diff --git a/openbsc/src/gsm_04_08_utils.c b/openbsc/src/gsm_04_08_utils.c
index 0e242b77..e95de79f 100644
--- a/openbsc/src/gsm_04_08_utils.c
+++ b/openbsc/src/gsm_04_08_utils.c
@@ -305,10 +305,20 @@ static const enum gsm_chreq_reason_t reason_by_chreq[] = {
 enum gsm_chan_t get_ctype_by_chreq(struct gsm_bts *bts, u_int8_t ra, int neci)
 {
 	int i;
-	/* FIXME: determine if we set NECI = 0 in the BTS SI4 */
+	int length;
+	const struct chreq *chreq;
 
-	for (i = 0; i < ARRAY_SIZE(chreq_type_neci0); i++) {
-		const struct chreq *chr = neci ? &chreq_type_neci1[i] : &chreq_type_neci0[i];
+	if (neci) {
+		chreq = chreq_type_neci1;
+		length = ARRAY_SIZE(chreq_type_neci1);
+	} else {
+		chreq = chreq_type_neci0;
+		length = ARRAY_SIZE(chreq_type_neci0);
+	}
+
+
+	for (i = 0; i < length; i++) {
+		const struct chreq *chr = &chreq[i];
 		if ((ra & chr->mask) == chr->val)
 			return ctype_by_chreq[chr->type];
 	}
@@ -319,10 +329,19 @@ enum gsm_chan_t get_ctype_by_chreq(struct gsm_bts *bts, u_int8_t ra, int neci)
 enum gsm_chreq_reason_t get_reason_by_chreq(struct gsm_bts *bts, u_int8_t ra, int neci)
 {
 	int i;
-	/* FIXME: determine if we set NECI = 0 in the BTS SI4 */
+	int length;
+	const struct chreq *chreq;
 
-	for (i = 0; i < ARRAY_SIZE(chreq_type_neci0); i++) {
-		const struct chreq *chr = neci ? &chreq_type_neci1[i] : &chreq_type_neci0[i];
+	if (neci) {
+		chreq = chreq_type_neci1;
+		length = ARRAY_SIZE(chreq_type_neci1);
+	} else {
+		chreq = chreq_type_neci0;
+		length = ARRAY_SIZE(chreq_type_neci0);
+	}
+
+	for (i = 0; i < length; i++) {
+		const struct chreq *chr = &chreq[i];
 		if ((ra & chr->mask) == chr->val)
 			return reason_by_chreq[chr->type];
 	}