Re: reuse callID by proxy

Lebing,

If you are implementing a 'normal' proxy, the Call-ID needs to remain the 
same. If you are implementing a B2BUA, it should be changed. The S-CSCF 
won't care either way, as it cannot tell whether it was changed or not.

Regards,

Jeroen

----- Original Message ----- 
From: "Lebing Xie" <[email protected]>
To: "sip mailing" <[email protected]>
Sent: Wednesday, September 27, 2006 1:12 PM
Subject: [nist-sip] reuse callID by proxy


> Hallo,
>
> I am working on a sip proxy based on JAIN Stack 1.2, can the cloned and
> proxyed initial request use the same call-id as the originating one? I
> do not think it can and should not, for a proxy is implemented as a
> B2BUA(or not?)
>
> But if other parties on single path (e.g S-CSCF) need to check the
> callID for some kind of business logic, a changed callid could break it.
> So any idea about it?
>
> urs Lebing
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