Export the variables to the b leg as well

src/mod/applications/mod_dptools/mod_dptools.c

@@ -2982,6 +2982,8 @@ static switch_call_cause_t user_outgoing_channel(switch_core_session_t *session,
 			}
 		}
 	}
+        switch_event_add_header_string(var_event, SWITCH_STACK_BOTTOM, "dialed_user", user);
+        switch_event_add_header_string(var_event, SWITCH_STACK_BOTTOM, "dialed_domain", domain);
 
 	if (!dest) {
 		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "No dial-string available, please check your user directory.\n");