freeswitch报错

1.         2010-10-26 11:01:58.448513 [ERR] sofia_reg.c:816 Can not do authorization without a complete from header in REGISTER request from 10.248.17.109:32275

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　　if (!to_user) {
        to_user = from_user;
    }
    if (!to_host) {
        to_host = from_host;
    }

    if (!to_user || !to_host) {
        switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can not do authorization without a complete header in REGISTER request from %s:%d
", 
                          network_ip, network_port);

        nua_respond(nh, SIP_401_UNAUTHORIZED, NUTAG_WITH_THIS_MSG(de->data->e_msg), TAG_END());
        switch_goto_int(r, 1, end);
    }