diff --git a/modules/element-calling.nix b/modules/element-calling.nix
index 3c3cd23..95e16a9 100755
--- a/modules/element-calling.nix
+++ b/modules/element-calling.nix
@@ -140,7 +140,8 @@ EOF
     };
   };
 
-  networking.firewall.allowedTCPPorts = [ 7881 ];
+  networking.firewall.allowedTCPPorts = [ 5349 7881 ];
+  networking.firewall.allowedUDPPorts = [ 3478 ];
   networking.firewall.allowedUDPPortRanges = [
     { from = 7882; to = 7894; }
   ];