> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 09, 2001 12:33 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: RE: [Sip-implementors] the meaning of "copy"
>
>
> Jonathan, thank you for your reply.
>
> Can you also modify non-SIP-URL part of "From" and "To"
> (excluding the Tag
> param) headers in subsequent messages? From example, in
> initial INVITE we
> have: From: "A. G. Bell" <sip:[EMAIL PROTECTED]>. Can we
> have in 200
> response or ACK like this: From: sip:[EMAIL PROTECTED] ?
Since it is only the URI and tag which are used for call leg matching, this
would be OK, although I don't recommend you muck around with these for no
reason.
>
> It seems to me that byte-by-byte is more robust and easier to
> compare in
> terms of "From" and "To" headers. What are the potential reasons that
> somebody wants to modify these two headers in addition to the
> "Tag" param?
The problem has to do with storing whitespace on other formatting characters
when parsing. I'd like to be able to parse a header, discard any LWS, and
reconstruct the header. This should be "equivalent" based on concrete
matching rules, to the initial version.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000
http://www.dynamicsoft.com
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