Basic SIP questions belong on the SIP implementors list,
[EMAIL PROTECTED]

Performing NAT ALG on SIP does not require modification of the Call-ID,
To or From fields. Only the SDP really needs to be modified; the Contact
will need to be modified if the registrations are passing through the nat.

-Jonathan R.

Kevin Yu wrote:

> Hi there,
> 
> This is a newbie question:
> 
> Is there anyone can point me out what is the implementation method to
> calculate Call-ID field in MSN v4.x version?
> 
> The reason I ask is because I need to let MSN ver 4.x pass through our
> NAT
> device; and it seems that we can't just change the ip from local ip to
> public ip inside the SIP packets; something need to be changed in
> call-id
> field and/or tag field of From/TO; any idea?
> 
> regards,
> Kevin
> ----------------------------------------
> 
> 
> _______________________________________________
> Sip mailing list  http://www1.ietf.org/mailman/listinfo/sip
> This list is for NEW development of the core SIP Protocol
> Use [EMAIL PROTECTED] for questions on current sip
> Use [EMAIL PROTECTED] for new developments on the application of sip
> 
> 


-- 
Jonathan D. Rosenberg, Ph.D.            72 Eagle Rock Avenue
Chief Scientist                         First Floor
dynamicsoft                             East Hanover, NJ 07936
[EMAIL PROTECTED]                 FAX: (973) 952-5050
http://www.jdrosen.net                  PH:  (973) 952-5000
http://www.dynamicsoft.com

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