[asterisk-users] Using AMI to determine PRI Channels Used

[Anthony Francis]

It is easier than that, I have found that the link event watching is 
buggy and not very reliable. Here is what I do in my PSTN context:
exten => _X.,1,Wait(1)
exten => _X.,2,NoOp(CIDName: ${CALLERIDNAME} - CIDNum ${CALLERIDNUM} )
exten => _X.,3,Set(GROUP()=ZAP)
exten => _X.,4,UserEvent(ZapCall|${GROUP_COUNT(ZAP)})
exten => _X.,5,Goto(dids,${EXTEN},1)

Then I do the same thing on the PSTN out part. ON my Perl event watcher 
I have a callback for this event:
      zapcall  => {
        'Event' => 'UserEventZapCall',
      },
Which is handled by:
      zapcall => sub {
        my $event = $_[ARG0];
        my $zc = $event->{content};
I would show you the rest but it doesn't matter, it just sticks the 
number in a DB so we can do usage graphs and know when we need to 
increase capacity. I also have it alert when all channels on a PSTN box 
are used.

The benefit to using a group and a user event is that asterisk does all 
the counting for you.


Richard Lyman wrote:
> Godson Gera wrote:
>   
>> On Mon, Nov 10, 2008 at 7:41 PM, David Budny <dbudny at visiblecustomer.com>wrote:
>>
>>   
>>     
>>>  What is the AMI command to see how many PRI channels are being used /
>>> available?
>>>
>>>
>>>
>>> Thanks
>>>
>>>     
>>>       
>> There is no direct command in AMI which will give you used channels number.
>> But you can easily keep track of the active zap channels, by catching the
>> respective events (events Link, Ringing,Hangup,Unlink etc etc ), on zap
>> channels, and storing them in a variable in your program.
>>
>> When you receive a Connecting kind of event like Link,Ringing increase the
>> variable value, and when you receive Hangup or Unlink events decrease the
>> variable value.
>>
>> Happy Hacking,
>> Godson Gera.
>> http://godson.in
>>   
>>     
> Action: Status       (this will show only active channels, parse out the 
> Zap ones)
>
> and
>
> Action: ZapShowChannels      (this will list all Zaps, parse out what 
> you are looking for (PRI ones will have 'Signalling: PRI...'))
>
>
>
>
>
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-- 
Thank you and have any kind of day you want,

Anthony Francis
Rockynet VOIP