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

  * Function:
<code>queueCustomerNum(orgidentity, queuenumber, prio)
</code>
  * Description:
According queue number, query current waiting customer stat
  * Parameters:

^ Params      ^ Type       ^ Description          ^
|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>
code|message
0:failed
1:success 
</code>

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

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