[SIPForum-discussion] A query regarding the REGISTER request

Abhishek Mishra abhishek.mishra at globallogic.com
Fri Jul 27 04:32:41 UTC 2007

Hi Chandan,

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

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,

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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