Radiohobby.nl

I have a new server called newburycbclub which is working as when I goto other servers it works and I can hear people talking. when I try to use my server it will not go in. I did have the mic on the computer and a sound output and I know I can talk and listen on other servers. I am trying to work out what my outbound server number is to get this other computer going. Could someone help me please.