asterisk users - Feb 2011 - REFER and dialplan broken (as documented in chan_sip.c on line 11951)

There is a problem when transferring calls using REFER, asterisk does not
notify dialplan. I've been told to use AMI as a workaround to notify my
dialplan/routing program but that would require a huge change to our
software. I was wondering if there is any intention of fixing this problem.
Here is issue as stated in chan_sip.c
"this is currently broken as we have no way of telling the dialplan engine
whether a transfer succeeds or fails."
Thanks.
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_____  

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of vip killa
Sent: Wednesday, February 23, 2011 10:11 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] REFER and dialplan broken (as documented
inchan_sip.c on line 11951)

 

There is a problem when transferring calls using REFER, asterisk does not
notify dialplan. I've been told to use AMI as a workaround to notify my
dialplan/routing program but that would require a huge change to our
software. I was wondering if there is any intention of fixing this problem.

Here is issue as stated in chan_sip.c

"this is currently broken as we have no way of telling the dialplan engine
whether a transfer succeeds or fails."

Thanks. 

 

I'm quite certain that this problem is being considered (for reference, this
is a 1.8.X issue).  If you aren't satisfied with the progress being made,
you should research your own solution and/or offer a bounty.

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On Wed, 23 Feb 2011, Danny Nicholas wrote:
> 
>
____________________________________________________________________________________________________________________________________________________________
> 
> 
> From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of vip killa
> Sent: Wednesday, February 23, 2011 12:44 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] REFER and dialplan broken (as documented
inchan_sip.c on line 11951)
> 
> ?
> 
> I recognize all the options given yet as I explained before they are not
viable. I do not have the resources to pay someone, I do not have the expertise
to
> fix this issue because according to an asterisk developer "any fix in
that area would be deeply architectural in nature"... what other options
are there?
> 
> ?
> 
> <snip>
> 
> From what I see, the ?source fix? on the Asterisk level would indeed be a
major undertaking.? But since you are using an AGI to control the Queue command
> instead of using it from the dialplan, you have more control over this
problem than you realize.? For simplicity of illustration, let?s say your AGI
simply
> wants to take a call and send it to the next agent in the queue. Your
Agents are Agent007, AgentQ and AgentM.? Because you did the Polycom transfer
from
> Agent007 to pussygalore, Agent007 is marked as busy in the queue although
the call is no longer active for 007. One possible workaround would be to have a
> duplicate ?bail queue? set up the same way.? If my AGI does a ?core show
channels? and sees that 007 is not on the phone, I can do queue(bail) instead of
> queue(normal).
> 
> ?
>
Watch out for race conditions doing things like this...

j