Update modules/kamailio/config/kamailio.cfg

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Amygos

modules/kamailio/config/kamailio.cfg

@@ -412,7 +412,7 @@ route[WITHINDLG] {
         route(DLGURI);
         if ( is_method("ACK") ) {
             # ACK is forwarded statelessly
-            # Ensure correct socket is used (especially for INTERNAL_NETWORK)
+            # Ensure correct socket is used for ACKs across all relevant network types
             route(SET_SOCKET);
             route(NATMANAGE);
         } else if ( is_method("NOTIFY") ) {