diff --git a/mbtk/test/liblynq_lib/lynq-qser-voice-demo.cpp b/mbtk/test/liblynq_lib/lynq-qser-voice-demo.cpp
new file mode 100755
index 0000000..d6ddaf1
--- /dev/null
+++ b/mbtk/test/liblynq_lib/lynq-qser-voice-demo.cpp
@@ -0,0 +1,303 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <dlfcn.h>
+#include <stdint.h>
+
+#include"lynq-qser-voice-demo.h"
+
+typedef struct
+{
+    int  cmdIdx;
+    char *funcName;
+} st_api_test_case;
+    
+//for server test
+st_api_test_case at_api_testcases[] = 
+{
+    {0,   "print_help"},
+    {1,   "qser_voice_call_start"},
+    {2,   "qser_voice_call_end"},
+    {3,   "qser_voice_call_answer"},
+    {4,   "qser_voice_set_speech_volume"},
+    {5,   "qser_voice_get_speech_volume"},
+    {6,   "qser_voice_set_dtmf"},
+    {-1,    NULL}
+};
+
+
+
+typedef uint32_t voice_client_handle_type;
+
+
+int (*qser_voice_call_client_init)(voice_client_handle_type *ph_voice);
+int (*qser_voice_call_client_deinit)(voice_client_handle_type );
+int (*qser_voice_call_addstatehandler)(voice_client_handle_type  h_voice,
+                                       QSER_VoiceCall_StateHandlerFunc_t  handlerPtr,
+                                       void *contextPtr);
+
+int (*qser_voice_call_removestatehandle)(voice_client_handle_type );
+int (*qser_voice_call_start)(voice_client_handle_type  h_voice,
+                             E_QSER_VCALL_ID_T   simId, 
+                             char *phone_number, int *call_id); 
+
+int (*qser_voice_call_end)(voice_client_handle_type ,int );
+int (*qser_voice_call_answer)(voice_client_handle_type ,int  );
+int (*qser_voice_set_speech_volume)(const int volume);
+int (*qser_voice_get_speech_volume)(int *volume);
+int (*qser_voice_set_dtmf)(const char callnum);
+
+void *dlHandle_call = NULL;
+
+static void yk_voice_call_cb_func(int                     call_id,
+                                  char*                   phone_num,
+                                  qser_voice_call_state_t state,
+                                  void                    *contextPtr)
+{
+    char *call_state[] = {"INCOMING", "DIALING", "ALERTING", "ACTIVE", "HOLDING", "END", "WAITING"};
+
+    printf("######### Call id=%d, PhoneNum:%s, event=%s!  ######\n", call_id, phone_num, call_state[state]);
+}
+
+void print_help(void)
+{
+    int i;
+    printf("Supported test cases:\n");
+    for(i = 0; ; i++)
+    {
+        if(at_api_testcases[i].cmdIdx == -1)
+        {
+            break;
+        }
+        printf("%d:\t%s\n", at_api_testcases[i].cmdIdx, at_api_testcases[i].funcName);
+    }
+}
+
+int main(int argc, char const *argv[])
+{
+    int cmdIdx = 0;
+    int ret    = 0;
+    int  voice_call_id = 0;
+    voice_client_handle_type    h_voice     = 0;
+    
+    const char *lynqLibPath_Call = "/lib/liblynq-qser-voice.so";
+    dlHandle_call = dlopen(lynqLibPath_Call, RTLD_NOW);
+    if (dlHandle_call == NULL) 
+    {
+        printf("dlopen dlHandle_call failed: %s\n", dlerror());
+        exit(EXIT_FAILURE);
+    }
+    
+    qser_voice_call_client_init = (int(*)(voice_client_handle_type *ph_voice))dlsym(dlHandle_call, "qser_voice_call_client_init");
+    if(qser_voice_call_client_init == NULL) 
+    {
+        printf("qser_voice_call_client_init not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+
+    qser_voice_call_addstatehandler = (int(*)(voice_client_handle_type          h_voice,
+                                            QSER_VoiceCall_StateHandlerFunc_t    handlerPtr,
+                                            void  *contextPtr))dlsym(dlHandle_call,"qser_voice_call_addstatehandler");
+    if(qser_voice_call_addstatehandler == NULL) 
+    {
+        printf("qser_voice_call_addstatehandler not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+    
+    qser_voice_call_answer = (int(*)(voice_client_handle_type,int ))dlsym(dlHandle_call,"qser_voice_call_answer");
+    if(qser_voice_call_answer == NULL) 
+    {
+        printf("qser_voice_call_answer not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+
+    qser_voice_call_start = (int(*)(voice_client_handle_type  h_voice,E_QSER_VCALL_ID_T   simId, 
+                                    char *phone_number, int *call_id))dlsym(dlHandle_call,"qser_voice_call_start");
+    if(qser_voice_call_start == NULL) 
+    {
+        printf("qser_voice_call_start not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+
+    qser_voice_call_end = (int(*)(voice_client_handle_type ,int))dlsym(dlHandle_call,"qser_voice_call_end");
+    if(qser_voice_call_end == NULL) 
+    {
+        printf("qser_voice_call_end not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+    
+
+    qser_voice_call_client_deinit = (int (*)(voice_client_handle_type h_voice))dlsym(dlHandle_call,"qser_voice_call_client_deinit");
+    if(qser_voice_call_client_deinit == NULL) 
+    {
+        printf("qser_voice_call_client_deinit  not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+
+    qser_voice_call_removestatehandle = (int (*)(voice_client_handle_type))dlsym(dlHandle_call,"qser_voice_call_removestatehandle");
+    if(qser_voice_call_removestatehandle == NULL) 
+    {
+        printf("qser_voice_call_removestatehandle not defined or exported in %s\n", lynqLibPath_Call);
+        return -1;
+    }
+
+    qser_voice_set_speech_volume = (int (*)(const int ))dlsym(dlHandle_call,"qser_voice_set_speech_volume");
+    if(qser_voice_set_speech_volume == NULL)    
+    {
+            printf("qser_voice_set_speech_volume not defined or exported in %s\n", lynqLibPath_Call);
+            return -1;
+    }
+
+    qser_voice_get_speech_volume = (int (*)(int* ))dlsym(dlHandle_call,"qser_voice_get_speech_volume");
+    if(qser_voice_get_speech_volume == NULL)    
+    {
+            printf("qser_voice_get_speech_volume not defined or exported in %s\n", lynqLibPath_Call);
+            return -1;
+    }
+
+    qser_voice_set_dtmf = (int (*)(const char ))dlsym(dlHandle_call,"qser_voice_set_dtmf");
+    if(qser_voice_set_dtmf == NULL)    
+    {
+            printf("qser_voice_set_dtmf not defined or exported in %s\n", lynqLibPath_Call);
+            return -1;
+    }
+    
+    ret = qser_voice_call_client_init(&h_voice);
+    if(ret != 0 )
+    {
+        printf("qser_voice_call_client_init FAIL\n");
+        return -1;
+    }
+
+    ret = qser_voice_call_addstatehandler(h_voice, yk_voice_call_cb_func, &voice_call_id);
+    if(ret != 0)
+    {
+        printf("qser_voice_call_addstatehandler FAIL\n");
+        return -1;
+    }
+
+
+    print_help();
+    while(1)
+    {
+        printf("\nplease input cmd index(-1 exit): ");
+        scanf("%d", &cmdIdx);
+        if(cmdIdx == -1)
+        {
+            break;
+        }
+
+        switch(cmdIdx)
+        {
+            //"print_help
+            case 0:
+                print_help();
+                break;
+
+            //"qser_voice_call_start"
+            case 1:
+            {
+                char    PhoneNum[32] = {0}; 
+
+                printf("please input dest phone number: \n");
+                scanf("%s", PhoneNum);
+            
+                ret = qser_voice_call_start(h_voice, E_QSER_VCALL_EXTERNAL_SLOT_1, PhoneNum, &voice_call_id);
+                printf("qser_voice_call_start ret = %d, with voice_call_id=%d\n", ret, voice_call_id);
+                break;
+            }
+    
+            //"qser_voice_call_end"
+            case 2:
+            {
+                int call_id = -1;
+                printf("please input end call id: \n");
+                scanf("%d", &call_id);
+                ret = qser_voice_call_end(h_voice, call_id);
+                printf(" ret = %d\n", ret);
+                break;
+            }
+
+            //"qser_voice_call_answer"
+            case 3:
+            {
+                int call_id = -1;
+                printf(" please input answer call id\n");
+                scanf("%d", &call_id);
+                ret = qser_voice_call_answer(h_voice, call_id);
+                printf(" ret = %d\n", ret);
+                break;
+            }
+            
+            case 4:
+            {
+                int volume = 0;
+                printf("Please set speech volume:0-5 level\n");
+                scanf("%d",&volume);
+                ret = qser_voice_set_speech_volume(volume);
+                printf("ret is %d\n",ret);
+                break;
+
+            }
+
+            case 5:
+            {
+                int volume = -1;
+                printf("Enter get speech volume\n");
+                ret = qser_voice_get_speech_volume(&volume);
+                printf("ret is %d,get volume is %d\n",ret,volume);
+                break;
+
+            }
+            case 6:
+            {
+                
+               int ret;
+               char inputChar;
+            
+               printf("Enter set dtmf\n");
+               scanf(" %c", &inputChar);
+               printf("inputChar is %c\n", inputChar);
+               ret = qser_voice_set_dtmf(inputChar);
+               
+               if (ret != 0) 
+               {
+                   printf("qser set voice dtmf failed\n");
+                   return -1;
+               }
+              break;
+            }
+            
+            default:
+                print_help();
+                break;
+        }
+            
+    }
+    
+    ret = qser_voice_call_removestatehandle(h_voice);
+    if(ret != 0 && ret != 1)
+    {
+        printf("qser_voice_call_removestatehandle FAIL!!!\n");
+        return -1;
+    }
+    printf("qser_voice_call_removestatehandle ret = %d\n", ret);
+    
+    
+    ret = qser_voice_call_client_deinit(h_voice);
+    if(ret != 0)
+    {
+        printf("qser_voice_call_client_deinit FAIL\n");
+        return -1;
+    }
+    printf("qser_voice_call_client_deinit ret = %d, with h_voice=%d\n", ret, h_voice);
+    
+   return 0;
+
+    
+}
+
+