[SIPForum-discussion] HELP

Mon May 19 10:40:27 UTC 2008

Hi,

Well I don’t think that is valid, but I had given this example purly on
syntax basis and had not checked on the semantics.. :-)

Ganesh

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From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Donald Lee
Sent: Monday, May 19, 2008 2:50 PM
To: 杨伟
Cc: Bob Penfield; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] HELP

Please notice that the two "Via" here have the same branch ID. I just want
to know if this valid?

Thanks.

On 5/19/08, 杨伟 <shyw13 at gmail.com> wrote: 

2008/5/16, Bob Penfield <BPenfield at acmepacket.com>: 

Either format is valid. Like may SIP header, the Via can contain multiple
values separated by commas. Note however if it is on multiple lines, then
the second line must begin with at least one space so it is seen as a
contnuation line.

Via: SIP/2.0/UDP  <http://server10.biloxi.com/>
server10.biloxi.com;branch=z9hG4bK776asdhds;received= <http://192.0.2.1/>
192.0.2.1,<CR><LF>

<SP>SIP/2.0/UDP  <http://server11.biloxi.com/>
server11.biloxi.com;branch=z9hG2fdK776asdhds;received= <http://192.0.2.2/>
192.0.2.2 

If I wrote it in this form:

Via: SIP/2.0/UDP  <http://server10.biloxi.com/>
server10.biloxi.com;branch=z9hG4bK776asdhds;received= <http://192.0.2.1/>
192.0.2.1,<CR><LF>

Via: SIP/2.0/UDP  <http://server11.biloxi.com/>
server11.biloxi.com;branch=z9hG2fdK776asdhds;received= <http://192.0.2.2/>
192.0.2.2 

Is it identical with yours? 

cheers,

(-:bob

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From: discussion-bounces at sipforum.org [discussion-bounces at sipforum.org] On
Behalf Of Niketa Pal [pal.niketa at gmail.com]
Sent: Friday, May 16, 2008 2:11 AM
To: Ganesh Bhattathiri
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] HELP

Hi Ganesh,

The second format is right, mentioning two 'Via' headers. First format is
wrong. Stack would give parsing error if first format is used.

Regards,
Niketa

On Fri, May 16, 2008 at 11:22 AM, Ganesh Bhattathiri
<ganesh_bhattathiri at persistent.co.in> wrote:

Hi everyone,

Sorry to trouble again, I wanted to know if there are multiple via headers
in a sip request could the header be written in the following manner?

" Via: SIP/2.0/UDP server10.biloxi.com <http://server10.biloxi.com/>
;branch=z9hG4bK776asdhds;received=192.0.2.1 <http://192.0.2.1/> , 

SIP/2.0/UDP server11.biloxi.com <http://server11.biloxi.com/>
;branch=z9hG2fdK776asdhds;received=192.0.2.2 <http://192.0.2.2/>  "

Or do we write  it as,

" Via: SIP/2.0/UDP server10.biloxi.com <http://server10.biloxi.com/>
;branch=z9hG4bK776asdhds;received=192.0.2.1 <http://192.0.2.1/>  

   Via: SIP/2.0/UDP server11.biloxi.com <http://server11.biloxi.com/>
;branch=z9hG2fdK776asdhds;received=192.0.2.2 <http://192.0.2.2/>  "

And if it is the later then is the first header format wrong? Or is it
possible to write the header in that format?

Awaiting reply.

Thanks in advance

Ganesh

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-- 
BR
Donald 

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