diff --git a/src/libmsc/msc_a.c b/src/libmsc/msc_a.c
index d7e97cd..a5ab2fb 100644
--- a/src/libmsc/msc_a.c
+++ b/src/libmsc/msc_a.c
@@ -1442,6 +1442,8 @@
 			.lai.plmn = msc_a_net(msc_a)->plmn,
 		};
 		gsm0808_cell_id_to_cgi(&msc_a->via_cell, msg->compl_l3.cell_id);
+
+		/* Submit the Complete Layer 3 Information DTAP */
 		rc = msc_a_up_l3(msc_a, msg->compl_l3.msg);
 		if (!rc) {
 			struct ran_conn *conn = msub_ran_conn(msc_a->c.msub);
diff --git a/src/libmsc/ran_msg_a.c b/src/libmsc/ran_msg_a.c
index 24740a7..c9a13a2 100644
--- a/src/libmsc/ran_msg_a.c
+++ b/src/libmsc/ran_msg_a.c
@@ -104,7 +104,7 @@
 		.id = cil.id_list[0],
 	};
 
-	/* Parse Layer 3 Information element */
+	/* Parse Layer 3 Information element; point ran_dec_msg->compl_l3.msg to the L3 Info data */
 	msg->l3h = (uint8_t*)ie_l3_info->val;
 	msgb_l3trim(msg, ie_l3_info->len);