what is the latest revision of the draft and I do not think it
  really matters here, becuase the communication between the proxy and
  the gateway is all internal.

  This is one particular example that works with cisco, nothing less
  nothing more.  
    
    Jan.

> Greetings
>   Nils
> 
> >   which "emulates" session-timer support in the user agent that sent 200
> >   OK. After receiving such a reply, the cisco gateway would keep sending
> >   re-INVITEs.