In our environment we have a firewall the network where the clients exist and the network where are OCS servers are located. We recently installed a mediation serverer that will be connected to a gateway on the same network as the mediation server. When configuring the mediation server we noticed a port range between 60000-64000 does this port need to be opened in our firewall between our clients and servers or when are these ports accessed?
Both clients and servers need access to it. When it is a single call the clients will connect directly to th mediation server. When in a conference, the mediation server will connect directly to the ocs mcus.