diff --git a/daemon/call_interfaces.c b/daemon/call_interfaces.c
index d99711fdc..049785037 100644
--- a/daemon/call_interfaces.c
+++ b/daemon/call_interfaces.c
@@ -2326,11 +2326,11 @@ const char *call_block_dtmf_ng(bencode_item_t *input, bencode_item_t *output) {
 	if (monologue) {
 		ilog(LOG_INFO, "Blocking directional DTMF (tag '" STR_FORMAT_M "')",
 				STR_FMT_M(&monologue->tag));
-		monologue->block_dtmf = 1;
+		monologue->block_dtmf = BLOCK_DTMF_DROP;
 	}
 	else {
 		ilog(LOG_INFO, "Blocking DTMF (entire call)");
-		call->block_dtmf = 1;
+		call->block_dtmf = BLOCK_DTMF_DROP;
 	}
 
 	return NULL;
@@ -2349,15 +2349,15 @@ const char *call_unblock_dtmf_ng(bencode_item_t *input, bencode_item_t *output)
 	if (monologue) {
 		ilog(LOG_INFO, "Unblocking directional DTMF (tag '" STR_FORMAT_M "')",
 				STR_FMT_M(&monologue->tag));
-		monologue->block_dtmf = 0;
+		monologue->block_dtmf = BLOCK_DTMF_OFF;
 	}
 	else {
 		ilog(LOG_INFO, "Unblocking DTMF (entire call)");
-		call->block_dtmf = 0;
+		call->block_dtmf = BLOCK_DTMF_OFF;
 		if (flags.all) {
 			for (GList *l = call->monologues.head; l; l = l->next) {
 				monologue = l->data;
-				monologue->block_dtmf = 0;
+				monologue->block_dtmf = BLOCK_DTMF_OFF;
 			}
 		}
 	}
diff --git a/daemon/codec.c b/daemon/codec.c
index 3df50bd08..34599ba0a 100644
--- a/daemon/codec.c
+++ b/daemon/codec.c
@@ -1864,7 +1864,12 @@ static int packet_dtmf(struct codec_ssrc_handler *ch, struct codec_ssrc_handler
 
 	int ret = 0;
 
-	if (!mp->call->block_dtmf && !mp->media->monologue->block_dtmf) {
+	enum block_dtmf_mode block_dtmf = dtmf_get_block_mode(mp->call, mp->media->monologue);
+
+	if (block_dtmf == BLOCK_DTMF_DROP)
+		{ }
+	else {
+		// pass through
 		if (__buffer_dtx(input_ch->dtx_buffer, ch, input_ch, packet, mp, packet_dtmf_fwd))
 			ret = 1; // consumed
 		else
@@ -1877,7 +1882,11 @@ static int packet_dtmf_dup(struct codec_ssrc_handler *ch, struct codec_ssrc_hand
 		struct transcode_packet *packet,
 		struct media_packet *mp)
 {
-	if (!mp->call->block_dtmf && !mp->media->monologue->block_dtmf)
+	enum block_dtmf_mode block_dtmf = dtmf_get_block_mode(mp->call, mp->media->monologue);
+
+	if (block_dtmf == BLOCK_DTMF_DROP)
+		{ }
+	else // pass through
 		packet_dtmf_fwd(ch, input_ch, packet, mp);
 	return 0;
 }
diff --git a/daemon/dtmf.c b/daemon/dtmf.c
index 450c21f3b..54c87bb43 100644
--- a/daemon/dtmf.c
+++ b/daemon/dtmf.c
@@ -425,3 +425,18 @@ const char *dtmf_inject(struct call_media *media, int code, int volume, int dura
 }
 
 #endif
+
+
+enum block_dtmf_mode dtmf_get_block_mode(struct call *call, struct call_monologue *ml) {
+	if (!call) {
+		if (!ml)
+			return BLOCK_DTMF_OFF;
+		call = ml->call;
+	}
+
+	if (call && call->block_dtmf)
+		return call->block_dtmf;
+	if (!ml)
+		return BLOCK_DTMF_OFF;
+	return ml->block_dtmf;
+}
diff --git a/daemon/redis.c b/daemon/redis.c
index 2126c06ac..89acfca49 100644
--- a/daemon/redis.c
+++ b/daemon/redis.c
@@ -1422,7 +1422,7 @@ static int redis_tags(struct call *c, struct redis_list *tags, JsonReader *root_
 			call_str_cpy(c, &ml->label, &s);
 		redis_hash_get_time_t(&ml->deleted, rh, "deleted");
 		if (!redis_hash_get_int(&ii, rh, "block_dtmf"))
-			ml->block_dtmf = ii ? 1 : 0;
+			ml->block_dtmf = ii;
 		if (!redis_hash_get_int(&ii, rh, "block_media"))
 			ml->block_media = ii ? 1 : 0;
 
@@ -1896,7 +1896,7 @@ static void json_restore_call(struct redis *r, const str *callid, bool foreign)
 	if (!redis_hash_get_str(&id, &call, "created_from_addr"))
 		sockaddr_parse_any_str(&c->created_from_addr, &id);
 	if (!redis_hash_get_int(&i, &call, "block_dtmf"))
-		c->block_dtmf = i ? 1 : 0;
+		c->block_dtmf = i;
 	if (!redis_hash_get_int(&i, &call, "block_media"))
 		c->block_media = i ? 1 : 0;
 
@@ -2216,7 +2216,7 @@ char* redis_encode_json(struct call *c) {
 			JSON_SET_SIMPLE_CSTR("created_from_addr",sockaddr_print_buf(&c->created_from_addr));
 			JSON_SET_SIMPLE("redis_hosted_db","%u",c->redis_hosted_db);
 			JSON_SET_SIMPLE_STR("recording_metadata",&c->metadata);
-			JSON_SET_SIMPLE("block_dtmf","%i",c->block_dtmf ? 1 : 0);
+			JSON_SET_SIMPLE("block_dtmf","%i", c->block_dtmf);
 			JSON_SET_SIMPLE("block_media","%i",c->block_media ? 1 : 0);
 
 			if ((rec = c->recording)) {
@@ -2336,7 +2336,7 @@ char* redis_encode_json(struct call *c) {
 
 				JSON_SET_SIMPLE("created","%llu",(long long unsigned) ml->created);
 				JSON_SET_SIMPLE("deleted","%llu",(long long unsigned) ml->deleted);
-				JSON_SET_SIMPLE("block_dtmf","%i",ml->block_dtmf ? 1 : 0);
+				JSON_SET_SIMPLE("block_dtmf","%i", ml->block_dtmf);
 				JSON_SET_SIMPLE("block_media","%i",ml->block_media ? 1 : 0);
 				if (ml->logical_intf)
 					JSON_SET_SIMPLE_STR("logical_intf", &ml->logical_intf->name);
diff --git a/include/call.h b/include/call.h
index 7f7258ee0..fbfbda8cc 100644
--- a/include/call.h
+++ b/include/call.h
@@ -199,6 +199,11 @@ enum {
 #define MEDIA_SET(p, f)		bf_set(&(p)->media_flags, MEDIA_FLAG_ ## f)
 #define MEDIA_CLEAR(p, f)	bf_clear(&(p)->media_flags, MEDIA_FLAG_ ## f)
 
+enum block_dtmf_mode {
+	BLOCK_DTMF_OFF = 0,
+	BLOCK_DTMF_DROP = 1,
+};
+
 
 
 
@@ -443,8 +448,8 @@ struct call_monologue {
 	char			*sdp_username;
 	char			*sdp_session_name;
 	struct ssrc_hash	*ssrc_hash;
+	enum block_dtmf_mode	block_dtmf;
 
-	unsigned int		block_dtmf:1;
 	unsigned int		block_media:1;
 	unsigned int		silence_media:1;
 	unsigned int		rec_forwarding:1;
@@ -538,6 +543,7 @@ struct call {
 
 	struct call_iterator_entry iterator[NUM_CALL_ITERATORS];
 	int			cpu_affinity;
+	enum block_dtmf_mode	block_dtmf;
 
 	// ipv4/ipv6 media flags
 	unsigned int		is_ipv4_media_offer:1;
@@ -546,7 +552,6 @@ struct call {
 	unsigned int		is_ipv6_media_answer:1;
 	unsigned int		is_call_media_counted:1;
 
-	unsigned int		block_dtmf:1;
 	unsigned int		block_media:1;
 	unsigned int		silence_media:1;
 	unsigned int		recording_on:1;
diff --git a/include/dtmf.h b/include/dtmf.h
index 23bcf9164..8f0e19a5c 100644
--- a/include/dtmf.h
+++ b/include/dtmf.h
@@ -11,6 +11,8 @@
 
 struct media_packet;
 struct call_media;
+struct call;
+struct call_monologue;
 
 
 struct dtmf_event {
@@ -29,5 +31,6 @@ const char *dtmf_inject(struct call_media *media, int code, int volume, int dura
 bool dtmf_do_logging(void);
 void dtmf_dsp_event(const struct dtmf_event *new_event, struct dtmf_event *cur_event,
 		struct call_media *media, int clockrate);
+enum block_dtmf_mode dtmf_get_block_mode(struct call *call, struct call_monologue *ml);
 
 #endif
diff --git a/t/test-transcode.c b/t/test-transcode.c
index 28c8942fe..5af2bbb19 100644
--- a/t/test-transcode.c
+++ b/t/test-transcode.c
@@ -947,7 +947,7 @@ int main(void) {
 	packet_seq(A, 8, PCMA_payload, 1000960, 206, 8, PCMA_payload);
 	packet_seq(A, 8, PCMA_payload, 1001120, 207, 8, PCMA_payload);
 	// enable blocking
-	call.block_dtmf = 1;
+	call.block_dtmf = BLOCK_DTMF_DROP;
 	// start with marker
 	packet_seq_exp(A, 101 | 0x80, "\x05\x0a\x00\xa0", 1001280, 208, -1, "", 0);
 	dtmf("");
@@ -1012,7 +1012,7 @@ int main(void) {
 	packet_seq(A, 8, PCMA_payload, 1000960, 206, 0, PCMU_payload);
 	packet_seq(A, 8, PCMA_payload, 1001120, 207, 0, PCMU_payload);
 	// enable blocking
-	call.block_dtmf = 1;
+	call.block_dtmf = BLOCK_DTMF_DROP;
 	// start with marker
 	packet_seq_exp(A, 101 | 0x80, "\x05\x0a\x00\xa0", 1001280, 208, -1, "", 0);
 	dtmf("");
@@ -1076,7 +1076,7 @@ int main(void) {
 	packet_seq(A, 0, PCMU_payload, 1000960, 206, 0, PCMU_payload);
 	packet_seq(A, 0, PCMU_payload, 1001120, 207, 0, PCMU_payload);
 	// enable blocking
-	call.block_dtmf = 1;
+	call.block_dtmf = BLOCK_DTMF_DROP;
 	// start with marker
 	packet_seq_exp(A, 101 | 0x80, "\x05\x0a\x00\xa0", 1001280, 208, -1, "", 0);
 	dtmf("");