diff --git a/undo_expose.sh b/undo_expose.sh
new file mode 100644
index 0000000..b9a1f11
--- /dev/null
+++ b/undo_expose.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+# === CONFIG ===
+# DB config
+DB_NAME="database_single"
+DB_USER="postgres"
+
+# Filenames
+ORIGINAL="voipms.pv.xml"
+CUSTOM="voipms-smscustom.pv.xml"
+
+# === SCRIPT ===
+
+echo "🔗 Reverting trunk model in database..."
+# This resets any trunk using the custom template back to the original
+sudo -u postgres psql -d "$DB_NAME" -c "UPDATE gateway SET model = '$ORIGINAL' WHERE model = '$CUSTOM';"
+
+echo "Database model reverted: $CUSTOM → $ORIGINAL"
+3CXStopServices
+3CXStartServices