Hi All,
I have a doubt in the rfc 3455 with respect to P-Associated-URI syntax,
Excerpt from RFC-3455
<<<
4.1.2 Usage of the P-Associated-URI header
The registrar inserts the P-Associated-URI header field into the 200
OK response to a REGISTER request. The header field value is
populated with a list containing zero or more URIs that are
associated to the address-of-record.
If the registrar supports the P-Associated-URI header extension, then
the registrar MUST always insert the P-Associated-URI header field in
all the 200 OK responses to a REGISTER request, regardless of whether
the REGISTER was an initial registration, re-registration, or
de-registration and regardless of whether there are zero or more
associated URIs.
>>>
it says if the registrar supports P-Associated-URI, then it has to
insert the P-Asserted-URI in 200 OK response for REGISTER
while defining the ABNF for the same its been mentioned as
P-Associated-URI = "P-Associated-URI" HCOLON
(p-aso-uri-spec)
*(COMMA p-aso-uri-spec)
p-aso-uri-spec = name-addr *(SEMI ai-param)
ai-param = generic-param
This ABNF syntax says as one or more, not zero or more number of
p-aso-uri-spec,
Now my question is?
1) Why do we need to insert the P-Associated-URI header if there are no
entry to fill in ?
2) How do we specify the zero or more P-Associated-URI header values ?
Best Regards,
Nataraju A.B.
Kodiak Networks Ind Pvt Ltd
"Change your thoughts, and you change your world."
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