[SIPForum-discussion] A query regarding the REGISTER request

[Abhishek Mishra]

Hi Chandan,

Use of Via header is explained in RFC 3261 and remains same for all the
message.

Via contains the address (pc33.atlanta.com) at which Alice is
   expecting to receive responses to this request.  It also contains a
   branch parameter that identifies this transaction.


Kind Regards,
-Abhishek

On Thu, 2007-07-26 at 21:17, chandan kumar anjani wrote:
> Hi,
> 
> As i know from the RFC 3261 that there are 6 headers which are
> mandatory in any
> SIP request ( To,From,Call-ID,CSeq,MaxForward and Via)
> but RFC 3261 donot mention anything abt the Via in case of REGISTER
> request. 
> 
> Please tell what is the reason behind this.
> 
> Regards
> 
> 
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