diff --git a/project.clj b/project.clj
index 0e94e64..b5ac68d 100644
--- a/project.clj
+++ b/project.clj
@@ -24,9 +24,9 @@
                        :main dda.c4k-jitsi.uberjar
                        :uberjar-name "c4k-jitsi-standalone.jar"
                        :dependencies [[org.clojure/tools.cli "1.1.230"]
-                                      [ch.qos.logback/logback-classic "1.5.16"
+                                      [ch.qos.logback/logback-classic "1.5.17"
                                        :exclusions [com.sun.mail/javax.mail]]
-                                      [org.slf4j/jcl-over-slf4j "2.0.16"]
+                                      [org.slf4j/jcl-over-slf4j "2.0.17"]
                                       [com.github.clj-easy/graal-build-time "1.0.5"]]}}
   :release-tasks [["test"]
                   ["vcs" "assert-committed"]
diff --git a/src/main/cljc/dda/c4k_jitsi/jitsi.cljc b/src/main/cljc/dda/c4k_jitsi/jitsi.cljc
index e62f6f9..5048583 100644
--- a/src/main/cljc/dda/c4k_jitsi/jitsi.cljc
+++ b/src/main/cljc/dda/c4k_jitsi/jitsi.cljc
@@ -40,7 +40,9 @@
     [(load-and-adjust-namespace "jitsi/prosody-config-serviceaccount.yaml" namespace)
      (->
       (load-and-adjust-namespace "jitsi/prosody-config-common-cm.yaml" namespace)
-      (cm/replace-all-matching "JITSI_FQDN" fqdn))
+      (cm/replace-all-matching "JITSI_FQDN" fqdn)
+      (cm/replace-key-value :STUN_HOST (str "stun." fqdn))
+      (cm/replace-key-value :TURN_HOST (str "stun." fqdn)))
      (load-and-adjust-namespace "jitsi/prosody-config-default-cm.yaml" namespace)
      (load-and-adjust-namespace "jitsi/prosody-config-envs-cm.yaml" namespace)
      (load-and-adjust-namespace "jitsi/prosody-config-init-cm.yaml" namespace)
@@ -87,6 +89,7 @@
      (-> 
       (load-and-adjust-namespace "jitsi/web-config-envs-cm.yaml" namespace)
       (cm/replace-key-value :XMPP_BOSH_URL_BASE (str "http://prosody." namespace ".svc.cluster.local:5280"))
+      (cm/replace-key-value :P2P_STUN_SERVERS (str "stun." fqdn ":443"))
       (cm/replace-key-value :ETHERPAD_PUBLIC_URL (str "https://etherpad." fqdn "/p/"))
       (cm/replace-key-value :WHITEBOARD_COLLAB_SERVER_PUBLIC_URL (str "https://excalidraw." fqdn))
       )
diff --git a/src/main/resources/jitsi/prosody-config-common-cm.yaml b/src/main/resources/jitsi/prosody-config-common-cm.yaml
index 8f0e06e..ea47cc1 100644
--- a/src/main/resources/jitsi/prosody-config-common-cm.yaml
+++ b/src/main/resources/jitsi/prosody-config-common-cm.yaml
@@ -22,4 +22,8 @@ data:
   ENABLE_XMPP_WEBSOCKET: 'true'
   ENABLE_RECORDING: "true"
   ENABLE_FILE_RECORDING_SERVICE_SHARING: "true"
-  TZ: 'Europe/Berlin'
\ No newline at end of file
+  TZ: 'Europe/Berlin'
+  STUN_HOST: STUN_FQDN
+  STUN_PORT: "443"
+  TURN_HOST: STUN_FQDN
+  TURN_PORT: "443"
\ No newline at end of file
diff --git a/src/main/resources/jitsi/web-config-envs-cm.yaml b/src/main/resources/jitsi/web-config-envs-cm.yaml
index b8386cb..c996e0f 100644
--- a/src/main/resources/jitsi/web-config-envs-cm.yaml
+++ b/src/main/resources/jitsi/web-config-envs-cm.yaml
@@ -12,9 +12,6 @@ data:
   JICOFO_AUTH_USER: focus
   XMPP_BOSH_URL_BASE: REPLACE_ME
   DEFAULT_LANGUAGE: de
-  RESOLUTION: "480"
-  RESOLUTION_MIN: "240"
-  RESOLUTION_WIDTH: "853"
-  RESOLUTION_WIDTH_MIN: "427"
+  P2P_STUN_SERVERS: REPLACE_ME
   ETHERPAD_PUBLIC_URL: REPLACE_ME
   WHITEBOARD_COLLAB_SERVER_PUBLIC_URL: REPLACE_ME
\ No newline at end of file
diff --git a/src/test/cljc/dda/c4k_jitsi/jitsi_test.cljc b/src/test/cljc/dda/c4k_jitsi/jitsi_test.cljc
index 364d778..4158399 100644
--- a/src/test/cljc/dda/c4k_jitsi/jitsi_test.cljc
+++ b/src/test/cljc/dda/c4k_jitsi/jitsi_test.cljc
@@ -47,7 +47,11 @@
            :ENABLE_XMPP_WEBSOCKET "true",
            :ENABLE_RECORDING "true",
            :ENABLE_FILE_RECORDING_SERVICE_SHARING "true",
-           :TZ "Europe/Berlin"}}
+           :TZ "Europe/Berlin"
+           :STUN_HOST "stun.xy.xy.xy",
+           :STUN_PORT "443",
+           :TURN_HOST "stun.xy.xy.xy",
+           :TURN_PORT "443"}}
          (second (cut/prosody-config
                   {:fqdn "xy.xy.xy"
                    :namespace "jitsi"}))))