gc_SetInfoElem() - Error

Hi,

I'm using function gc_SetInfoElem() to set CLIR while making an outbound call. But everytime I'm receiving an error:

gc_SetInfoElem() on device handle: 0x3f, GC ErrorValue: 0x89 - CCLIB specific, CCLibID: 6 - GC_DM3CC_LIB, CC ErrorValue : 0x 8016 - Internal error: IE size mismatch

What I'm doing wrong?

My code is:

       IE_BLK ieblk;
       GC_IE_BLK gc_ieblk;

       GC_INFO gc_error_info;

       char my_num[16];

     sprintf(my_num,"123456789");

        ieblk.length = strlen(my_num) + 5;
        ieblk.data[0] = CALLER_NUMBER_IE;
        ieblk.data[1] = strlen(my_num)+2;
        ieblk.data[2] = ISDN_NUMB_PLAN;
        ieblk.data[3] = (unsigned char)(0x80 | ISDN_PI_RESTRICT << 5 | USER_PROVIDED);
        strcpy(&ieblk.data[4], my_num);

        gc_ieblk.gclib = NULL;
        gc_ieblk.cclib = &ieblk;

       if (gc_SetInfoElem(dtihdl, &gc_ieblk) < 0)
        {
            gc_ErrorInfo(&gc_error_info);
            printf("Error: gc_SetInfoElem() on device handle: 0x%lx, GC ErrorValue: 0x%hx - %s, CCLibID: %i - %s, CC ErrorValue : 0x % lx - %s\n",
                     dtihdl, gc_error_info.gcValue, gc_error_info.gcMsg,
                     gc_error_info.ccLibId, gc_error_info.ccLibName,
                     gc_error_info.ccValue, gc_error_info.ccMsg);
        }