I just inspected the open ports of my server and found, that open xchange has two open listening ports to the internet, and I can't explain what these are for. Can anybody tell me, what the purpose of these are?

Aktive Internetverbindungen (Nur Server)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode       PID/Program name
tcp6       0      0 :::49478                :::*                    LISTEN      110        9428671     14049/java      
udp6       0      0 :::43882                :::*                                110        9427675     14049/java
Thanks in advance