diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index b9b0e28..e5de13f 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -141,6 +141,19 @@
 
 #define AUDIO_PARAMETER_KEY_REC_PLAY_CONC "rec_play_conc_on"
 
+#define  AUDIO_PARAMETER_IS_HW_DECODER_SESSION_ALLOWED  "is_hw_dec_session_allowed"
+
+#define MAX_DSP_ONLY_DECODERS 6
+
+char * dsp_only_decoders_mime[] = {
+	"audio/x-ms-wma" /* wma*/ ,
+	"audio/x-ms-wma-lossless" /* wma lossless */ ,
+	"audio/x-ms-wma-pro" /* wma prop */ ,
+	"audio/amr-wb-plus" /* amr wb plus */ ,
+	"audio/alac"  /*alac */ ,
+	"audio/x-ape" /*ape */,
+};
+
 enum {
 	VOICE_FEATURE_SET_DEFAULT,
 	VOICE_FEATURE_SET_VOLUME_BOOST
@@ -3068,6 +3081,32 @@
         str_parms_add_str(reply, AUDIO_PARAMETER_KEY_VOLUME_BOOST, value);
     }
 
+    ret = str_parms_get_str(query, AUDIO_PARAMETER_IS_HW_DECODER_SESSION_ALLOWED,
+                                    value, sizeof(value));
+
+    if (ret >= 0) {
+        int isallowed = 1; /*true*/
+
+        if(voice_is_in_call(my_data->adev)) {
+            char *decoder_mime_type = value;
+
+            //check if unsupported mime type or not
+            if(decoder_mime_type) {
+                int i = 0;
+                for (i = 0; i < sizeof(dsp_only_decoders_mime)/sizeof(dsp_only_decoders_mime[0]); i++) {
+                    if (!strncmp(decoder_mime_type, dsp_only_decoders_mime[i],
+                    strlen(dsp_only_decoders_mime[i]))) {
+                       ALOGE("Rejecting request for DSP only session from HAL during voice call");
+                       isallowed = 0;
+                       break;
+                    }
+                }
+            }
+        }
+        str_parms_add_int(reply, AUDIO_PARAMETER_IS_HW_DECODER_SESSION_ALLOWED, isallowed);
+    }
+
+
     /* Handle audio calibration keys */
     kv_pairs = str_parms_to_str(reply);
     ALOGV("%s: exit: returns - %s", __func__, kv_pairs);