====== Get waiting customer stat in agent group ======

  * Reques String:
<code> EVENT=queueCustomerNum&orgidentity=orgidentity&queuenumber=queuenumber&prio=prio
</code>
  * Description:
According queue number, query current waiting customer stat
  * Parameters:

^ Params      ^ Type       ^ Description          ^
|EVENT|String|queueCustomerNum|
|orgidentity|String|team identity string|
|queuenumber|String|queue number, 0 means all queues|
|prio|String|Priority, 0 by default, means only query customer who has high priority than this|



  * Return Format：

<code>
|Retuen|code|Retuen|message
</code>

  * Type of the Return Value:String
  * Return values：

^ Value      ^ Description       ^
|<code>|Retuen|1|Retuen|message</code>|<code>|Retuen|succeed|Retuen|message
message use ‘|’ as seprator，shows the number of callers
total|ringing|waiting|talking
Such as
|Retuen|1|Retuen|1|0|1|0</code>|
|<code>|Retuen|2|Retuen|message</code>|<code>|Retuen|failed|Retuen|message</code>|