HI Ranjit,
I do not believe 487 is a suitable response for such a condition. As such
there is no response that is suitable that is usable in this case, but we
can respond with a 400 response. But do we even have an agreement that this
is a client error!
Rgds,
Prasanna
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Ranjit
Avasarala
Sent: Wednesday, September 18, 2002 1:41 PM
To: Himanshoo Ks; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [Sip-implementors] RE: [Sip] SIP INFO
Hi Himanshoo
if there is any extra info to be conveyed to UAS, then UAC generates INFO
request and sends it to UAS. but if UAS is not interested in the info, then
UAS can respond with "487 Request Cancelled" response.
HTH
Ranjit :-)
-----Original Message-----
From: Himanshoo Ks [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 10:25 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]
Subject: RE: [Sip] SIP INFO
Your mail says that:
"while INFO method is used to convey mid session information. The INFO
method
only provides optioanl extra information. So UAC may not know whether UAS is
interested in the information or not."
If UAS can't tell what information it is interested in, then what is the use
of INFO method...
Also, then how does UAC decide which information to send.
regards
Himanshoo
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ranjit
Avasarala
Sent: Wednesday, September 18, 2002 10:10 AM
To: Himanshoo Ks; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: [Sip] SIP INFO
Hi Himanshoo
SUBSCRIBE / NOTIFY methods are used to register for specific events like
call fowrward, automatic call back , etc.
while INFO method is used to convey mid session information. The INFO method
only provides optioanl extra information. So UAC may not know whether UAS is
interested in the information or not.
Ranjit :-)
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Himanshoo Ks
Sent: Monday, September 23, 2002 8:56 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [Sip] SIP INFO
Hi,
This is with reference to the SIP INFO Method defined in RFC2976.
SIP INFO method is used for sending mid call signaling information. The way
information is sent by a UAC to UAS is clear. But I have one basic question:
1. How does the UAC generating this INFO message know that the UAS is
ineterested in knowing that event.
2. Also we have SUBSCRIBE/NOTIFY messages in SIP which can be used to
subscribe for soem information and then report the same. So in what way is
INFO different than these ..
Could somebody please answer these questions ?
regards
Himanshoo
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