[SIPForum-discussion] A question about INVITE fork

[vijay kant gupta]

This the proxy responsibility to send a cancel request for the renaming
Client whose response come late to proxy.
To handle this situation Proxy has to send Cancel or *487 Request cancelled
.


Regard
Vijay Gupta
*


On Thu, May 7, 2009 at 5:04 PM, Leks™ <rajasekhar.l at gmail.com> wrote:

> After receiving 200 OK From any UAS, proxy sends CANCEL to the remaining
> UAS.
> -Raaz
>
>
> On Wed, May 6, 2009 at 8:19 PM, Sunny <guangu.he at gmail.com> wrote:
>
>> Hi allI have a question about INVITE fork. see follow picture.
>>
>> UAC                     Proxy            UAS1             UAS2
>>    |---------INVITE----->|                      |                     |
>>    |                          |-------INVITE--->|                     |
>>    |                          |----------------------|-------INVITE-->|
>>    |                          |<-------200--------|                     |
>>    |<--------200---------- |                      |                     |
>>    |----------ACK------->|                       |                    |
>>    |                          |---------ACK----->|                    |
>>    |                          |                       |
>>  |
>>    |                          |<-------------180---|--------------------|
>>    |<------180-------------|
>>
>> when UAC received UAS2 180, the UAC have not corresponding transaction,the
>> UAC will discard 180 or other?
>>
>> --
>> Thanks
>>
>> Sunny
>>
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