[SIPForum-discussion] SIP Help
Avishek Chowdhury
avishekchowdhury at tataelxsi.co.in
Tue May 29 08:38:30 UTC 2007
Re: [SIPForum-discussion] SIP HelpHi,
Thanks for the explanation.
But please tell me why an UA must have a separate From address and a separate Contact address?
In other words what is the use of these two addresses if they denote the same UA?
Please clarify
Thanks and Regards,
Avishek
----- Original Message -----
From: Deepanshu
To: Avishek Chowdhury
Cc: discussion at sipforum.org
Sent: Tuesday, May 29, 2007 1:24 PM
Subject: Re: [SIPForum-discussion] SIP Help
From is the logical address (AOR) of the sender.
The Contact header field provides a SIP or SIPS URI that can be used
to contact that specific instance of the UA for subsequent requests.
At most time it's IP address or hostname or GRUU of the sender.
----- Original Message -----
From: Avishek Chowdhury
To: Deepanshu
Cc: discussion at sipforum.org
Sent: Tuesday, May 29, 2007 3:23 PM
Subject: Re: [SIPForum-discussion] SIP Help
Then what is the difference between From and Contact?
Both denote the same "sender"?
----- Original Message -----
From: Deepanshu
To: Avishek Chowdhury
Cc: discussion at sipforum.org
Sent: Tuesday, May 29, 2007 12:45 PM
Subject: Re: [SIPForum-discussion] SIP Help
To and Contact is entirely different
To header is logical address of *receiver*.
Contact header is real address of *sender* who send the SIP message.
----- Original Message -----
From: Avishek Chowdhury
To: Murgesh Kumbar ; Alex Zhang ; gujjenaveen at gmail.com ; ken_ryon at hotmail.com
Cc: discussion at sipforum.org
Sent: Tuesday, May 29, 2007 2:41 PM
Subject: Re: [SIPForum-discussion] SIP Help
Hi,
If To header field denotes the destination address then please explain me the difference of To header field and Contact header field.
Regards,
Avishek
----- Original Message -----
From: Murgesh Kumbar
To: Alex Zhang ; gujjenaveen at gmail.com ; ken_ryon at hotmail.com
Cc: discussion at sipforum.org
Sent: Tuesday, May 29, 2007 11:11 AM
Subject: Re: [SIPForum-discussion] SIP Help
To header is always the final destination in a point to point call.
But, Request URI may or may not change with each hop depending on the routing used.(loose routing or strict routing.
If loose routing is used , then Request URI is same as the value of 'To'
If strict routing is used, Request URI changes with each hop.
Please refer to rfc 3261 for more details.
Hope this is clear.
Regards,
Murgesh
----------------------------------------------------------------------
From: discussion-bounces at sipforum.org on behalf of Zhang, Alex GDNT (External:ASRB:G615)
Sent: Tue 5/29/2007 10:17 AM
To: gujjenaveen at gmail.com; ken_ryon at hotmail.com
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] SIP Help
Can anybody explain the difference between the usages of the To Header
and the Request-URI in the start line? They both specify the destination
of the invite message, but which is used to the real routing purpose?
And how the rest is used?
Thanks,
ALEX
ESN: 8782
-----Original Message-----
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Naveen Gujje
Sent: Tuesday, May 29, 2007 12:20 PM
To: Ken Ryon
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] SIP Help
RFC 3665 would be sufficient.
On 5/28/07, Ken Ryon <ken_ryon at hotmail.com> wrote:
>
> http://www.networksorcery.com/enp/protocol/sip.htm
>
> Cheers,
> -Ken
>
>
> ________________________________
> Date: Mon, 28 May 2007 14:50:49 +0200
> From: gurudattbalaji at gmail.com
> To: discussion at sipforum.org
> Subject: [SIPForum-discussion] SIP Help
>
>
> Hi all,
>
> Does any one has quick referrence quide for SIP? which talks about all
> messages and headers of SIP.
>
> Pls share.
>
> Reg
> Balaji
>
> ________________________________
> Change is good. See what's different about Windows Live Hotmail. Check
it
> out!
> _______________________________________________
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