diff --git a/hosts/aluminium/services/asterisk.nix b/hosts/aluminium/services/asterisk.nix
index bdbdfe4..2f03b34 100644
--- a/hosts/aluminium/services/asterisk.nix
+++ b/hosts/aluminium/services/asterisk.nix
@@ -166,4 +166,31 @@ in
     [ -L "$sounds_de" ] && rm "$sounds_de"
     ln -s "${pkgs.asterisk-sounds-de}/" "$sounds_de"
   '';
+
+  systemd.services."asterisk-reload-endpoint@" = {
+    description = "Check if asterisk endpoint is identified and reload it when it is not.";
+    serviceConfig = {
+      Type = "oneshot";
+    };
+    environment = {
+      ENDPOINT = "%I";
+    };
+    script = ''
+      export PATH=${pkgs.lib.makeBinPath [pkgs.asterisk pkgs.gnused pkgs.gnugrep]}
+      if ! asterisk -r -x "pjsip show endpoint $ENDPOINT" | sed -n '/^===/,/^\s*ParameterName/{//!p}' | grep -q 'Identify:'; then
+          asterisk -r -x "module reload res_pjsip_endpoint_identifier_ip.so"
+      fi
+    '';
+  };
+
+  systemd.timers.asterisk-reload-endpoint = {
+    description = "Check if asterisk endpoint is identified and reload it when it is not.";
+    after = [ "asterisk.service" ];
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      Persistent = true;
+      OnCalendar = "*-*-* *:*:00";
+      Unit = "asterisk-reload-endpoint@sipgate.service";
+    };
+  };
 }