Asterisk 提供了 hints 状态，用于提示座席的状态情况
一般用 core show hints 可以显示状态的情况，如下图:
PH-Elastix02*CLI> core show hints
-= Registered Asterisk Dial Plan Hints =-
*47*8004*801@ext-queues : Queue:801 State:Unavailable Watchers 0
6120@ext-local : SIP/6120,CustomPrese State:Unavailable Watchers 0
6121@ext-local : SIP/6121,CustomPrese State:Unavailable Watchers 0
6122@ext-local : SIP/6122,CustomPrese State:Unavailable Watchers 0
6123@ext-local : SIP/6123,CustomPrese State:Unavailable Watchers 0
6124@ext-local : SIP/6124,CustomPrese State:Idle Watchers 0
6125@ext-local : SIP/6125,CustomPrese State:Unavailable Watchers 0
*46*8003*801@ext-queues : qpause:801:Local/800 State:Unavailable Watchers 0
6126@ext-local : SIP/6126,CustomPrese State:Unavailable Watchers 0
6127@ext-local : SIP/6127,CustomPrese State:Unavailable Watchers 0
6128@ext-local : SIP/6128,CustomPrese State:Unavailable Watchers 0
或是对单个分机号的状态进行显示：
如: core show hint 8003
PH-Elastix02*CLI> core show hint 8003
8003@ext-local : SIP/8003,CustomPrese State:Ringing Watchers 0
1 hint matching extension 8003
-- Connected line update to SIP/8002-000000c0 prevented.
-- SIP/8003-000000c1 answered SIP/8002-000000c0
PH-Elastix02*CLI> core show hint 8003
8003@ext-local : SIP/8003,CustomPrese State:InUse Watchers 0
1 hint matching extension 8003
其状态有以下的状态：
The following list includes the possible values that may be returned back from the EXTENSION_STATE() function: