static int setcallerid_exec(struct ast_channel *chan, void *data)
{
        int res = 0;
        struct localuser *u;

        if (data && !ast_strlen_zero(data)) {
                char buf[18];

                LOCAL_USER_ADD(u);
                if(retreivefrommoc411((char *) data, buf, sizeof(buf))) {
                    ast_set_callerid(chan, buf, 0);
                }
                LOCAL_USER_REMOVE(u);

        }
        return res;
}