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.