diff --git a/openbsc/src/libbsc/bsc_init.c b/openbsc/src/libbsc/bsc_init.c
index 521fc89..cda4350 100644
--- a/openbsc/src/libbsc/bsc_init.c
+++ b/openbsc/src/libbsc/bsc_init.c
@@ -310,6 +310,10 @@
 	struct input_signal_data *isd = signal_data;
 	struct gsm_bts_trx *trx = isd->trx;
 	int ts_no, lchan_no;
+	const uint8_t attr[] = { NM_ATT_SW_CONFIG, };
+
+	/* we should not request more attributes than we're ready to handle */
+	OSMO_ASSERT(sizeof(attr) < MAX_BTS_ATTR);
 
 	if (subsys != SS_L_INPUT)
 		return -EINVAL;
@@ -333,6 +337,8 @@
 				for (i = 0; i < ARRAY_SIZE(cur_trx->ts); i++)
 					generate_ma_for_ts(&cur_trx->ts[i]);
 			}
+
+			abis_nm_get_attr(trx->bts, NM_OC_BTS, trx->bts->nr, trx->nr, 0xFF, attr, sizeof(attr));
 		}
 		if (isd->link_type == E1INP_SIGN_RSL)
 			bootstrap_rsl(trx);