Add jitsi udp port range

src/freedombone-app-jitsi

 
     # remove videobridge
     firewall_remove ${VIDEOBRIDGE_PORT}
+    firewall_remove "10000:20000"
     apt-get -yq remove --purge jitsi-videobridge jicofo jitsi-meet jitsi-meet-prosody
     if [ -d /etc/jitsi ]; then
         rm -rf /etc/jitsi
         exit 63983
     fi
     firewall_add videobridge ${VIDEOBRIDGE_PORT}
+    firewall_add_range videobridge 10000 20000 udp
 
     # meet
     debconf-set-selections <<< "jitsi-meet jitsi-meet/cert-choice multiselect 1"