diff --git a/services/jitsi/deployment.yaml b/services/jitsi/deployment.yaml
index 0840320..cda62a3 100644
--- a/services/jitsi/deployment.yaml
+++ b/services/jitsi/deployment.yaml
@@ -108,6 +108,7 @@ spec:
             - |
               set -euo pipefail
               cp /custom-config/custom-jvb.conf /config/custom-jvb.conf
+              cp /custom-config/sip-communicator.properties /config/sip-communicator.properties
           volumeMounts:
             - { name: cfg, mountPath: /config }
             - { name: jvb-custom, mountPath: /custom-config }
diff --git a/services/jitsi/jvb-configmap.yaml b/services/jitsi/jvb-configmap.yaml
index d327a9e..b86d649 100644
--- a/services/jitsi/jvb-configmap.yaml
+++ b/services/jitsi/jvb-configmap.yaml
@@ -15,3 +15,7 @@ data:
         }
       }
     }
+  sip-communicator.properties: |
+    org.ice4j.ice.harvest.DISABLE_TCP_HARVESTER=false
+    org.jitsi.videobridge.TCP_HARVESTER_PORT=4443
+    org.jitsi.videobridge.TCP_HARVESTER_MAPPED_PORT=4443