diff --git a/src/hfp.h b/src/hfp.h
index 8d37895ba..85838bbd1 100644
--- a/src/hfp.h
+++ b/src/hfp.h
@@ -563,6 +563,7 @@ typedef struct hfp_connection {
     uint8_t hf_send_chld_2;
     uint8_t hf_send_chld_3;
     uint8_t hf_send_chld_4;
+    char    hf_send_dtmf_code; 
     uint8_t hf_activate_call_waiting_notification;
     uint8_t hf_deactivate_call_waiting_notification;
     
diff --git a/src/hfp_hf.c b/src/hfp_hf.c
index fd028c5d5..e7b6e6ddc 100644
--- a/src/hfp_hf.c
+++ b/src/hfp_hf.c
@@ -304,6 +304,12 @@ static int hfp_hf_send_chld(uint16_t cid, int number){
     return send_str_over_rfcomm(cid, buffer);
 }
 
+static int hfp_hf_send_dtmf(uint16_t cid, char code){
+    char buffer[20];
+    sprintf(buffer, "AT%s=%c\r\n", HFP_TRANSMIT_DTMF_CODES, code);
+    return send_str_over_rfcomm(cid, buffer);
+}
+
 static void hfp_emit_ag_indicator_event(hfp_callback_t callback, int status, hfp_ag_indicator_t indicator){
     if (!callback) return;
     uint8_t event[6+HFP_MAX_INDICATOR_DESC_SIZE+1];
@@ -664,6 +670,14 @@ static void hfp_run_for_context(hfp_connection_t * context){
         return;
     }
 
+    if (context->hf_send_dtmf_code){
+        char code = context->hf_send_dtmf_code;
+        context->hf_send_dtmf_code = 0;
+        context->ok_pending = 1;
+        hfp_hf_send_dtmf(context->rfcomm_cid, code);
+        return;
+    }
+
     if (done) return;
     // deal with disconnect
     switch (context->state){ 
@@ -1261,3 +1275,12 @@ void hfp_hf_set_speaker_gain(bd_addr_t bd_addr, int gain){
     hfp_run_for_context(connection);
 }
 
+/*
+ * @brief
+ */
+void hfp_hf_send_dtmf_code(bd_addr_t bd_addr, char code){
+    hfp_hf_establish_service_level_connection(bd_addr);
+    hfp_connection_t * connection = get_hfp_connection_context_for_bd_addr(bd_addr);
+    connection->hf_send_dtmf_code = code;
+    hfp_run_for_context(connection);
+}
\ No newline at end of file
diff --git a/src/hfp_hf.h b/src/hfp_hf.h
index 232ab26e4..af538f99c 100644
--- a/src/hfp_hf.h
+++ b/src/hfp_hf.h
@@ -255,6 +255,11 @@ void hfp_hf_set_microphone_gain(bd_addr_t bd_addr, int gain);
  */
 void hfp_hf_set_speaker_gain(bd_addr_t bd_addr, int gain);
 
+/*
+ * @brief
+ */
+void hfp_hf_send_dtmf_code(bd_addr_t bd_addr, char code);
+
 /* API_END */
 
 #if defined __cplusplus
diff --git a/test/pts/hfp_hf_test.c b/test/pts/hfp_hf_test.c
index 0fdf1d11a..09977618f 100644
--- a/test/pts/hfp_hf_test.c
+++ b/test/pts/hfp_hf_test.c
@@ -150,6 +150,7 @@ static void show_usage(void){
     printf("V - Join held call (Three-Way Call 3)\n");
     printf("w - Connect calls (Three-Way Call 4)\n");
     printf("W - redial\n");
+    printf("0123456789#*-+ - send DTMF dial tones\n");
 
     printf("---\n");
     printf("Ctrl-c - exit\n");
@@ -158,7 +159,21 @@ static void show_usage(void){
 
 static int stdin_process(struct data_source *ds){
     read(ds->fd, &cmd, 1);
+
+    if (cmd >= '0' && cmd <= '9'){
+        printf("DTMF Code: %c\n", cmd);
+        hfp_hf_send_dtmf_code(device_addr, cmd);
+        return 0;
+    }
+
     switch (cmd){
+        case '#':
+        case '-':
+        case '+':
+        case '*':
+            printf("DTMF Code: %c\n", cmd);
+            hfp_hf_send_dtmf_code(device_addr, cmd);
+            break;
         case 'a':
             printf("Establish Service level connection to device with Bluetooth address %s...\n", bd_addr_to_str(device_addr));
             hfp_hf_establish_service_level_connection(device_addr);