Subject: [Sipping] I-D ACTION:draft-sen-sipping-intrarealm-stun-00.txt

From: [email-masked]
Date: Fri, 06 Sep 2002 07:43:09 -0400

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

	Title		: Identifying Intra-realm Calls using STUN
	Author(s)	: S. Sen, F. Audet, F. Meijer, C. Aoun
	Filename	: draft-sen-sipping-intrarealm-stun-00.txt
	Pages		: 8
	Date		: 2002-9-5
	
This draft proposes the use of STUN to determine whether two communicating endpoints are in the same realm.  This draft describes the use of STUN in a peer-to-peer fashion between endpoints during call set-up. The call set-up may proceed in parallel with the STUN messaging, allowing the peers to initially exchange media using their public IP addresses. If the peers are in the same realm, then the media is switched to the private IP addresses using a SIP UPDATE or a SIP 
reINVITE SDP offer-answer exchange. With this proposal, media flows are kept within the same addressing realm whenever possible, thus avoiding certain network intermediaries and reducing bandwidth requirements on external links into the realm.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-sen-sipping-intrarealm-stun-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-sen-sipping-intrarealm-stun-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:
	[email-masked].
In the body type:
	"FILE /internet-drafts/draft-sen-sipping-intrarealm-stun-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.