asterisk users - Oct 2012 - Question on AMI and ChanIsAvail

I was wanting to call ChanIsAvail from AMI.

I logged in and issues command,

Action: Command
Command: ChanIsAvail DAHDI/1

my response was this:
event_list=0 ret=158 Response: Follows[CR ][LF ]Privilege: Command[CR 
][LF ]No such command 'ChanIsAvail DAHDI/1'

Is there any way to tell if a channel is available through AMI?
Did I format my request wrong?
I am on 1.4.43.

Thanks,

Jerry

Using AMI you might want to use hints instead of ChanIsAvail since that
command puts its' output back into the dialplan as variables. 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Jerry Geis
Sent: Thursday, October 18, 2012 10:58 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Question on AMI and ChanIsAvail

I was wanting to call ChanIsAvail from AMI.

I logged in and issues command,

Action: Command
Command: ChanIsAvail DAHDI/1

my response was this:
event_list=0 ret=158 Response: Follows[CR ][LF ]Privilege: Command[CR ][LF
]No such command 'ChanIsAvail DAHDI/1'

Is there any way to tell if a channel is available through AMI?
Did I format my request wrong?
I am on 1.4.43.

Thanks,

Jerry

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On 18 Oct 2012, at 17:58, Jerry Geis wrote:
> I was wanting to call ChanIsAvail from AMI.
> 
> I logged in and issues command,
> 
> Action: Command
> Command: ChanIsAvail DAHDI/1
> 
> my response was this:
> event_list=0 ret=158 Response: Follows[CR ][LF ]Privilege: Command[CR ][LF
]No such command 'ChanIsAvail DAHDI/1'
> 
> Is there any way to tell if a channel is available through AMI?
> Did I format my request wrong?
> I am on 1.4.43.
> 
> Thanks,
> 
> Jerry

You can get (on the CLI) the list of AMI commands supported by your Asterisk
installation issuing "manager show commands".

The AMI command that tells you what a terminal is doing at any time is
"ExtensionState" (I guess it's available on 1.4..). But if you add
hints to your dialplan, then Asterisk will send an AMI event whenever a terminal
in the list of hints is changing state.

You would need to listen to all such events and keep track of each
line/extension; issuing a list of ExtensionState events only when you launch
your tracking process.

Cheers,
Aldo