DOCSLIB.ORG

Question About SOC Codes Question About SID Codes

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Question About SOC Codes Question About SID Codes Editor: David Crowe • Phone +1-403-289-6609 • Email [email protected] Vol. 9, No. 3 March, 2000 In This Issue... Question about national range of codes (see TIA/ SOC Codes EIA-136-123 for details). Question about SOC Codes p. 1 TIA/EIA-136 also allows for carrier spe- cific signaling using SOC code, although A reader asks us what a SOC Code is? Reader Eduardo Henriques Resende in What standards are they used by? Planejamento de Rede (Network Plan- it is not expected that this will be exten- And, how can one be obtained? ning) for Maxitel in Brazil asks: sively implemented. “I work for MAXITEL S.A., a cellu- SOC codes can be obtained by applica- Question about SID Codes . p. 1 lar operator in Brazil, and we need tion to: SID codes are equivalent to a radio some information about the parame- Editor, ANSI TIA/EIA-136 station’scall sign, and are fundamen- ter SOC (Service Operator Code). Committee TR45 tal to radio interfaces connected via Could you help us?” TIA/EIA-41. Unfortunately, it is not c/o TIA so easy to obtain a listing of them. The SOC (System Operator Code) is 2500 Wilson Blvd. Suite 300 defined for TDMA systems in IS-136 Arlington, VA 22201, USA International Update: SS7 and in the most recent ANSI versions in Global Title Routing........... p. 2 the TIA/EIA-136 series. The codes are Question about IS-807 (plus an addendum) provides assigned by TIA Standards Subcommit- guidelines on how global title can be tee TR-45.3 to carriers. Unlike the SID, SID Codes used (warts and all) to facilitate rout- the SOC code identifies a carrier, and can ing of TIA/EIA-41 messages across make intelligent roaming databases more Tim McCaffrey of Anritsu asks: international boundaries. compact as fewer entries are required. As SOC codes are 12 bits in length, there are “I would like to find a listing of all TIA TR-45.3 TDMA Digital 4,096 to choose from, although it may SIDs. For example: Sprint - 4188. Air Interface Standards ...... p. 5 only be the 2,048 international codes This will speed fault screening hand- sets” TR-45.3 is the TIA subcommittee (80016-FFF16) that are useful, as there are responsible for TMDA digital cellular some signaling problems with the An AM or FM radio station broadcasts a and PCS standards (known variously unique call sign, while a cellular or PCS as IS-136, ANSI-136, UWC/136 or base station (AMPS, TDMA or CDMA) D-AMPS). The complete list of stan- broadcasts a unique SID (System Identi- dards and projects that have been We Now Accept fier). SID codes are a global resource published by this subcommittee, or Diners Club which is allocated in blocks to countries. that are currently being developed is Individual SID codes are assigned We now accept Diners Club credit presented, organized by the major nationally. The ranges assigned to each cards for subscriptions, back issue phases of development. country are listed in TIA TSB-29 and at orders and other products. We con- www.ifast.org. The best resource for tinue to accept American Express, individual SID codes is probably the Visa and MasterCard, as well as Glossary CIBER manual, published by Cibernet checks, money orders and bank Corporation (phone: +1-202-785-0081), www.cnp-wireless.com/glossary.html transfers. Please choose the method although it may not have information of payment that is most convenient about carriers that do not participate in for you. Next Issue: April 3, 2000 CIBER billing record exchange. In these Cellular Networking Perspectives (issn 1195-3233) is published monthly by Cellular Networking Perspectives Ltd., 2636 Toronto Cresc. NW, Calgary AB, T2N 3W1, Canada. Contact Information: Phone: 1-800-633-5514 (+1-403-274-4749) Fax: +1-403-289-6658 Email: [email protected] Web: http://www.cnp-wireless.com/. Subscriptions: CDN$300 in Canada (incl. GST), US$300 in the USA and US$400 elsewhere. Payment by cheque, bank transfer, American Express, Diners Club, MasterCard or Visa. Delivery: Email or 1st class mail. Back Issues: Available individually for $35 in the US and Canada and $40 elsewhere, or in bulk at reduced rates. Discounts: Educational and small business discount: 25% off any order. Copies: Each subscriber is licensed to make up to 10 copies of each issue or back issue. Please call for rates to allow more copies. cases, national authorities (such as the but with significant difficulties. Systems Global Titles FCC in the United States) or individual outside the United States need to use carriers may have to be consulted. International Roaming MINs (IRMs), of A global title allows routing based on a numeric string, such as a calling card Some SID codes are never broadcast by which 50% have been taken, 10% having number, phone number (ITU-T Recom- a base station, but are only used in net- been allocated by IFAST mendation E.164) or IMSI (ITU-T work and billing messages for account- (www.ifast.org) within the past year. The E.212). The original node places a global ing purposes (e.g. to identify markets 15 digit IMSI provides a much greater title in the Called Party Address field within a system identified by a single number of unique identifiers. Further, (CdPA) of the SS7 SCCP layer, and each SID). These codes, known as BIDs (Bill- they can be allocated independently by STP resolves the address into either the ing IDs) are assigned upon request by each country, without need for interna- point code address of the next STP, or the Cibernet Corporation. tional coordination, unless a country needs a new Mobile Country Code. IMSI actual destination address. A global title Air interface standards treat the SID as a is universal in GSM, and is now an may also be included in the Calling Party 15 bit number (0..32,767). These SID option in TDMA (TIA/EIA-136) and Address field (CgPA) for routing of codes are in relatively short supply due CDMA (TIA/EIA-95) digital standards replies. Global titles can be used for to the inefficient allocation scheme that as well as the TIA/EIA-41 standard international routing as long as: was originally used. Since network and (through IS-751). It is not available in • A compatible global title exists in billing SID codes are transmitted and any analog (AMPS) standards. IMSI has both SS7 networks, and stored as 16 bits numbers, there is no not yet been widely implemented in sys- • International gateways support the shortage of these codes (i.e. there are tems other than GSM, although this is global title. 32,767 codes that can be used on the net- expected to change in 2000. work, but not on the radio interface). IS-807, a recently published TIA stan- dard, has provided guidelines for inter- International Signaling national global title routing in TIA/ International Update: EIA-41 networks, although a recent IMSI helps systems identify interna- change of direction has required the pub- SS7 Global Title tional roamers, and their home systems, lication of an addendum to the original but it cannot solve the problem of com- Routing recommendations. IS-807 is not a com- municating with the home system over plete solution, however, as it does not the SS7 signaling network (although it is International roaming is definitely one of identify a full set of global titles for use part of the solution). Currently, most the weaknesses of cellular and PCS sys- outside the ANSI SS7 network. Figure 1 international roaming solutions simply tems connected by the TIA/EIA-41 illustrates the international routing of a extend the ANSI SS7 signaling network (“ANSI-41”) standard for inter-system TIA/EIA-41 operation assuming that all into countries outside North America operations, and one of the strengths of the pieces are in place. GSM. This reflects the birthplaces of the instead of using native SS7 protocols. two families of standards. GSM was cre- This is frowned upon by North American Choice of Global Titles ated specifically to facilitate a seamless SS7 standards organizations (e.g. T1S1) pan-European cellular system, while and resource assignment authorities Not all TIA/EIA-41 signaling messages AMPS was designed for use solely because it could lead to wireless systems can use the same type of global title and, within the United States. However, TIA/ in other countries exhausting a North in some cases there are a variety of EIA-41 is growing into an international American resource. It is also undesirable choices for the global title for an individ- standard, with international roaming for other countries, because it means that ual signaling message. Identifying a sin- becoming a necessity, not a luxury. It is they have to implement two parallel SS7 gle choice simplifies network design by not that many years since roaming within networks, and their access to the ANSI limiting the scope of modifications to the US was considered a luxury, yet it is network could be terminated at short network elements that may have to orig- now considered essential by many wire- notice. inate, route or respond to TIA/EIA-41 less consumers. The lowest level SS7 address is the point messages. code, but it definitely cannot be used for In the case of a mobile registration, the International Mobile international roaming. Not only is the choice is relatively simple, because the address space re-used in each country only identifier available is the one that Identifiers with a distinct SS7 network, but the sizes the mobile transmitted over the radio One of the challenges with international of point codes varies from 14 bits in interface.
Load more

Recommended publications
  • SGSN in a 2.5G GPRS Network
    SGSN in a 2.5G GPRS Network • SGSN in a 2.5G GPRS Network, on page 1 • 2.5G SGSN Configuration Components, on page 2 • How the 2.5G SGSN Works , on page 4 • Information Required for the 2.5G SGSN, on page 6 SGSN in a 2.5G GPRS Network This chapter outlines the basic configuration and operation of the Serving GPRS Support Node (SGSN) in 2.5G GPRS wireless data networks. The simplest configuration that can be implemented on the system to support SGSN functionality in a 2.5G network requires one context but we recommend a minimum of two: one for the SGSN service (required) and another for the charging context. The service context organizes the following: • GPRS service configuration • MAP (Mobile Application Part) configuration • DNS (Domain Naming System) configuration for resolution of APN (Access Point Name) domain names • SGTP (SGSN GPRS Tunneling Protocol) configuration The charging context facilitates the following: • Configuration of connectivity to the CGF (Charging Gateway Function) The following functionality is configured at the global or system level in the local management context: • NSEI (Network Service Entity Identity) configuration • SCCP (Signalling Connection Control Part) network configuration • SS7 (Signaling System 7) connectivity configuration • GTT (Global Title Translation) configuration To simplify configuration management, more contexts can be created to categorize the service configuration. Each context can be named as needed. The contexts listed above can be configured as illustrated in the figure on the next page. SGSN in a 2.5G GPRS Network 1 SGSN in a 2.5G GPRS Network 2.5G SGSN Configuration Components 2.5G SGSN Configuration Components In order to support 2.5G SGSN functionality, the system must be configured with at least one context for the GPRS service (2.5G SGSN service).
    [Show full text]
  • N-Squared Software N2SRP INAP Protocol Conformance Statement
    N-Squared Software N2SRP INAP Protocol Conformance Statement Version 2020-02 N2SRP INAP Protocol Conformance Statement Version 2020-02 1 Document Information 1.1 Scope and Purpose This document describes the implementation of the INAP (including CAMEL variants) protocols for real-time SRP flows for voice interaction control using the N-Squared (N2) SIP Specialized Resource Platform (SRP) when used in conjunction with an INAP Service Control Platform (SCP). It should be read in conjunction with the N2SRP Technical Guide [R-1]. This document assumes a working knowledge of the relevant INAP and other telephony concepts, including the standard INAP interactions between an SCP, an SSP, and an SRP (or Intelligent Peripheral). 1.2 Definitions, Acronyms, and Abbreviations Term Meaning AC Application Context (in TCAP) ARI Assist Request Instructions AS Application Server ASP Application Server Process ASPAC ASP Active ASPTM ASP Traffic Maintenance ASN.1 Abstract Syntax Notation One CAMEL Customized Applications for Mobile Network Enhanced Logic CAP CAMEL Application Part DTMF Dual Tone Multi-Frequency ETSI European Telecommunications Standards Institute GT Global Title GTI Global Title Indicator IETF Internet Engineering Task Force INAP Intelligent Networking Application Part IP Internet Protocol ITU-T International Telecommunication Union Telecommunication Standardization Sector M3UA MTP3 User Adaption Layer MTP3 Message Transfer Part Level 3 N2 N-Squared OCNCC Oracle Communications Network Charging & Control PA Play Announcement PACUI Prompt
    [Show full text]
  • A-Port User's Guide, Release 46.2 Copyright © 1993, 2015, Oracle And/Or Its Affiliates
    Oracle® Communications EAGLE A-Port User©s Guide Release 46.2 E63583 Revision 1 July 2015 Oracle® Communications EAGLE A-Port User's Guide, Release 46.2 Copyright © 1993, 2015, Oracle and/or its affiliates. All rights reserved. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs.
    [Show full text]
  • Technical Architecture Alternatives for Open Connectivity Roaming Hubbing Model
    GSM Association Non-confidential Official Document IR.80 - Technical Architecture Alternatives for Open Connectivity Roaming Hubbing Model Technical Architecture Alternatives for Open Connectivity Roaming Hubbing Model Version 2.0 26 February 2015 This is a Non-binding Permanent Reference Document of the GSMA Security Classification: Non-confidential Access to and distribution of this document is restricted to the persons permitted by the security classification. This document is confidential to the Association and is subject to copyright protection. This document is to be used only for the purposes for which it has been supplied and information contained in it must not be disclosed or in any other way made available, in whole or in part, to persons other than those permitted under the security classification without the prior written approval of the Association. Copyright Notice Copyright © 2015 GSM Association Disclaimer The GSM Association (“Association”) makes no representation, warranty or undertaking (express or implied) with respect to and does not accept any responsibility for, and hereby disclaims liability for the accuracy or completeness or timeliness of the information contained in this document. The information contained in this document may be subject to change without prior notice. Antitrust Notice The information contain herein is in full compliance with the GSM Association’s antitrust compliance policy. V2.0 Page 1 of 95 GSM Association Non-confidential Official Document IR.80 - Technical Architecture Alternatives for
    [Show full text]
  • Database Administration Manual - Global Title Translation 910-6277-001 Revision a January 2012
    Tekelec EAGLE® 5 Release 44.0 Database Administration Manual - Global Title Translation 910-6277-001 Revision A January 2012 Copyright 2012 Tekelec. All Rights Reserved. Printed in USA. Legal Information can be accessed from the Main Menu of the optical disc or on the Tekelec Customer Support web site in the Legal Information folder of the Product Support tab. Table of Contents Chapter 1: Introduction.....................................................................13 Overview..................................................................................................................................14 Scope and Audience...............................................................................................................15 Manual Organization..............................................................................................................15 Documentation Admonishments..........................................................................................15 Customer Care Center............................................................................................................16 Emergency Response..............................................................................................................18 Related Publications...............................................................................................................19 Documentation Availability, Packaging, and Updates.....................................................19 Locate Product Documentation on the Customer Support Site.......................................19
    [Show full text]
  • SCCP Signalling Aspects for Roaming Version 3.2.1 10 October 2005
    GSM Association Non-confidential Official Document IR.22 - SCCP Signalling Aspects for Roaming SCCP Signalling Aspects for Roaming Version 3.2.1 10 October 2005 This is a Non-binding Permanent Reference Document of the GSMA Security Classification: Non-confidential Access to and distribution of this document is restricted to the persons permitted by the security classification. This document is confidential to the Association and is subject to copyright protection. This document is to be used only for the purposes for which it has been supplied and information contained in it must not be disclosed or in any other way made available, in whole or in part, to persons other than those permitted under the security classification without the prior written approval of the Association. Copyright Notice Copyright © 2015 GSM Association Disclaimer The GSM Association (“Association”) makes no representation, warranty or undertaking (express or implied) with respect to and does not accept any responsibility for, and hereby disclaims liability for the accuracy or completeness or timeliness of the information contained in this document. The information contained in this document may be subject to change without prior notice. Antitrust Notice The information contain herein is in full compliance with the GSM Association’s antitrust compliance policy. V3.2.1 Page 1 of 11 GSM Association Non-confidential Official Document IR.22 - SCCP Signalling Aspects for Roaming Table of Contents 1 Introduction 3 1.1 Scope 3 1.2 Abbreviations 3 2 Numbering Plan Indicator of Global Title 3 3 SCCP Requirement for a Node in the International ISDN 4 4 Process for the Establishment of PLMN Signalling Relationships 5 4.1 Message Routing 6 4.2 Establishment Process 6 5.
    [Show full text]
  • Virtual Signaling Transfer Point User©S Guide Release 8.1 E86290 Revision 01
    Oracle® Communications Diameter Signaling Router Virtual Signaling Transfer Point User©s Guide Release 8.1 E86290 Revision 01 July 2017 Oracle Communications Diameter Signaling Router Virtual Signaling Transfer Point User's Guide, Release 8.1 Copyright © 2017, Oracle and/or its affiliates. All rights reserved. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs.
    [Show full text]
  • Finer Digit Analysis of Telephone Numbers for Routeing Purposes REPORT to OFCOM
    Finer Digit Analysis of Telephone Numbers for Routeing Purposes REPORT TO OFCOM 11 August, 2005 Issue 1.0 Ref: 00720/RT/818.1. Authors: Mark Norris & Peter Walker I N T E R C A I M O N D I A L E Registered in England, No: 3271854 Assessed and registered to ISO9001 Regatta House, High Street, Marlow, Bucks, UK SL7 1AB Tel: +44 (0) 1628-478470 Fax: +44 (0) 1628-478472 http://www.intercai.co.uk Table of Contents Summary of Findings ........................................................................................................................1 1 Introduction................................................................................................................................1 1.1 Specific objectives..............................................................................................................2 1.2 Contents of Report .............................................................................................................2 2 Background to numbering developments ..................................................................................3 3 Data decode – general findings..................................................................................................4 3.1 Outline of investigations ....................................................................................................4 3.2 Main findings.....................................................................................................................4 4 Geographic Numbers .................................................................................................................5
    [Show full text]
  • We Know Where You Are!
    2016 8th International Conference on Cyber Conflict Permission to make digital or hard copies of this publication for internal use within NATO and for personal or educational use when for non-profit or non-commercial Cyber Power purposes is granted providing that copies bear this notice and a full citation on the N.Pissanidis, H.Rõigas, M.Veenendaal (Eds.) first page. Any other reproduction or transmission requires prior written permission by NATO CCD COE. 2016 © NATO CCD COE Publications, Tallinn We Know Where You Are! Siddharth Prakash Rao Dr Silke Holtmanns Department of Computer Science Bell Labs, Nokia Aalto University, Finland Espoo, Finland [email protected] [email protected] Dr Ian Oliver Dr Tuomas Aura Bell Labs, Nokia Department of Computer Science Espoo, Finland Aalto University, Finland [email protected] [email protected] Abstract: Mobile network technologies require some degree of tracking of user location, specifically user equipment tracking, as part of their fundamental mechanism of working. Without this basic function, features such as hand-over between cells would not work. Since mobile devices are typically associated with a single person, this provides a potential mechanism for user location surveillance. Network operators are bound by strict privacy legislation. However, spying by certain agencies, hackers and even advertisers without the users’ or operators’ knowledge has become a serious issue. In this article, we introduce and explain all known recent attacks on mobile networks that compromised user privacy. We focus on attacks using the Signalling System 7 (SS7) protocol as the interconnection interface between operators mainly in GSM networks.
    [Show full text]
  • TR 129 903 V5.0.0 (2001-12) Technical Report
    ETSI TR 129 903 V5.0.0 (2001-12) Technical Report Universal Mobile Telecommunications System (UMTS); Feasibility study on SS7 signalling transportation in the core network with SCCP-User Adaptation (SUA) (3GPP TR 29.903 version 5.0.0 Release 5) 3 GPP TR 29.903 version 5.0.0 Release 5 1 ETSI TR 129 903 V5.0.0 (2001-12) Reference DTR/TSGN-0429903v500 Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission.
    [Show full text]
  • National Numbering Plan
    Consultation Paper on National Numbering Plan Pakistan Telecommunication Authority Document classification National Numbering Plan 2008 Document version 4th Version Filename National Numbering Plan Version release date 23 rd Jan; 2008 Present Subject Paper for Public Consultation Version Date Author Changes to previous version 01 4/22/07 Naseem Ahmed Initial Version Vohra Consultant Technical PTA 02 5/28/07 Naseem Ahmed Revision 1 Vohra Consultant Technical PTA (Not released to stakeholders) 03 01/16/08 Naseem Ahmed Revision Vohra Consultant Technical PTA Included intervening developments 04 01/23/08 Naseem Ahmed Incorporated feedback on Numbering Vohra Consultant Regulations from PTA Law Division Technical PTA Table of Contents Table of Contents .............................................................................................................. 3 Executive Summary .......................................................................................................... 6 1. INTRODUCTION.................................................................................................... 13 1.1 Objectives of the Plan....................................................................................... 13 1.1.1 Scope ...................................................................................................14 1.1.2 Role of the PTA................................................................................... 14 2. NUMBERING PLAN OVERVIEW ........................................................................ 15 2.1.1
    [Show full text]
  • 3GPP2 X.S0004-511-E.Book
    3GPP2 X.S0004-512-E Version 1.0.0 Date: March 2004 ITU-T SS7 Transport Signaling Protocols Revision History Revision Date Rev. 0 Initial Publication March 2004 X.S0004-512-E v1.0 1 2 PART 512 3 4 5 6 1 ITU-T SS7-BASED DATA TRANSFER 7 8 SERVICES 9 10 The ITU-T SS7-based Data Transfer Services are comprised of the International 11 Telecommunications Union Signaling System 7 Message Transfer Part (MTP) plus Signaling 12 Connection Control Part (SCCP). 13 14 15 16 1.1 MESSAGE TRANSFER PART 17 18 The MTP is defined in ITU-T Q.701 - Q.710, with the following supplemental information. 19 20 The MAP messages that are transported on an intersystem basis may be assigned a message priority 21 value of either 0 or 1. The INVOKE, RETURN RESULT, RETURN ERROR, and REJECT 22 components associated with the same operation (e.g., LocationRequest) shall have the same 23 message priority value. The recommended message priority values are as described in 24 TIA-41-511-E Section 1 Message Transfer Part. 25 26 The message priority value may be determined by the TIA-41 MAP based on the message type and 27 may be passed down to the MTP through the SCCP. 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 512-1 ITU-T SS7-BASED DATA TRANSFER SERVICES X.S0004-512-E v1.0 1.2 SIGNALING CONNECTION CONTROL PART 1 2 3 For TIA-41 applications, the SCCP is defined in ITU-T Q.711 - Q.714, with the following exceptions 4 and limitations: 5 6 • The SCCP Class 0 connectionless service is requested from the SCCP.
    [Show full text]