[Users] symmetric firewall without nat

Hi! In our organization there are many subnets with public-ip-adresses that are behind stateful-firewalls that prevent incoming connections from outside. If the clients are in two different protected subnets, they won't be able to communicate without an rtpproxy. Unfortunately since there is no NAT involved, the nat_uac_test() won't be useful. Is there any other way for the server to detect that an rtpproxy has to be used? Is there a way for the clients to detect it and report it to the server? Thanks in advance, --leo -- ----------------------------------------------------------------------- Alexander.Bergolth (at) wu-wien.ac.at Fax: +43-1-31336-906050 Zentrum fuer Informatikdienste - Wirtschaftsuniversitaet Wien - Austria