SIP Call Flow Examples

Document Type Expired Internet-Draft (sip WG)
Authors Steve Donovan  , Robert Sparks  , Dean Willis  , Jonathan Rosenberg  , Henning Schulzrinne  , Chris Cunningham 
Last updated 2001-06-28
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This informational document gives examples of SIP (Session Initiation Protocol) call flows for IP telephony. Elements in these call flows include SIP User Agents and Clients, SIP Proxy and Redirect Servers, and Gateways to the PSTN (Public Switch Telephone Network).


Steve Donovan (
Robert Sparks (
Dean Willis (
Jonathan Rosenberg (
Henning Schulzrinne (
Chris Cunningham (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)