Hello,

Please remove me from this mailing list.

Regards,
SREE
--------------------------------------------
On Fri, 21/3/14, Paul Kyzivat <[email protected]> wrote:

 Subject: Re: [Sip-implementors] Query on Contact header parameter
 To: [email protected]
 Date: Friday, 21 March, 2014, 8:43 AM
 
 You have now received answers to the
 question you asked.
 But not to the one you should have asked: how can you do
 this in a way that doesn't violate standards?
 
 The procedure for managing new header field parameters was
 updated by RFC 3968. There is an IANA registry, and you need
 an RFC to define a new one. I assume you haven't published
 an RFC to define your proprietary parameter.
 
 An alternative that is open to you is a feature tag, as
 defined in RFC 3840. In particular you can use feature tags
 from the "URI tree" to express vendor-specific features.
 
 UAs are expected to ignore parameters they don't understand,
 so you can "get away" with using an illegal unregistered
 parameter, but you may run into trouble if the name you
 choose is later chosen as the name of some standard option.
 Or if you do interop testing, someone may identify you as
 non-complying for using a non-standard option.
 
     Thanks,
     Paul
 
 On 3/21/14 6:33 AM, J C Sunil Kumar Reddy wrote:
 > Hi All,
 > 
 > I need to send a proprietary parameter in contact
 header in an INVITE
 > message to other end.
 > Something like this:
 > 
 > Contact: "Sunil"
 <sip:[email protected];transport=tcp>;category:strvalue
 > 
 > Here "category:strvalue" is my proprietary parameter.
 Where "category" is a
 > param name and "strvalue" is the value.
 > 
 > What does the SIP standard specify? whether it should
 be colon(:) or
 > Equals(=)?
 > I mean according to SIP standards, which is the correct
 one?
 > 
 > category:strvalue
 > or
 > category=strvalue
 > or something else?
 > 
 > Regards,
 > Sunil
 > _______________________________________________
 > Sip-implementors mailing list
 > [email protected]
 > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
 > 
 
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