Hi Andreas, > I see. So it's basically just a header (X-RTP-Stat) sent by the UAC in BYE, which is written to acc. I found the > corresponding paper to that "feature", see http://www.avm.de/de/Presse/Informationen/2005/pdf/Iptelorg_QoS-Spec.pdf Yea,, Sipura does the same :) -A