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Integrated Services Digital Network (ISDN) User Part (ISUP) to Session Initiation Protocol (SIP) Mapping (RFC3398)

IP.com Disclosure Number: IPCOM000010294D
Original Publication Date: 2002-Nov-01
Included in the Prior Art Database: 2002-Dec-06

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+4]

Abstract

This document describes a way to perform the mapping between two signaling protocols: the Session Initiation Protocol (SIP) and the Integrated Services Digital Network (ISDN) User Part (ISUP) of Signaling System No. 7 (SS7). This mechanism might be implemented when using SIP in an environment where part of the call involves interworking with the Public Switched Telephone Network (PSTN).

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group                                       G. Camarillo

Request for Comments: 3398                                      Ericsson

Category: Standards Track                                    A. B. Roach

                                                             dynamicsoft

                                                             J. Peterson

                                                                 NeuStar

                                                                  L. Ong

                                                                   Ciena

                                                           December 2002

      Integrated Services Digital Network (ISDN) User Part (ISUP)

              to Session Initiation Protocol (SIP) Mapping

Status of this Memo

   This document specifies an Internet standards track protocol for the

   Internet community, and requests discussion and suggestions for

   improvements.  Please refer to the current edition of the "Internet

   Official Protocol Standards" (STD 1) for the standardization state

   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

   This document describes a way to perform the mapping between two

   signaling protocols: the Session Initiation Protocol (SIP) and the

   Integrated Services Digital Network (ISDN) User Part (ISUP) of

   Signaling System No. 7 (SS7).  This mechanism might be implemented

   when using SIP in an environment where part of the call involves

   interworking with the Public Switched Telephone Network (PSTN).

Table of Contents

   1.      Introduction............................................  3

   2.      Scope...................................................  4

   3.      Terminology.............................................  5

   4.      Scenarios...............................................  5

   5.      SIP Mechanisms Required.................................  7

   5.1     'Transparent' Transit of ISUP Messages..................  7

   5.2     Understanding MIME Multipart Bodies.....................  7

   5.3     Transmission of DTMF Information........................  8

   5.4     Reliable Transmission of Provisional Responses..........  8

   5.5     Early Media.............................................  8

   5.6     Mid-Call Transactions which do not change SIP st...