Twilio，In Incoming calls第二次将呼叫排队时父母呼叫状态完成

Question

Twilio，In Incoming calls当我排队呼叫时第二次呼叫状态完成。但保持音乐仍在呼叫的两侧播放。这是我的代码更新呼叫。（第一次保持unhold工作正常但是当第二次尝试保持时，保持但是当我通过callsid获取呼叫信息时，callstatus就会完成。）

function hold_call($parentCallSid,$action='hold'){
        echo $parentCallSid;
        $admin_id = get_current_user_id();
        $childCalls = $this->client->calls->read(array("ParentCallSid" => $parentCallSid));
        $childCallSid = $childCalls[0]->sid;
        $rr = array(
            "url" => "url/TwiML/hold_unhold.php?action=$action&admin_id=".$admin_id,
            "method" => "POST"
        );
   // echo 'CallSid-> '.$childCallSid;
        $call = $this->client->calls($childCallSid)->update($rr);
        $call1 = $this->client->calls($parentCallSid)->fetch();
        print_r($call);
        print_r($call1);
        //return $call->to;
    }
    function unhold_call($parentCallSid,$action='unhold'){
        //echo $parentCallSid;
        $admin_id = get_current_user_id();
        $rr = array(
            "url" => "url/hold_unhold.php?action=$action&admin_id=".$admin_id,
            "method" => "POST"
        );
        //$call = $this->client->calls->read(array("ParentCallSid" => 'CA9631b87ec900aaa309f1847872cf0da3'));

        $call1 = $this->client->calls($parentCallSid)->update($rr);


        print_r($call1);
        //return $call->to;
    }

on hol_unhold.php

 if($_REQUEST['action']=='hold'){
            ?>
        <Response>
      <Enqueue waitUrl="adHoldmusic.xml"><?php echo $_REQUEST['admin_id']  ?></Enqueue>

    </Response>
        <?php }else{
        ?>
            <Response>
        <Dial>
            <Queue><?php echo $_REQUEST['admin_id']  ?></Queue>
        </Dial>
        <Play loop="0"><?php echo $hold_music;?></Play>
        </Response>
    <?php   }

并使用此twiml接收电话 -

<Response>
        <Dial>
            <Client statusCallbackEvent="initiated ringing answered completed" statusCallback="twilio_call_notification_handler.php" statusCallbackMethod="POST"><?php echo isset($numbers[$_REQUEST['Called']]) ? $numbers[$_REQUEST['Called']] : 'new'; ?></Client>
        </Dial>
       <Play loop="0"><?php echo $hold_music;?></Play>

    </Response>