diff --git a/src/libmsc/gsm_04_08_cc.c b/src/libmsc/gsm_04_08_cc.c
index 7172184..0119e7b 100644
--- a/src/libmsc/gsm_04_08_cc.c
+++ b/src/libmsc/gsm_04_08_cc.c
@@ -1931,7 +1931,7 @@
 		/* Create transaction */
 		trans = trans_alloc(net, vsub, GSM48_PDISC_CC, 0xff, data->callref);
 		if (!trans) {
-			DEBUGP(DCC, "No memory for trans.\n");
+			LOGP(DCC, LOGL_ERROR, "No memory for trans.\n");
 			vlr_subscr_put(vsub);
 			/* Ressource unavailable */
 			mncc_release_ind(net, NULL, data->callref,
@@ -2129,7 +2129,7 @@
 				    GSM48_PDISC_CC,
 				    transaction_id, new_callref++);
 		if (!trans) {
-			DEBUGP(DCC, "No memory for trans.\n");
+			LOGP(DCC, LOGL_ERROR, "No memory for trans.\n");
 			rc = gsm48_tx_simple(conn,
 					     GSM48_PDISC_CC | (transaction_id << 4),
 					     GSM48_MT_CC_RELEASE_COMPL);
diff --git a/src/libmsc/gsm_09_11.c b/src/libmsc/gsm_09_11.c
index 12bec9d..608d4ff 100644
--- a/src/libmsc/gsm_09_11.c
+++ b/src/libmsc/gsm_09_11.c
@@ -101,7 +101,7 @@
 		trans = trans_alloc(conn->network, conn->vsub,
 				    GSM48_PDISC_NC_SS, tid, new_callref++);
 		if (!trans) {
-			DEBUGP(DMM, " -> No memory for trans\n");
+			LOGP(DMM, LOGL_ERROR, " -> No memory for trans\n");
 			gsm48_tx_simple(conn,
 				GSM48_PDISC_NC_SS | (tid << 4),
 				GSM0480_MTYPE_RELEASE_COMPLETE);
@@ -298,7 +298,7 @@
 	trans = trans_alloc(net, vsub, GSM48_PDISC_NC_SS,
 		0xff, gsup_msg->session_id);
 	if (!trans) {
-		DEBUGP(DMM, " -> No memory for trans\n");
+		LOGP(DMM, LOGL_ERROR, " -> No memory for trans\n");
 		return NULL;
 	}
 
diff --git a/src/libmsc/transaction.c b/src/libmsc/transaction.c
index df770ed..17f8e96 100644
--- a/src/libmsc/transaction.c
+++ b/src/libmsc/transaction.c
@@ -109,7 +109,7 @@
 
 	/* a valid subscriber is indispensable */
 	if (vsub == NULL) {
-		LOGP(DCC, LOGL_NOTICE,
+		LOGP(DVLR, LOGL_ERROR,
 		     "unable to alloc transaction, invalid subscriber (NULL)\n");
 		return NULL;
 	}