[asterisk-dev] Asterisk at SIPit23 in Lannion France

[Johansson Olle E]

22 okt 2008 kl. 11.31 skrev Klaus Darilion:

>
>
> Kevin P. Fleming schrieb:
>> Klaus Darilion wrote:
>>
>>> Really no problems at Sipit although 1.4 does not handle to-tags  
>>> correctly?
>>>
>>> btw: is totag handling fixed in 1.6?
>>
>> We ran all our tests with pedantic mode enabled, and only ran into  
>> one
>> interop problem with tag handling, which turned out to be the other
>> party's fault (they had problems with interop with other  
>> implementations
>> as well, not just Asterisk).
>>
>> Are you referring to an open issue on the bug tracker or something  
>> else
>> with more details?
>
> I do not know if it is fixed in Asterisk 1.6, but the bug is still in
> 1.4.21.2:
> pedantic=yes
>
> Asterisk             SIP proxy          phone1      phone2
>   ------INVITE--------->
>                         -----------INVITE->
>
>                         ----------------------INVITE->
>
>                         <----180-----------
>   <----180--------------
>                         <---------------180-----------
>   <----180--------------
>                         <---------------200-----------
>   <----200--------------
> The 200 will be ignored by Asterisk.
>
> In pedantic mode Asterisk learns the totag in the first response and
> ignore all other responses with different totag. Thus, Asterisk can  
> not
> handle multiple early dialogs. The bugfix (without making Asterisk  
> real
> multi-early-dialog-aware) would be to learn the totag only in the  
> final
> response, not in the provisional response.

I fixed this years ago, so it seems like some bugs come back to hunt  
you again, and again, and again...

/O