/* Linealize PDU to buffer ********************************************/
    memset(local_buffer, 0, sizeof(local_buffer));
    ret = smpp34_pack2( local_buffer, sizeof(local_buffer), 
                                            &local_buffer_len, (void*)&req);
    if( ret != 0 ){ printf("Error in smpp34_pack():%d:\n%s\n",
                            smpp34_errno, smpp34_strerror); return( -1 ); };
    /* Print PDU **********************************************************/
    memset(print_buffer, 0, sizeof(print_buffer));
    ret = smpp34_dumpPdu2( print_buffer, sizeof(print_buffer), (void*)&req);
    if( ret != 0){ printf("Error in smpp34_dumpPdu():%d:\n%s\n",
                           smpp34_errno, smpp34_strerror); return( -1 ); };
    printf("-----------------------------------------------------------\n");
    printf("SENDING PDU \n%s\n", print_buffer);
    /* Print Buffer *******************************************************/
    memset(print_buffer, 0, sizeof(print_buffer));
    ret = smpp34_dumpBuf(print_buffer, sizeof(print_buffer), 
                                            local_buffer, local_buffer_len);
    if( ret != 0 ){ printf("Error in smpp34_dumpBuf():%d:\n%s\n",
                           smpp34_errno, smpp34_strerror ); return( -1 ); };
    printf("SENDING BUFFER \n%s\n", print_buffer);
    /* Write to socket ****************************************************/
    ret = send(sock_tcp, local_buffer, local_buffer_len, 0); 
    if( ret != local_buffer_len ){ printf("Error in send()\n");return( -1 );};