/I think your best and safest bet would be to find a conference server /> >/that can use a proxy. /> I don't understand what you mean, this looks self evident to me.
What I mean is: is the conference server that you want to use configurable so that it does not open a set of UDP sockets, but instead connects to a proxy server you specify (address, port and password) ?
If so, just configure it to connect to one of the proxies you run in elproxy on the same machine and there will be no issue and no uncertainties.
Of course, when it works directly on a set of UDP ports without disturbing the proxies and relays running on the wildcard socket on the same machine, that is fine as well.
Rob