Wait is not ONLY for use with Answer, that just happens to be a common use.

To answer the OP, a quick look at 
http://www.voip-info.org/wiki/view/Asterisk+cmd+Wait confirmed that Wait does 
not work after a channel is hung up:
"If Wait() is run on a channel which has been hung up (i.e. from the 'h' 
extension), the Wait() application returns 0 immediately and no further 
processing of the 'h' extension priorities takes place. You can get around this 
with 'System(path/to/sleep Xs)', where 'X' is the number of seconds to wait. 
Nasty, but it works. "

Sent from my iPhone

On May 26, 2011, at 6:00 AM, James zhu <[email protected]> wrote:

> hi:
> i think the wait is used for answer command.  please show any debug info?
> 
> Best regards,
> James.zhu
> Doing asterisk/PRI/ss7/dahdi, linux, asterisk cards, 
> gateway(fxs/fxo/pri<->SIP).
> website: www.voipviews.com 
> 
> 
> 
> 
> Date: Thu, 26 May 2011 16:15:31 +0530
> From: [email protected]
> To: [email protected]
> Subject: [asterisk-users] Is this Asterisk issue of feature
> 
> Hi List,
> 
> I am confuse about this feature.
> When we use Wait(20)  in active call session then it's work. But when we use 
> after hangup the call then Asterisk don't wait from define time.
> 
> Ex:- 
> 
> [call_log]
> 
> exten => 4368,1,Answer()
> exten => 4368,n,Flite("Welcome")
> exten => 4368,n,Set(__StartTime=${STRFTIME(${EPOCH},Asia/Calcutta,%Y-%m-%d 
> %H:%M:%S)})
> exten => 4368,n,Set(__uniqueId=${UNIQUEID})
> exten => 4368,n,Wait(20) ; At this moment it's work.
> exten => 4368,n,Hangup()
> 
> 
> exten => h,1,NoOp(*******************Now wait(20) wouldn't work 
> ***************** )
> exten => h,n,Wait(20)       ; At this moment it's not work.
> exten => h,n,NoOp(*******************never come  into execution 
> ******************)
>   
> -----
> Thanks and regards
> 
>  Virendra Bhati
> +91-9172341457
> Asterisk Engineer
> 
> 
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