Subject: Re: [Sip] sip grammar

From: Jonathan Rosenberg <[email-masked]>
Date: Thu, 03 Apr 2003 04:15:06 -0500

The example message is not correct. The angle brackets need to be around 
the URI.

-Jonathan R.

murali wrote:
> Hi,
> 
> 	When i was going through the SIP Document: draft-ietf-sip-call-flows-05.txt
> i came across a From Header which is like this
> 
> INVITE sip:[email-masked];user=phone SIP/2.0
> Via: SIP/2.0/UDP ift.here.com:5060
> From: sip:[email-masked];user=phone
> To: <sip:[email-masked];user=phone>
> Call-ID: [email-masked]
> CSeq: 17 INVITE
> Contact: <sip:[email-masked];user=phone>
> Content-Type: application/sdp
> Content-Length: 146
> 
> v=0
> o=IFAXTERMINAL01 2890844527 2890844527 IN IP4 ift.here.com
> s=Session SDP
> c=IN IP4 iftmg.here.com
> t=0 0
> m=audio 3456 RTP/AVP 0
> a=rtpmap:0 PCMU/8000
> (Ref: 3.1.7 Successful SIP to SIP with re-INVITE) 
> 
> but Section 20.20 of RFC 3261 says that
> "Even if the "display-name" is empty, the "name-addr" form MUST be 
> used if the "addr-spec" contains a comma, question mark, or semicolon"
> 
> so, i'd like to know if the above usage is correct?
>  In case it is correct how do i differentiate between the from parameters and URI-parameters as both are delimited by ;.
> I mean to say that i can very well take that(user=phone) as generic parameter in from parameters instead of taking it as uri parameter
> 
> Thanks in advance
> Murali
> 
> 
> 
> -------
> Murali Voleti,
> #503,Maheswari complex,
> Masab Tank,
> Hyderabad
> Tele:(040) 6502272 ext:211
> 
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-- 
Jonathan D. Rosenberg, Ph.D.                600 Lanidex Plaza
Chief Scientist                             Parsippany, NJ 07054-2711
dynamicsoft
[email-masked]                     FAX:   (973) 952-5050
http://www.jdrosen.net                      PHONE: (973) 952-5000
http://www.dynamicsoft.com

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