[reSIProcate] crossing re-invites 491 question

[Justin Matthews]

With the following scenario, is resip/dum doing anything wrong or could the
processing be improved somehow:

 

UAC                       UAS (resip/DUM)

<INVITE/200/ACK>  - call setup is fine.

 

reINVITE ->

100 Trying <-   (provideOffer() is called via DUM at approx the same time)

reINVITE <-

--- UAC's re-invite is processed by DUM ---

491 <-

491 ->

 

At this point the UAC ignores the 491 (possibly because it got a 100???) and
then eventually tears down the call.

 

I would expect the UAC to kill it's re-invite after getting the 491 and try
the re-invite again according to 491 processing rules.

 

Any help would be appreciated.

 

Thanks,

 

-justin 

 

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