[asterisk-dev] AGI:async

Wed Nov 23 08:56:16 CST 2016

Hi Salvatore,

Be careful with SIP softphones.  I've seen them do weird stuff with AMI 
commands (i.e.: Commands received are messed up/cut-out in parts), 
especially when it comes to DTMFs.  I've found SFLphone (not Ring) to 
work the best, but even it had issues.  In the end I opted for Digium 
cards (analog and PRI work best) and hardware SIP devices.

Sorry, I don't really have any experience using queues and even less 
with ARI (like I said, I went pure AMI from a C-application and I've 
never tried controlling/handling a call via a web interface).  I learnt 
a few queue dialplan concepts years ago, but don't recall the details.  
In all of this you didn't mention how you were trying to answer the 
calls.  Have you used the AddQueueMember application (with no members 
defined in queues.conf, as specified within the "Return codes" section 
of http://www.voip-info.org/wiki/view/Asterisk+cmd+Queue) to add someone 
with whom to receive/answer calls?  If not, that might be something to 
read up on..

To answer your question, I imagine either you need to use Asterisk 
queue's or write your own queue.  I mean, there has to be some way of 
tracking all the calls and allowing you to select one to deal with at a 
time.

Here's a tutorial on queues which I came across.  Maybe you could try 
following along with it and see if it helps you progress with queues:

http://www.orderlyq.com/asterisk-queues-tutorial/

Hope this helps,

Daniel

On 11/23/2016 03:24 AM, Salvatore Franco wrote:
> Hi Daniel,
> the Queue works well if I use a SIP Client (Zoiper) but if I try to 
> answer using AMI i receive that error :(
>
> ARI command ANSWER only works if I use it on a single channel, the 
> queue is a strange application that cannot be in Stasis directly.
> Is writing my own queue the only way to handle calls via http in queue?
>
> Thanks
>
> Regards
>
> *Salvatore Franco*
>
>
>
> ------------------------------------------------------------------------
>
> Da: asterisk-dev-bounces at lists.digium.com
> A: "Asterisk Developers Mailing List" asterisk-dev at lists.digium.com
> Cc:
> Data: Tue, 22 Nov 2016 12:33:38 -0500
> Oggetto: Re: [asterisk-dev] AGI:async
>
> Hi,
>
> Unfortunately, I wish I had a simple queue to share but my 
> implementation is quite complex due to how I control the call on a 
> per-operation basis.  If you choose this route then perhaps you can 
> use store your channel/queue name(s) within simple storage elements 
> such as a stack, array, or even a hashtable (although the last may not 
> be ideal for retrieving calls in order) and then use AMI to control 
> the calls from there.  Sorry I can't be more helpful in providing you 
> an example.
>
> I imagine Asterisk queue's work though, so perhaps it might be worth 
> your while to pursue that approach a bit more (unfortunately I've 
> never tried them, so I can't tell you how it's done!).  That being 
> said, perhaps getting Asterisk Queue's going will require a more 
> step-by-step approach to figure out why it's not working for you.  
> Here are my suggestions:
>
> Have you tried the exact dialplans in the examples within 
> http://www.voip-info.org/wiki/view/Asterisk+cmd+Queue ?  i.e.: Have 
> you been able to get Asterisk queue's working without AMI?  If not, 
> that might be where to start and then add AMI in afterward..
>
> Another suggestion I have is to use the QueueAdd AMI command, rather 
> then calling Queue within your dialplan.  If you have success on doing 
> something like an Answer/Playback via AMI, then you will probably have 
> no issues with the QueueAdd AMI command.  Please try that and maybe 
> you'll have more luck. Here's the API reference: 
> http://www.voip-info.org/wiki/view/Asterisk+Manager+API+Action+QueueAdd
>
> Hope this helps & good luck,
>
> Daniel
>
>
> On 11/22/2016 10:35 AM, Salvatore Franco wrote:
>>
>> Hi,
>> Thanks for your suggestions.
>> The comma was an error in my email, not in my dialplan.
>> Even if i use Answer command before Queue i received the same error 
>> back, so i think the best way is to have my own queue.
>> Have you got any example of how to implement a simple queue that use 
>> the "fewestcalls" strategy?
>>
>> Best Regards
>>
>> Salvatore
>>
>>
>> ------------------------------------------------------------------------
>>
>> Da: asterisk-dev-bounces at lists.digium.com
>> A: "Asterisk Developers Mailing List" asterisk-dev at lists.digium.com
>> Cc:
>> Data: Tue, 22 Nov 2016 10:04:58 -0500
>> Oggetto: Re: [asterisk-dev] AGI:async
>>
>> Hi Salvatore,
>>
>> I don't have any experience with the "Queue" command, as I basically 
>> pass the call directly to agi:async and control the call every step 
>> of the way from my C program (where I've implemented my own 
>> queue/call tracking).
>>
>> However, here are my suggestions:
>>
>> 1) Upon taking a quick look at 
>> http://www.voip-info.org/wiki/view/Asterisk+cmd+Queue, I think your 
>> "failed to add agi command to channel.." error may be since the call 
>> is not answered yet.  You'll notice on that web page that the dial 
>> plan calls "Answer" before Queue in example 1, and Playback (which 
>> itself internally answers the call to be able to then play the 
>> announcement) before Queue in example 3 (I'm skipping example 2, as 
>> it's a link to a German site and not directly on the page).  Please 
>> try one of those commands, before calling your Queue command, and I 
>> think you'll get better results.
>>
>> 2) You are correct that AGI(agi:async) stops execution of the 
>> dialplan.  In your attempt to execute AGI(agi:async) before Queue, 
>> that's exactly what happened.  The call entered agi:async mode and 
>> from that point on you are supposed to issue commands to control the 
>> call from your AGI program.
>>
>> That's probably the reason you don't hear ringing on the phone, as 
>> (in your AGI call on priority 1 example) your inbound call never 
>> reached the "Queue" dialplan priority.
>>
>> 3) This is a minor detail, but I'm not sure your syntax is correct.  
>> Try removing the comma before the "n", so that you have the following 
>> in your dial plan: "same => n,AGI(agi:async)"
>>
>> Hope this helps,
>>
>> Daniel
>>
>>
>>
>> On 11/22/2016 05:03 AM, Salvatore Franco wrote:
>>> Hi,
>>> I'm trying to answer a call that is in Queue through AMI, launching 
>>> AGI command ANSWER.
>>> I read about putting AGI(agi:async) in extensions.conf dialplan but 
>>> if i set in this order:
>>>
>>> exten=> 1000,1,Queue(queuename)
>>> same=>        ,n,AGI(agi:async)
>>>
>>> and try to answer using AMI the response is : failed to add agi 
>>> command to channel XXX queue.
>>>
>>> Else if i set the dial plan in this order:
>>>
>>>
>>> exten=>1000,1,AGI(agi:async)
>>> same=>       ,n,Queue(queuename)
>>>
>>>  the phone doesn't ring and the command execute successful, but 
>>> nothing happens. Isn't agi:async "really" async but stops execution 
>>> of the dialplan?
>>>
>>> Any suggestions?
>>>
>>>
>>> Thanks
>>>
>>> Best Regards
>>>
>>> *Salvatore Franco*
>>>
>>>
>>>
>>>
>>
>>
>
>
> -- 
> Daniel McFarlane
> Szeto Technologies Inc.
> 885 Ellingham Ave
> Pointe Claire, Québec
> Canada, H9R 5E8
> tel: (514) 630-7878
> fax: (514) 630-6394
> http://www.szeto.ca
>
>

-- 
Daniel McFarlane
Szeto Technologies Inc.
885 Ellingham Ave
Pointe Claire, Québec
Canada, H9R 5E8
tel: (514) 630-7878
fax: (514) 630-6394
http://www.szeto.ca

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