I'm trying to use the SST module, but the system never set the timeout to the value of the Session-Expires Header. There is no error being shown, even with debug=9. Using opensipsctl fifo dlg_list, the value of the parameter timeout is always in the default value. All flags were set and the timeout_avp(i:4042) is set to both modules SST and DIALOG. The dialog is matching ok. I have checked everything I could. If I drop the network cable, the dialog stays active for the default timeout 43200. It never assumes the value of the Session-Expires. I tried setting the value in the uac, uas and in the proxy itself.