[Freeswitch-users] B-Leg / A-Leg Race Condition

Fri Aug 31 11:14:22 MSD 2012

Well that narrow downs the possible solutions to doing some stuff on FS
only ! - I really think that Stopping or applying a work-around for the
re-invite from Broadsoft will get this fixed. I did some googling on the
SIP 491 code and re-invites in FS and mostly they point to session timers
or some media_bridging option in dialplan.

On Fri, Aug 31, 2012 at 12:03 PM, Mike Burlingame <mike.burlingame at me.com>wrote:

> The Sonus and M6 are out of my control they belong to my upstream and
> downstream so I have no access to them
>
> Broadsoft support will not work this issue because FS ACKs the 200 OK so
> dialog is completed at least on the B-Leg so that's when the M6 sends the
> 2nd invite however the dialog has not completed on the A-Leg but FS still
> passes the Invite along resulting in the 491
>
>
> Sent from my iPhone 4S
>
> On Aug 30, 2012, at 11:42 PM, SamyGo <govoiper at gmail.com> wrote:
>
> OK, and can you see whats happening inside the SONUS when it gets the
> second invite (debug logs etc)? Can you control the M6 to stop re-invites !?
>
> On Fri, Aug 31, 2012 at 10:29 AM, Mike Burlingame <mike.burlingame at me.com>wrote:
>
>> Sure I will put logs and sip dump up tomorrow A-Leg == Sonus B-Leg ==
>> Broadsoft M6
>>
>> Sent from my iPhone 4S
>>
>> On Aug 30, 2012, at 10:24 PM, SamyGo <govoiper at gmail.com> wrote:
>>
>> Hi,
>> Can you please manage a proper sip trace for this ! I'd really love to
>> troubleshoot and analyse the sip traces.
>> What is the equipment on your A-leg ?
>>
>> BR
>> Sammy
>>
>>
>>
>> On Fri, Aug 31, 2012 at 3:28 AM, Mike Burlingame <mike.burlingame at me.com>wrote:
>>
>>> I would like to add an update to this and maybe someone has some other
>>> suggestions - It does look like that FS is disconnecting the call with
>>> cause code 31  [NORMAL_UNSPECIFIED] I did not notice the time stamp
>>> difference on the Bye when I first looked at the log's
>>>
>>> The basis of the issue still stands a 491 Results in the B-Leg being
>>> disconnected
>>>
>>> On Aug 24, 2012, at 12:53 PM, Mike Burlingame <mike.burlingame at me.com>
>>> wrote:
>>>
>>> We are seeing some instances when we send a invite from the B-Leg back
>>> to FS and FS passes the invite to the A-Leg that the dialog on the A-Leg
>>> has not fully completed yet causing a return of a 491 from the A-Leg side
>>> causing the call to be disconnected. wanted to see if anyone else has seen
>>> something like this while running FS and if anyone had any suggestions on a
>>> fix?
>>>
>>> A-Leg
>>> Invite into Freeswitch
>>> 100 Trying back from FS to A-Leg
>>> 180 Ringing from FS to A-Leg
>>> 200 OK from FS to A-Leg at 15:08:14.638799
>>> Invite from FS to A-Leg (From B-Leg below) at 15:08:14.749515
>>> 100 Giving a try form A-Leg to FS at 15:08:14.749757
>>> 491 From A-Leg to FS at 15:08:14.780968
>>> ACK from FS to A-Leg at 15:08:14.781102
>>> ACK from FS to A-Leg at 15:08:14.797143
>>> BYE from A-LEG to FS 15:11:10.791963
>>>
>>>    481 Call Does Not Exist back to A-LEG
>>>
>>>
>>> B-Leg
>>> Invite from Freeswitch to B-Leg
>>> 100 Giving a try from B-Leg
>>> 180 Ringing from B-Leg
>>> 200 OK  from B-Leg at 15:08:14.635670
>>> ACK from FS to B-Leg  at 15:08:14.637044
>>> Invite from B-Leg to FS at 15:08:14.748623
>>> 100 Trying from FS to B-Leg at 15:08:14.748954
>>> 491 from FS to B-Leg at 15:08:14.782169
>>> ACK from B-Leg to FS at 15:08:14.782372
>>> BYE from FS to B-Leg at 15:08:14.790714 with Cause Code 31
>>>
>>>
>>>
>>> _________________________________________________________________________
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>>>
>>> 
>>> 
>>>
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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
>>
>> 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
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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
>>
>> 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
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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
>
> 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
>
>
> _________________________________________________________________________
> 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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