I-D ACTION:draft-huitema-sgcp-v1-00.txt

[Internet-Drafts at ietf.org]

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


	Title		: Simple Gateway Control Protocol (SGCP)
	Author(s)	: C. Huitema, M. Arango
	Filename	: draft-huitema-sgcp-v1-00.txt
	Pages		: 54
	Date		: 15-May-98
	
This document describes an application programming interface (SGCI) and
a corresponding protocol (SGCP) for controlling Voice over IP (VoIP)
Gateways from external call control elements. The SGCP assumes a call
control architecture where the call control 'intelligence' is outside
the gateways and handled by external call control elements.
 
The document is structured in 5 main sections:
 
  *    The introduction presents the basic assumptions and the relation to
       other protocols such as H.323, RTSP, SAP or SIP.
 
  *    The interface section presents a conceptual overview of the SGCP,
       presenting the naming conventions, the usage of the session 
       description protocol SDP, and the five procedurs that compose 
       SGCP: Notifications Request, Notification, Create Connection, 
       Modify Connection and Delete Connection.
 
  *    The protocol description section presents the SGCP encodings, which
       are based on simple text formats, and the transmission procedure
       over UDP.
 
  *    The security section presents the security requirement of SGCP, and
       its usage of IP security services (IPSEC).
 
  *    An example section presents two detailed examples of call set up
       procedures using SGCP.


Internet-Drafts are 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-huitema-sgcp-v1-00.txt".
A URL for the Internet-Draft is:
ftp://ftp.ietf.org/internet-drafts/draft-huitema-sgcp-v1-00.txt

Internet-Drafts directories are located at:

	Africa:	ftp.is.co.za
	
	Europe: ftp.nordu.net
		ftp.nis.garr.it
			
	Pacific Rim: munnari.oz.au
	
	US East Coast: ftp.ietf.org
	
	US West Coast: ftp.isi.edu

Internet-Drafts are also available by mail.

Send a message to:	mailserv at ietf.org.  In the body type:
	"FILE /internet-drafts/draft-huitema-sgcp-v1-00.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-huitema-sgcp-v1-00.txt>