I-D ACTION:draft-parameswar-sipping-norefersub-00.txt

[[e-mail]]

A New Internet-Draft is available from the on-line Internet-Drafts directories.


	Title		: Suppressing Refer Implicit Subscription
	Author(s)	: S. Parameswar
	Filename	: draft-parameswar-sipping-norefersub-00.txt
	Pages		: 8
	Date		: 2002-10-30
	
The recipient of the REFER method [1] creates an implicit 
subscription to the 'refer' event. This subscription causes the REFER 
recipient to send NOTIFY messages to the sender informing him of the 
progress of the REFER. This memo provides for the requirements and 
one potential mechanism to suppress the creation of this implicit 
subscription, via an option tag - 'norefersub'. This gives the agent 
sending the REFER control over the creation of the subscription, 
while being backwards compatible with [1].

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-parameswar-sipping-norefersub-00.txt

To remove yourself from the IETF Announcement list, send a message to 
ietf-announce-request with the word unsubscribe in the body of the message.

Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-parameswar-sipping-norefersub-00.txt".

A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html 
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt


Internet-Drafts can also be obtained by e-mail.

Send a message to:
	[e-mail].
In the body type:
	"FILE /internet-drafts/draft-parameswar-sipping-norefersub-00.txt".
	
NOTE:	The mail server at ietf.org can return the document in
	MIME-encoded form by using the "mpack" utility.  To use this
	feature, insert the command "ENCODING mime" before the "FILE"
	command.  To decode the response(s), you will need "munpack" or
	a MIME-compliant mail reader.  Different MIME-compliant mail readers
	exhibit different behavior, especially when dealing with
	"multipart" MIME messages (i.e. documents which have been split
	up into multiple messages), so check your local documentation on
	how to manipulate these messages.
		
		
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.

ftp://ftp.ietf.org/internet-drafts/draft-parameswar-sipping-norefersub-00.txt"><ftp://ftp.ietf.org/internet-drafts/draft-parameswar-sipping-norefersub-00.txt>