Actually you missed the word "address-of-record". Its talking about that.
section 10.2 says "From: The From header field contains the address-of-record of
the person responsible for the registration. The value is
the same as the To header field unless the request is a
third-party registration."
You can look up the address-of-record definition in section 6. You will find that its
a SIP(S) URI.
Regards,
Hisham Khartabil
> -----Original Message-----
> From: ext Aymeric MOIZARD [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 26, 2002 11:47 AM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] tag in REGISTER?
>
>
> Hi
>
> This are taken out of bis-08:
>
> "8.1.1.3 From" which is valid for REGISTER says:
>
> "The From field MUST contain a new "tag" parameter, chosen by the
> UAC.
> See Section 19.3 for details on choosing a tag."
>
> Section "10.2 Constructing the REGISTER Request" says
>
> "From: The value is he same as the To header field unless the
> request is a third-party registration."
>
> Note that this sentence means that we "copy" the To header and
> the To header does not contains TAG!
>
> Section 10.2 say nothing about tags and the draft
> draft-ietf-sip-call-flows-05.txt shows REGISTER request
> without any tag in the to and from fields.
>
> Also, I'm testing a SIP phone that includes 2 differents tags
> in the "From" and "To" headers?
>
> 1 solution:
> rfc2543-08 does not mandate tag in The To header. (in request like
> register)
> rfc2543-08 mandate to copy the to header in the from field for
> registration.
> (so the to header does not include tag???)
>
> This is not compliant with section 8.1.1.3
>
> 2 solution:
> rfc2543-08 does not mandate tag in The To header
> rfc2543-08 mandate to copy the to header in the from field for
> registration.
> rfc2543-08 mandate tag in The From header so we add a tag.
>
> In fact, the sentence in section "10.2 Constructing the REGISTER
> Request"
> saying that the from is a copy of the to is not true any
> more because
> a tag has been added!
>
> 3 solution: (choosen by the SIP phone I'm testing.)
> The To and From feild contains 2 different tag in the from and to.
>
> Again, From is not a copy of To... and the To contains a tag which
> appears to be strange??
>
> 4 solution: (I don't think it's valid, but it's better than solution 3
> :)
> The To and From contains the same tag. From is a copy of the To.
>
> Issue: the To contains a tag which appears to be strange??
>
>
> What's the solution choosed for rfc2543-08?
> I'm sure solution 1 is valid because of rfc2543 backward
> compatibility.
> What about the two other solutions.
>
> Also, should we add a tag in the final response if the To header
> does not contains one?
>
> Thanks
> Aymeric
> _______________________________________________
> Sip-implementors mailing list
> [EMAIL PROTECTED]
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
