[Users] Accounting wrong BYEs

Klaus Darilion klaus.mailinglists at pernau.at
Thu Jul 20 12:32:15 CEST 2006


Bogdan-Andrei Iancu wrote:
> was referring to a forking scenario:
> 
> UAC           P                UAS
>              <----------------- 180 from UAS1
> <--------------                             <----------------- 183 from 
> UAS1
> <--------------
>              <----------------- 180 from UAS2
> <---x---x---x--                  this will not be relayed to UAC since a 
> higher reply code was already sent,
>                                 so the UAS2 will not be visible
> 
> regards,
> bogdan
> 
> Klaus Darilion wrote:
> 
>>>
>>>
>>> First of all the UAC may not discover all the branches based on 
>>> To-tag - there might be branches that haven't sent any reply, or 
>>> replies were absorbed by the forking server (ex: 180 after 183 will 
>>> not be relayed).

Is this standard conform? What about

UAC                        P                UAS
  <----------------- 183 from UAS1  <--------------
           ????      180 from UAS1  <--------------

Will this be forwarded?

klaus

>>
>>
>> Really? Why not? This is strictly valid and make sense. All gateways 
>> does this:
>>   INVITE  --> SETUP
>>   ...
>>   183 <--  PROGRESS w/ inband audio
>>   180 <--  ALERTING
>>
> 





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