[Freeswitch-users] Terminating calls prior to answer using api

Tue Feb 12 00:37:51 MSK 2013

Try SWITCH_CAUSE_PICKED_OFF or SWITCH_CAUSE_LOSE_RACE that will inject
headers to the phone telling it that the call was completed elsewhere which
makes most of them skip counting it as an error.

On Mon, Feb 11, 2013 at 2:07 PM, Steven Ayre <steveayre at gmail.com> wrote:

> NOTIFY messages are a SIP feature outside of an INVITE call flow. Ending
> the call using 200+BYE, 4xx, 5xx or 6xx are your only options I'm afraid.
>
> I'm writing a CTI application so terminating the call via the api prior to
>> answer without errors is really important.
>
>
> Any call that's unanswered is a failed call, but that's not necessarily an
> error (eg user busy).
>
> I understand your concern that the caller might not know if their call
> succeeded or not... Is there any possibility perhaps to answer the call,
> send it to a playback (eg 'your request was successful') and then hangup?
>
> -Steve
>
>
>
>
> On 11 February 2013 18:37, Gary Foreman <gaz.foreman at gmail.com> wrote:
>
>> I was concerned that might be the case, I have managed to get different
>> errors by send alternative hangup codes "user_busy" for example is
>> recognised but as you say all are still errors.
>>
>>  I'm planning on using Polycom sip phones, does anyone know if it is
>> possible to end an unanswered call using a notify message or something?
>> Like the talk sip notify message used to answer.
>>
>> I'm writing a CTI application so terminating the call via the api prior
>> to answer without errors is really important.
>>
>> Thanks again
>>
>>
>>  On Mon, Feb 11, 2013 at 6:07 PM, <
>> freeswitch-users-request at lists.freeswitch.org> wrote:
>>
>>>  Send FreeSWITCH-users mailing list submissions to
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>>> When replying, please edit your Subject line so it is more specific
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>>>
>>> Today's Topics:
>>>
>>>    1. Re: Throttle Error (Avi Marcus)
>>>    2. Re: Terminating calls prior to answer using api (Steven Ayre)
>>>    3. Re: Terminating calls prior to answer using api (Steven Ayre)
>>>    4. High Availability Cluster Module for FreeSWITCH   - Major News
>>>       Update (Eliot Gable)
>>>    5. Re: High Availability Cluster Module for  FreeSWITCH
>>>       (Luis Daniel Lucio Quiroz)
>>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Avi Marcus <avi at avimarcus.net>
>>> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>>> Cc:
>>> Date: Mon, 11 Feb 2013 19:09:33 +0200
>>> Subject: Re: [Freeswitch-users] Throttle Error
>>>
>>> As Ken's original message said, try "fsctl sps 40" or the like.
>>> He said that otherwise only a restart, not reload xml would work.
>>>
>>> -Avi
>>> (This message was painstakingly thumbed out on my mobile, so apologies
>>> for brevity and errors.)
>>>
>>> On Feb 11, 2013 6:57 PM, "Archana Venugopan" <a.venugopan at mundio.com>
>>> wrote:
>>>
>>>  Hi,****
>>>
>>> ** **
>>>
>>> When I gave fsctl sps it shows still 10. Can you please tell me apart
>>> from reload_xml do we have to anyother thing after changing switch.conf.xml?
>>> ****
>>>
>>> ** **
>>>
>>> Regards,****
>>>
>>> Archana****
>>>
>>> ** **
>>>
>>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Archana
>>> Venugopan
>>> *Sent:* 11 February 2013 16:37
>>>
>>>
>>> To: FreeSWITCH Users Help
>>> Subject: Re: [Freeswitch-users] Throttle Error
>>>
>>>
>>>
>>>
>>>
>>> Ya i did re-loaded the xml. And this is what I see in status
>>>
>>>
>>>
>>> UP 0 years, 6 days, 9 hours, 3...
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
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>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Steven Ayre <steveayre at gmail.com>
>>> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>>> Cc:
>>> Date: Mon, 11 Feb 2013 17:40:57 +0000
>>> Subject: Re: [Freeswitch-users] Terminating calls prior to answer using
>>> api
>>> You either answer a call with 200, redirect with 3xx, or give an error
>>> 4xx 5xx or 6xx... basically without answering your only option is to return
>>> an error.
>>>
>>> The specific error code can show a varying number of levels of 'error'
>>> though. Some might be a perfectly valid result (eg 486 User Busy) while
>>> other's imply a more serious error (eg 500 Server Internal Error). But
>>> there's not really one for a successful unanswered call.
>>>
>>> How your phone behaves on the various errors is really up to the SIP
>>> client though. A generic unable to connect message doesn't sound very
>>> useful, I'd expect different error tones depending on the response code.
>>>
>>> -Steve
>>>
>>>
>>>
>>> On 11 February 2013 15:30, Gary Foreman <gaz.foreman at gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> I'm having an issue gracefully terminating calls prior to them being
>>>> answered.
>>>>
>>>> When I issue the uuid_kill command prior to the call being answered my
>>>> sip client gives an error "unable to connect" with an error tone.
>>>>
>>>> Is it possible to cancel the client dial without causing an error?
>>>> Maybe using a sip notify message or something?
>>>>
>>>> I can't seem to find a list of valid sip notify messages anywhere.
>>>>
>>>> Thanks
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> 
>>>> 
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Steven Ayre <steveayre at gmail.com>
>>> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>>> Cc:
>>> Date: Mon, 11 Feb 2013 17:42:51 +0000
>>> Subject: Re: [Freeswitch-users] Terminating calls prior to answer using
>>> api
>>> The NORMAL_CLEARING ISDN clearing cause (16) has no mapping to any SIP
>>> code for example, it's a code you normally would only see a) when the
>>> caller hangs up at any time (regardless of answered or not) or b) when call
>>> has been answered *then* callee hangs up.
>>>
>>> -Steve
>>>
>>>
>>>
>>>
>>> On 11 February 2013 17:40, Steven Ayre <steveayre at gmail.com> wrote:
>>>
>>>> You either answer a call with 200, redirect with 3xx, or give an error
>>>> 4xx 5xx or 6xx... basically without answering your only option is to return
>>>> an error.
>>>>
>>>> The specific error code can show a varying number of levels of 'error'
>>>> though. Some might be a perfectly valid result (eg 486 User Busy) while
>>>> other's imply a more serious error (eg 500 Server Internal Error). But
>>>> there's not really one for a successful unanswered call.
>>>>
>>>> How your phone behaves on the various errors is really up to the SIP
>>>> client though. A generic unable to connect message doesn't sound very
>>>> useful, I'd expect different error tones depending on the response code.
>>>>
>>>> -Steve
>>>>
>>>>
>>>>
>>>> On 11 February 2013 15:30, Gary Foreman <gaz.foreman at gmail.com> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I'm having an issue gracefully terminating calls prior to them being
>>>>> answered.
>>>>>
>>>>> When I issue the uuid_kill command prior to the call being answered my
>>>>> sip client gives an error "unable to connect" with an error tone.
>>>>>
>>>>> Is it possible to cancel the client dial without causing an error?
>>>>> Maybe using a sip notify message or something?
>>>>>
>>>>> I can't seem to find a list of valid sip notify messages anywhere.
>>>>>
>>>>> Thanks
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Eliot Gable <egable+freeswitch at gmail.com>
>>> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>>> Cc:
>>> Date: Mon, 11 Feb 2013 12:44:55 -0500
>>> Subject: [Freeswitch-users] High Availability Cluster Module for
>>> FreeSWITCH - Major News Update
>>> After discussing this project in further detail with Tony, I have
>>> decided to cancel the Kickstarter project. Funding will now go through
>>> FreeSWITCH Solutions. If you would like to contribute towards making
>>> mod_ha_cluster a reality, please send contributions to FreeSWITCH Solutions.
>>>
>>> Thanks!
>>>
>>> --
>>> Eliot Gable
>>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Luis Daniel Lucio Quiroz <luis.daniel.lucio at gmail.com>
>>> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>>> Cc:
>>> Date: Mon, 11 Feb 2013 13:06:16 -0500
>>> Subject: Re: [Freeswitch-users] High Availability Cluster Module for
>>> FreeSWITCH
>>> Is the latest snapshot ofyour module at
>>> git://git.freeswitch.org/freeswitch-contrib.git ?
>>>
>>> 2013/2/11 Eliot Gable <egable+freeswitch at gmail.com>:
>>> > On Mon, Feb 11, 2013 at 7:36 AM, Marcin Gozdalik <gozdal at gmail.com>
>>> wrote:
>>> >>
>>> >> +1
>>> >>
>>> >> I do not doubt mod_ha is necessary inside of FS  and it may be
>>> >> better/simpler than writing Pacemaker resource agent, but writing
>>> >> yet-another-cluster-communication-engine is IMHO the wrong way to go
>>> >> and using Corosync for communication will give a lot of value from
>>> >> mature codebase.
>>> >>
>>> >
>>> > I understand what you are saying, but what I am trying to get across
>>> is that
>>> > I am not writing yet-another-cluster-communication-engine. All I am
>>> really
>>> > doing is combining a multicast messaging API written by Tony and the
>>> event
>>> > API in FS to broadcast existing state information between multiple FS
>>> nodes,
>>> > as well as adding a tiny amount of logic on top of that to coordinate
>>> call
>>> > fail over and recovery. That's probably a little over-simplified, but
>>> it
>>> > gets the point across. The network communication code is already in FS
>>> and
>>> > well tested. The event system is already in FS and well tested. I have
>>> > already written the code to the point that it parses the configuration
>>> files
>>> > and starts sending heartbeats out all of the interfaces configured. I
>>> have
>>> > also already written a lot of the code that deals with the state
>>> > transitions. All I am talking about doing is implementing a tiny little
>>> > finite state machine. It's a pretty trivial programming task. In fact,
>>> I
>>> > think it was covered in my first year at Carnegie Mellon University. Of
>>> > course, I had already figured out how to write such things in high
>>> school, I
>>> > just did not know what it was called at that point. My point is, that
>>> this
>>> > is not yet-another-cluster-communication-engine. It is a very specific
>>> and
>>> > small finite state machine designed solely with the goal in mind of
>>> making
>>> > FS have just enough information to coordinate call fail over
>>> internally. If
>>> > I recall correctly, a lot of people also said writing
>>> > yet-another-VoIP-server was a waste of time, but now we have
>>> FreeSWITCH, and
>>> > it was obviously worth the effort. And I am not even trying to do
>>> something
>>> > as complex as that. If you think this is
>>> > yet-another-cluster-communication-engine, you are missing the point.
>>> It is
>>> > not. It never will be.
>>> >
>>> > Look at Sonus, Genband, Broadsoft, Veraz, etc. All the big-name
>>> > carrier-grade telecom providers have a built-in solution for automatic
>>> call
>>> > fail over. The only way FreeSWITCH will ever compete with such
>>> solutions is
>>> > if it also has that feature. Pacemaker and Corosync are overkill just
>>> to get
>>> > FS to handle single node failures and provide call recovery. It took
>>> me a
>>> > full 3 months of working with them every day to really understand how
>>> to
>>> > deploy them properly in conjunction with FreeSWITCH and Postgres to
>>> provide
>>> > a carrier-grade hot-standby solution which was robust enough to handle
>>> 99%
>>> > of the failures I could throw at it. Granted, this was back when the
>>> > configuration still needed to be written by hand in XML and prior the
>>> > existence of any resource agent for FreeSWITCH. But, even with those
>>> > changes, deploying Pacemaker and Corosync is not a simple task. If
>>> that is
>>> > the requirement for FS to have HA, it will never truly stand a chance
>>> > against commercial offerings.
>>>
>>> >
>>> >
>>> >
>>> >
>>> _________________________________________________________________________
>>> > Professional FreeSWITCH Consulting Services:
>>> > consulting at freeswitch.org
>>> > http://www.freeswitchsolutions.com
>>> >
>>> > 
>>> > 
>>> >
>>> > Official FreeSWITCH Sites
>>> > http://www.freeswitch.org
>>> > http://wiki.freeswitch.org
>>> > http://www.cluecon.com
>>> >
>>> > FreeSWITCH-users mailing list
>>> > FreeSWITCH-users at lists.freeswitch.org
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>>> > UNSUBSCRIBE:
>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> > http://www.freeswitch.org
>>> >
>>>
>>>
>>>
>>> _______________________________________________
>>>
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>>> http://www.freeswitch.org
>>>
>>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
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>>
>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
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>
>

-- 
Anthony Minessale II

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