RFC 3523 (rfc3523) - Page 2 of 6
Internet Emergency Preparedness (IEPREP) Telephony Topology Terminology
Alternative Format: Original Text Document
RFC 3523 IEPREP April 2003 1. Introduction This document defines the topology naming conventions that are to be used in reference to IEPREP phone calls. These naming conventions should be used to focus the IEPREP Working Group (WG) during discussions and when writing requirements, gap analysis and other solutions documents. There has been much confusion on the IEPREP list as well as within each meeting about the topologies IEPREP is considering. Hopefully this document will give each reader and author a reference set of named architectures. This memo attempts to be agnostic with regard to IP signaling or control protocols (SIP, MEGACO, etc), as well as any underlying Quality of Service (QOS) mechanisms (Diffserv, RSVP, NSIS, etc). 1.1 Motivation Simply put, to get everyone referencing the same (named) topologies in order to have useful and less confusing dialog to further this working group's efforts. 1.2 Terms and Definitions The following acronyms need to be exploded for clarity: CSN = Circuit Switched Network GW = Gateway (CSN to IP, or IP to CSN) 2. IEPREP Topologies There are 4 often mentioned, but very little documented topologies discussed within this WG's efforts so far. The following subsections name and describe each of the topologies. The 4 topologies are (quickly): Topology "IP Bridging" Topology "IP at the Start" Topology "IP at the End" Topology "End-to-End IP" Polk Informational
