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Mapping of Integrated Services Digital Network (ISDN) User Part (ISUP) Overlap Signalling to the Session Initiation Protocol (SIP) (RFC3578)

IP.com Disclosure Number: IPCOM000018856D
Original Publication Date: 2003-Aug-01
Included in the Prior Art Database: 2003-Aug-19
Document File: 14 page(s) / 27K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+4]

Abstract

This document describes a way to map Integrated Services Digital Network User Part (ISUP) overlap signalling to Session Initiation Protocol (SIP). 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 10% of the total text.

Network Working Group                                       G. Camarillo

Request for Comments: 3578                                      Ericsson

Category: Standards Track                                    A. B. Roach

                                                             dynamicsoft

                                                             J. Peterson

                                                                 NeuStar

                                                                  L. Ong

                                                                   Ciena

                                                             August 2003

         Mapping of Integrated Services Digital Network (ISDN)

                  User Part (ISUP) Overlap Signalling

                to the Session Initiation Protocol (SIP)

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 (2003).  All Rights Reserved.

Abstract

   This document describes a way to map Integrated Services Digital

   Network User Part (ISUP) overlap signalling to Session Initiation

   Protocol (SIP).  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).

Camarillo, et al.           Standards Track                     [Page 1]

RFC 3578             ISUP Overlap Signalling to SIP          August 2003

Table of Contents

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

   2.  Conversion of ISUP Overlap Signalling into SIP en-bloc

       Signalling . . . . . . . . . . . . . . . . . . . . . . . . . .  3

       2.1.  Waiting for the Minimum Amount of Digits . . . . . . . .  4

       2.2.  The Minimum Amount of Digits has been Received . . . . .  4

   3.  Sending Overlap Signalling to a SIP Network. . . . . . . . . .  5

       3.1.  One vs. Several Transactions . . . . . . . . . . . . . .  5

       3.2.  Generating Multiple INVITEs. . . . . . . . . . . . . . .  6

       3.3.  Receiving Multip...