diff --git a/openbsc/include/openbsc/abis_nm.h b/openbsc/include/openbsc/abis_nm.h
index 1b6a8fe..1e9197e 100644
--- a/openbsc/include/openbsc/abis_nm.h
+++ b/openbsc/include/openbsc/abis_nm.h
@@ -148,7 +148,7 @@
 			 u_int8_t *attr, int attr_len);
 int abis_nm_ipaccess_set_nvattr(struct gsm_bts_trx *trx, u_int8_t *attr,
 				int attr_len);
-int abis_nm_ipaccess_restart(struct gsm_bts *bts);
+int abis_nm_ipaccess_restart(struct gsm_bts_trx *trx);
 int abis_nm_ipaccess_set_attr(struct gsm_bts *bts, u_int8_t obj_class,
 				u_int8_t bts_nr, u_int8_t trx_nr, u_int8_t ts_nr,
 				u_int8_t *attr, u_int8_t attr_len);
diff --git a/openbsc/include/openbsc/signal.h b/openbsc/include/openbsc/signal.h
index fbb4163..48f7946 100644
--- a/openbsc/include/openbsc/signal.h
+++ b/openbsc/include/openbsc/signal.h
@@ -135,7 +135,7 @@
 };
 
 struct ipacc_ack_signal_data {
-	struct gsm_bts *bts;
+	struct gsm_bts_trx *trx;
 	u_int8_t msg_type;	
 };
 
diff --git a/openbsc/src/abis_nm.c b/openbsc/src/abis_nm.c
index 42f610d..ee0604d 100644
--- a/openbsc/src/abis_nm.c
+++ b/openbsc/src/abis_nm.c
@@ -2775,12 +2775,12 @@
 	case NM_MT_IPACC_RSL_CONNECT_NACK:
 	case NM_MT_IPACC_SET_NVATTR_NACK:
 	case NM_MT_IPACC_GET_NVATTR_NACK:
-		signal.bts = msg->trx->bts;
+		signal.trx = gsm_bts_trx_by_nr(msg->trx->bts, foh->obj_inst.trx_nr);
 		signal.msg_type = foh->msg_type;
 		dispatch_signal(SS_NM, S_NM_IPACC_NACK, &signal);
 		break;
 	case NM_MT_IPACC_SET_NVATTR_ACK:
-		signal.bts = msg->trx->bts;
+		signal.trx = gsm_bts_trx_by_nr(msg->trx->bts, foh->obj_inst.trx_nr);
 		signal.msg_type = foh->msg_type;
 		dispatch_signal(SS_NM, S_NM_IPACC_ACK, &signal);
 		break;
@@ -2866,9 +2866,16 @@
 }
 
 /* restart / reboot an ip.access nanoBTS */
-int abis_nm_ipaccess_restart(struct gsm_bts *bts)
+int abis_nm_ipaccess_restart(struct gsm_bts_trx *trx)
 {
-	return __simple_cmd(bts, NM_MT_IPACC_RESTART);
+	struct abis_om_hdr *oh;
+	struct msgb *msg = nm_msgb_alloc();
+
+	oh = (struct abis_om_hdr *) msgb_put(msg, ABIS_OM_FOM_HDR_SIZE);
+	fill_om_fom_hdr(oh, 0, NM_MT_IPACC_RESTART, NM_OC_BASEB_TRANSC,
+			trx->bts->nr, trx->nr, 0xff);
+
+	return abis_nm_sendmsg(trx->bts, msg);
 }
 
 int abis_nm_ipaccess_set_attr(struct gsm_bts *bts, u_int8_t obj_class,
diff --git a/openbsc/src/ipaccess/ipaccess-config.c b/openbsc/src/ipaccess/ipaccess-config.c
index da0131a..556220a 100644
--- a/openbsc/src/ipaccess/ipaccess-config.c
+++ b/openbsc/src/ipaccess/ipaccess-config.c
@@ -92,23 +92,23 @@
 	return 0;
 }
 
-static void check_restart_or_exit(struct gsm_bts *bts)
+static void check_restart_or_exit(struct gsm_bts_trx *trx)
 {
 	if (restart) {
-		abis_nm_ipaccess_restart(bts);
+		abis_nm_ipaccess_restart(trx);
 	} else {
 		exit(0);
 	}
 }
 
-static int ipacc_msg_ack(u_int8_t mt, struct gsm_bts *bts)
+static int ipacc_msg_ack(u_int8_t mt, struct gsm_bts_trx *trx)
 {
 	if (sw_load_state == 1) {
 		fprintf(stderr, "The new software is activaed.\n");
-		check_restart_or_exit(bts);
+		check_restart_or_exit(trx);
 	} else if (oml_state == 1) {
 		fprintf(stderr, "Set the primary OML IP.\n");
-		check_restart_or_exit(bts);
+		check_restart_or_exit(trx);
 	}
 
 	return 0;
@@ -203,7 +203,7 @@
 		return ipacc_msg_nack(ipacc_data->msg_type);
 	case S_NM_IPACC_ACK:
 		ipacc_data = signal_data;
-		return ipacc_msg_ack(ipacc_data->msg_type, ipacc_data->bts);
+		return ipacc_msg_ack(ipacc_data->msg_type, ipacc_data->trx);
 	case S_NM_TEST_REP:
 		return test_rep(signal_data);
 	case S_NM_IPACC_RESTART_ACK:
@@ -304,7 +304,6 @@
 	int len;
 	static u_int8_t buf[1024];
 	u_int8_t *cur = buf;
-	struct gsm_bts *bts = trx->bts;
 
 	printf("OML link established using TRX %d\n", trx->nr);
 
@@ -361,7 +360,7 @@
 
 	if (restart && !prim_oml_ip && !software) {
 		printf("restarting BTS\n");
-		abis_nm_ipaccess_restart(bts);
+		abis_nm_ipaccess_restart(trx);
 	}
 
 }