diff --git a/driver/bk4819.c b/driver/bk4819.c
index 5e7b05b..062d9f7 100644
--- a/driver/bk4819.c
+++ b/driver/bk4819.c
@@ -804,3 +804,13 @@ void BK4819_StopScan(void)
         BK4819_Disable();
 }
 
+uint8_t BK4819_GetDTMF_5TONE_Code(void)
+{
+        return (BK4819_GetRegister(BK4819_REG_0B) >> 8) & 0x0F;
+}
+
+uint8_t BK4819_CheckCDCSSCodeReceived(void)
+{
+        return (BK4819_GetRegister(BK4819_REG_0C) >> 14) & 3;
+}
+
diff --git a/driver/bk4819.h b/driver/bk4819.h
index 53c660c..5ddec16 100644
--- a/driver/bk4819.h
+++ b/driver/bk4819.h
@@ -120,5 +120,9 @@ void BK4819_Disable(void);
 
 void BK4819_StopScan(void);
 
+uint8_t BK4819_GetDTMF_5TONE_Code(void);
+
+uint8_t BK4819_CheckCDCSSCodeReceived(void);
+
 #endif