I was just there in that section. Here are some quotes from the
section that Brett mentioned:
[H4.2] also specifies that multiple header fields of the same field
name whose value is a comma-separated list can be combined into one
header field. That applies to SIP as well, but the specific rule is
different because of the different grammars. Specifically, any SIP
header whose grammar is of the form
header = "header-name" HCOLON header-value *(COMMA header-value)
allows for combining header fields of the same name into a comma-
separated list.
Implementations MUST be able to process multiple header field rows
with the same name in any combination of the single-value-per-line or
comma-separated value forms.
--
Raj Jain
On Tue, Jun 17, 2008 at 6:43 PM, Brett Tate <[EMAIL PROTECTED]> wrote:
> Yes; see RFC 3261 section 7.3.
>
>
>> -----Original Message-----
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On
>> Behalf Of Iñaki Baz Castillo
>> Sent: Tuesday, June 17, 2008 6:31 PM
>> To: [email protected]
>> Subject: [Sip-implementors] Can "Allow" header appear multiple times?
>>
>> Hi, imagine I receive a request with those "Allow" headers:
>>
>> Allow: INVITE, ACK
>> Allow: OPTIONS, CANCEL, BYE
>>
>> Should the receiver parse both "Allow" headers and sum the methods?
>> This is: is "Allow" a multivalue header like "Via", "Route",
>> "Record-Route", "Contact" and so?
>>
>> Thanks a lot.
>>
>>
>> --
>> Iñaki Baz Castillo
>>
>> _______________________________________________
>> Sip-implementors mailing list
>> [email protected]
>> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
>>
>
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