throbber
INTERNATIONAL TELECOMMUNICATION UNION
`
`)45(cid:13)4
`
`TELECOMMUNICATION
`STANDARDIZATION SECTOR
`OF ITU
`
`%(cid:14)(cid:17)(cid:22)(cid:20)
`
`(05/97)
`
`SERIES E: OVERALL NETWORK OPERATION,
`TELEPHONE SERVICE, SERVICE OPERATION AND
`HUMAN FACTORS
`Operation, numbering, routing and mobile services –
`International operation – Numbering plan of the
`international telephone service
`
`4HE(cid:0)INTERNATIONAL(cid:0)PUBLIC(cid:0)TELECOMMUNICATION
`NUMBERING(cid:0)PLAN
`
`ITU-T Recommendation E.164
`
`(Previously CCITT Recommendation)
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 1
`
`

`

`ITU-T E-SERIES RECOMMENDATIONS
`
`OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN
`FACTORS
`
`OPERATION, NUMBERING, ROUTING AND MOBILE SERVICES
`INTERNATIONAL OPERATION
`Definitions
`General provisions concerning Administrations
`General provisions concerning users
`Operation of international telephone services
`Numbering plan of the international telephone service
`International routing plan
`Tones in national signalling systems
`Maritime mobile service and public land mobile service
`OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN
`THE INTERNATIONAL TELEPHONE SERVICE
`Charging in the international telephone service
`Procedures for remuneration of Administrations for facilities made available
`Measuring and recording call durations for accounting purposes
`Establishment and exchange of international accounts
`UTILIZATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NON-
`TELEPHONY APPLICATIONS
`General
`Phototelegraphy
`ISDN PROVISIONS CONCERNING USERS
`QUALITY OF SERVICE, NETWORK MANAGEMENT AND TRAFFIC ENGINEERING
`NETWORK MANAGEMENT
`TRAFFIC ENGINEERING
`QUALITY OF TELECOMMUNICATION SERVICES: CONCEPTS, MODELS,
`OBJECTIVES AND DEPENDABILITY PLANNING
`
`E.100–E.229
`E.100–E.103
`E.104–E.119
`E.120–E.139
`E.140–E.159
`E.160–E.169
`E.170–E.179
`E.180–E.199
`E.200–E.229
`E.230–E.299
`
`E.230–E.249
`E.250–E.259
`E.260–E.269
`E.270–E.299
`E.300–E.329
`
`E.300–E.319
`E.320–E.329
`E.330–E.399
`
`E.400–E.489
`E.490–E.799
`E.800–E.899
`
`For further details, please refer to ITU-T List of Recommendations.
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 2
`
`

`

`ITU-T RECOMMENDATION E.164
`
`THE INTERNATIONAL PUBLIC
`TELECOMMUNICATION NUMBERING PLAN
`
`Summary
`
`This Recommendation provides the number structure and functionality for the three categories of numbers used for
`international public telecommunication – they are geographic areas, global services and Networks. For each of the
`categories, it details the components of the numbering structure and the digit analysis required to successfully route the
`calls. Annex A provides additional information on the structure and function of E.164 numbers. Annex B provides
`information on network identification, service parameters, calling/connected line identity, dialling procedures and
`addressing for geographic-based ISDN calls. Specific E.164-based applications which differ in usage are defined in
`separate Recommendations.
`
`Source
`
`ITU-T Recommendation E.164 was revised by ITU-T Study Group 2 (1997-2000) and was approved under the WTSC
`Resolution No. 1 procedure on the 26th of May 1997.
`
`Recommendation E.164 (05/97)
`
`i
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 3
`
`

`

`FOREWORD
`
`ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommuni-
`cations. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The ITU-T is
`responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to
`standardizing telecommunications on a worldwide basis.
`
`The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the
`topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topics.
`
`The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC
`Resolution No. 1.
`
`In some areas of information technology which fall within ITU-T’s purview, the necessary standards are prepared on a
`collaborative basis with ISO and IEC.
`
`NOTE
`
`In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication
`administration and a recognized operating agency.
`
`INTELLECTUAL PROPERTY RIGHTS
`
`The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the
`use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability
`of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation
`development process.
`
`As of the date of approval of this Recommendation, the ITU had/had not received notice of intellectual property,
`protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned
`that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database.
`
`All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or
`mechanical, including photocopying and microfilm, without permission in writing from the ITU.
`
` ITU 1997
`
`ii
`
`Recommendation E.164 (05/97)
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 4
`

`

`

`8
`
`9
`
`1
`2
`3
`4
`5
`6
`
`7
`
`Introduction ....................................................................................................................................................
`Scope..............................................................................................................................................................
`References ......................................................................................................................................................
`Definitions......................................................................................................................................................
`Abbreviations .................................................................................................................................................
`International public telecommunication number structure.............................................................................
`6.1
`International public telecommunication number length ...................................................................
`6.2
`Structure of the international public telecommunication number.....................................................
`6.3
`Assignment of Country Codes (CCs) ...............................................................................................
`6.4
`Assignment of Identification Codes .................................................................................................
`International public telecommunication number for geographic areas ..........................................................
`7.1
`Country Code for geographic areas ..................................................................................................
`7.2
`National (significant) number...........................................................................................................
`7.3
`Prefixes .............................................................................................................................................
`7.4
`National numbering plan ..................................................................................................................
`7.5
`Digit analysis ....................................................................................................................................
`International public telecommunication number for global services .............................................................
`8.1
`Country Code for global services .....................................................................................................
`8.2
`Global Subscriber Number ...............................................................................................................
`8.3
`Digit analysis ....................................................................................................................................
`8.4
`Evolution path to an international public telecommunication number for global services...............
`International public telecommunication number for Networks......................................................................
`9.1
`Country Code for Networks..............................................................................................................
`9.2
`Identification Code ...........................................................................................................................
`9.3
`Subscriber Numbers..........................................................................................................................
`9.4
`Digit analysis ....................................................................................................................................
`Escape codes ..................................................................................................................................................
`10
`International prefix.........................................................................................................................................
`11
`Recommendation history................................................................................................................................
`12
`Annex A – Clarification and explanation of the structure and function of E.164 numbers ......................................
`A.1
`Scope ................................................................................................................................................
`A.2
`Structure............................................................................................................................................
`A.3
`Number length ..................................................................................................................................
`A.4
`Unique identification of international number for geographic areas ................................................
`A.5
`Unique identification of international number for global services ...................................................
`A.6
`Unique identification of international number for Networks ...........................................................
`A.7
`Non-E.164 numbers..........................................................................................................................
`Annex B – Application of international public telecommunication numbers for ISDN ...........................................
`B.1
`Scope ................................................................................................................................................
`B.2
`ISDN numbers ..................................................................................................................................
`B.3
`Addressing ........................................................................................................................................
`B.4
`Dialling procedures...........................................................................................................................
`B.5
`Network identification ......................................................................................................................
`B.6
`Service parameters............................................................................................................................
`B.7
`Calling/connected line identity .........................................................................................................
`
`CONTENTS
`
`Page
`1
`1
`1
`2
`5
`6
`6
`6
`7
`8
`8
`8
`8
`9
`10
`10
`11
`11
`11
`11
`11
`12
`12
`12
`12
`12
`12
`12
`13
`13
`13
`13
`13
`15
`15
`15
`15
`17
`17
`17
`17
`18
`18
`19
`19
`
`Recommendation E.164 (05/97)
`
`iii
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 5
`
`

`

`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 6
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 6
`
`

`

`Recommendation E.164
`
`Recommendation E.164 (05/97)
`
`1
`
`Introduction
`
`THE INTERNATIONAL PUBLIC
`TELECOMMUNICATION NUMBERING PLAN
`
` (revised in 1997)
`
`The rapid advances in telecommunication technology coupled with increased diversification of customer demands
`served by a number of different types of dedicated public switched networks (telephone, telex, data, etc.) have created a
`need to provide a uniform customer access to the multitude of network structures (i.e. ISDN, IN, etc.). Implementation
`of these network architectures has begun in a number of countries and eventually these will be able to carry the full
`range of existing and new services.
`
`To provide a broad base for these new arrangements, numbering has been kept compatible with that originally
`established for international telephone service. As covered in this Recommendation, numbering for ISDN and the
`international telephone service are an integral part of this international telecommunication numbering plan.
`
`2
`
`Scope
`
`This Recommendation provides the number structure and functionality for the three categories of numbers used for
`international public telecommunication – they are geographic areas, global services, and Networks. For each of the
`categories, it details the components of the numbering structure and the digit analysis required to successfully route the
`calls. Annex A provides additional information on the structure and function of E.164 numbers. Annex B provides
`information on network identification, service parameters, calling/connected line identity, dialling procedures and
`addressing for geographic-based ISDN calls. Specific E.164-based applications which differ in usage are defined in
`separate Recommendations, e.g. Recommendation E.168 – Application of E.164 numbering plan for UPT.
`
`References
`3
`The following ITU-T Recommendations and other references contain provisions which, through reference in this text,
`constitute provisions of this Recommendation. At the time of the publication, the editions indicated were valid. All
`Recommendations and other references are subject to revision. All users of this Recommendation are therefore
`encouraged to investigate the possibility of applying the most recent edition of the Recommendation and other
`references listed below. A list of the current valid ITU-T Recommendations is regularly published.
`
`–
`
`–
`
`–
`
`–
`
`–
`
`CCITT Recommendation E.123 (1988), Notation for national and international telephone numbers.
`
`CCITT Recommendation E.131 (1988), Subscriber control procedures for supplementary telephone services.
`ITU-T Recommendation E.164.11, Criteria and procedures for the assignment of E.164 country codes and
`associated identification codes.
`
`CCITT Recommendation E.165 (1988), Timetable for coordinated implementation of the full capability of the
`numbering plan for the ISDN era (Recommendation E.164).
`
`ITU-T Recommendation E.165.1 (1996), Use of escape code "0" within the E.164 numbering plan during the
`transition period to implementation of NPI mechanism.
`
`_______________
`
`1 Presently at the stage of draft.
`
`Recommendation E.164 (05/97)
`
`1
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 7
`
`

`

`–
`
`–
`
`–
`
`–
`
`–
`
`–
`
`–
`
`–
`
`–
`
`4
`
`ITU-T Recommendation E.166/X.122 (1996), Numbering plan interworking for the E.164 and X.121
`numbering plans.
`
`ITU-T Recommendation E.168 (1993), Application of E.164 numbering plan for UPT.
`
`ITU-T Recommendation E.169 (1996), Application of Recommendation E.164 numbering plan for universal
`international freephone numbers for international freephone service.
`
`ITU-T Recommendation E.190 (1997), Principles and responsibilities for the management, assignment and
`reclamation of E-Series international numbering resources.
`
`ITU-T Recommendation E.191 (1996), B-ISDN numbering and addressing.
`
`CCITT Recommendation E.213 (1988), Telephone and ISDN numbering plan for land mobile stations in
`Public Land Mobile Networks (PLMN).
`
`CCITT Recommendation E.214 (1988), Structure for the land mobile global title for the Signalling
`Connection Control Part (SCCP).
`
`CCITT Recommendation E.331 (1991), Minimum user-terminal interface for a human user entering address
`information into an ISDN terminal.
`
`CCITT Recommendation I.330 (1988), ISDN numbering and addressing principles.
`
`Definitions
`
`Within the integrated service environment, the terms used for all networks and services must be compatible and
`consistent. This Recommendation defines the following terms.
`
`4.1
`
`number
`
`F: numéro
`S: número
`
`A string of decimal digits that uniquely indicates the public network termination point. The number contains the
`information necessary to route the call to this termination point.
`
`A number can be in a format determined nationally or in an international format. The international format is known as
`the International Public Telecommunication Number which includes the country code and subsequent digits, but not the
`international prefix.
`
`4.2
`
`numbering plan
`
`F: plan de numérotage
`S: plan de numeración
`
`A numbering plan specifies the format and structure of the numbers used within that plan. It typically consists of decimal
`digits segmented into groups in order to identify specific elements used for identification, routing and charging capa-
`bilities, e.g. within E.164 to identify countries, national destinations, and subscribers.
`
`A numbering plan does not include prefixes, suffixes, and additional information required to complete a call.
`The national2 numbering plan is the national implementation of the E.164 numbering plan.
`
`_______________
`
`2 For the purposes of this Recommendation, national is defined as a country, group of countries, global service or Network.
`
`2
`
`Recommendation E.164 (05/97)
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 8
`
`

`

`4.3
`
`dialling plan
`
`F: plan de numérotation
`S: plan de marcación
`
`A string or combination of decimal digits, symbols, and additional information that defines the method by which the
`numbering plan is used. A dialling plan includes the use of prefixes, suffixes, and additional information, supplemental
`to the numbering plan, required to complete the call.
`
`4.4
`
`address
`
`F: adresse
`S: dirección
`
`A string or combination of decimal digits, symbols, and additional information which identifies the specific termination
`point(s) of a connection in a public network(s) or, where applicable, in interconnected private network(s).
`
`4.5
`
`prefix
`
`F: préfixe
`S: prefijo
`
`A prefix is an indicator consisting of one or more digits, that allows the selection of different types of number formats,
`networks and/or service.
`
`4.6
`
`international prefix
`
`F: préfixe international
`S: prefijo internacional
`
`A digit or combination of digits used to indicate that the number following is an International Public Telecommunication
`Number.
`
`4.7
`
`country code (CC) for geographic areas
`
`F: indicatif de pays pour zones géographiques
`S: indicativo de país para áreas geográficas
`
`The combination of one, two or three digits identifying a specific country, countries in an integrated numbering plan, or
`a specific geographic area.
`
`4.8
`
`national (significant) number [N(S)N]
`
`F: numéro national (significatif) [N(S)N]
`S: número nacional (significativo) [N(S)N]
`
`That portion of the number that follows the country code for geographic areas. The national (significant) number
`consists of the National Destination Code (NDC) followed by the Subscriber Number (SN). The function and format of
`the N(S)N is nationally determined.
`
`4.9
`
`national destination code (NDC)
`
`F: indicatif national de destination (NDC)
`S: indicativo nacional de destino (NDC)
`
`A nationally optional code field, within the E.164 number plan, which combined with the Subscriber’s Number (SN) will
`constitute the national (significant) number of the international public telecommunication number for geographic areas.
`The NDC will have a network and/or trunk code selection function.
`
`The NDC can be a decimal digit or a combination of decimal digits (not including any prefix) identifying a numbering
`area within a country (or group of countries included in one integrated numbering plan or a specific geographic area)
`and/or network/services.
`
`Recommendation E.164 (05/97)
`
`3
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 9
`
`

`

`4.10
`
`national (trunk) prefix
`
`F: préfixe (interurbain) national
`S: prefijo (interurbano) nacional
`
`A digit or combination of digits used by a calling subscriber, making a call to a subscriber in his own country but outside
`his own numbering area. It provides access to the automatic outgoing trunk equipment.
`
`4.11
`
`trunk code (TC)
`
`F: indicatif interurbain (TC)
`S: indicativo interurbano (TC)
`
`A digit or combination of digits, not including the national (trunk) prefix, identifying the numbering area within a
`country (or group of countries included in one integrated numbering plan or a specific geographic area).
`
`The trunk code has to be used before the called subscriber’s number when the calling and called subscribers are in
`different numbering areas. The trunk code is a particular application of NDC.
`
`4.12
`
`destination network (DN) code
`
`F: indicatif de réseau de destination (DN)
`S: indicativo de red de destino (DN)
`
`An optional code field within the E.164 numbering plan which identifies the destination network serving the destination
`subscriber. It performs the destination network selection function of the NDC. In some instances it can be combined with
`a trunk code to form the NDC. The DN code can be a decimal digit or a combination of decimal digits (not including any
`prefix).
`
`4.13
`
`country code (CC) for global services
`
`F: indicatif de pays pour les services mondiaux
`S: indicativo de país para servicios mundiales
`
`A 3-digit Country Code used to identify the global service.
`
`4.14
`
`global service
`
`F: service mondial
`S: servicio mundial
`
`A service defined by the ITU-T, provisioned on the public switched network, to which the ITU-T has assigned a specific
`country code to enable the provision of that international service between two or more countries and/or integrated
`numbering plans.
`
`4.15
`
`global subscriber number (GSN)
`
`F: numéro d'abonné mondial (GSN)
`S: número de abonado mundial (GSN)
`
`The number identifying a subscriber for a particular global service.
`
`4.16
`
`country code (CC) for Networks
`
`F: indicatif de pays pour les Réseaux
`S: indicativo de país para Redes
`
`A shared 3-digit Country Code used in combination with an identification code to identify an international Network.
`
`4.17
`
`Network
`
`F: Réseau
`S: Red
`
`Internationally interconnected physical nodes and operational systems operated and maintained by one or more ROAs to
`provide public telecommunications services. Private networks are not included in this definition. Note that the use of
`capital "N" in Networks indicates that this definition applies.
`
`4
`
`Recommendation E.164 (05/97)
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 10
`
`

`

`4.18
`
`identification code (IC)
`
`F: code d’identification (IC)
`S: código de identificación (SC)
`
`The code subsequent to a shared E.164 country code that uniquely identifies an international Network.
`
`4.19
`
`subscriber number (SN)
`
`F: numéro d'abonné (SN)
`S: número de abonado (SN)
`
`The number identifying a subscriber in a network or numbering area.
`
`4.20
`
`escape code
`
`F: code d'échappement
`S: código de escape
`
`One or more digits which indicate that the digits that follow are from a specific numbering plan which is different from
`the originating numbering plan.
`
`An escape code can be carried forward through the originating network and can be carried across internetwork and
`international boundaries. Therefore the digits used for escape codes should be standardized.
`
`5
`
`Abbreviations
`
`This Recommendation uses the following abbreviations.
`
`CC
`
`Country Code
`
`CCITT
`
`International Telegraph and Telephone Consultative Committee
`
`CDLI
`
`CLI
`
`COLI
`
`DN
`
`GSN
`
`IC
`
`IN
`
`ISDN
`
`ITU
`
`Called Line Identity
`
`Calling Line Identity
`
`Connected Line Identity
`
`Destination Network
`
`Global Subscriber Number
`
`Identification Code
`
`Intelligent Network
`
`Integrated Services Digital Network
`
`International Telecommunication Union
`
`ITU-T
`
`International Telecommunication Union – Telecommunication Standardization Sector
`
`NDC
`
`NPI
`
`National Destination Code
`
`Numbering Plan Identifier
`
`N(S)N
`
`National (Significant) Number
`
`NT2
`
`PSTN
`
`ROA
`
`SA
`
`SN
`
`TC
`
`Network Termination 2
`
`Public Switched Telephone Network
`
`Recognized Operating Agency
`
`Sub-Address
`
`Subscriber Number
`
`Trunk Code
`
`Recommendation E.164 (05/97)
`
`5
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 11
`
`

`

`TON
`
`TSB
`
`Type of Number
`
`Telecommunication Standardization Bureau
`
`UIFN
`
`Universal International Freephone Number
`
`6
`
`International public telecommunication number structure
`
`This clause identifies three different structures for the international public telecommunication number:
`•
`•
`•
`
`International public telecommunication number for geographic areas.
`
`International public telecommunication number for global services.
`
`International public telecommunication number for Networks.
`
`6.1
`
`International public telecommunication number length
`
`The ITU-T recommends that the maximum number of digits for the international geographic, global services, and
`network applications should be 15 (excluding the international prefix). Administrations are invited to do their utmost to
`limit the digits to be dialled to the degree possible consistent with the service needs.
`
`6.2
`
`Structure of the international public telecommunication number
`
`6.2.1
`The international public telecommunication number for geographic areas (Figure 1) is composed of a variable
`number of decimal digits arranged in specific code fields. The international public telecommunication number code
`fields are the Country Code (CC) and the National (Significant) Number N(S)N .
`
`Figure 1 shows the international public telecommunication number structure for geographic areas.
`
`CC
`
`NDC
`
`SN
`
`1 to 3 digits
`
`Max (15-n) digits
`
`National (significant) number
`Max 15 digits
`
`International public telecommunication
`number for geographic areas
`
`T0206150-96/d01
`
`CC Country Code for geographic areas
`NDC National Destination Code (optional)
`SN
`Subscriber Number
`n
`Number of digits in the country code
`
`NOTE – National and international prefixes are not part of the international public telecommunication number for
`geographic areas.
`
`Figure 1/E.164 – International public telecommunication number structure for geographic areas
`
`FIGURE 1/M.3020...[D01] = 3 CM
`
`6.2.2
`The international public telecommunication number for global services (Figure 2) is composed of decimal
`digits that vary depending on the specific service. The international service number code fields are the 3-digit country
`code and the Global Subscriber Number (GSN).
`
`Figure 2 shows the international public telecommunication number structure for global services. The use of this format is
`service specific and is dependent on the numbering requirements as detailed in the appropriate Recommendation,
`e.g. Recommendation E.169 – Application of Recommendation E.164 numbering plan for universal international
`freephone numbers for international freephone service.
`
`6
`
`Recommendation E.164 (05/97)
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 12
`
`

`

`CC
`
`3 digits
`
`GSN
`
`Max 12 digits
`
`Max 15 digits
`
`International public telecommunication
`number for global services
`
`T0206160-96/d02
`
`CC Country Code for Global Services
`GSN Global Subscriber Number
`
`NOTE – National and international prefixes are not considered to be part of the international public telecommuni-
`cation number for global services.
`
`Figure 2/E.164 – International public telecommunication number structure for global services
`
`FIGURE 1/M.3020...[D01] = 3 CM
`
`6.2.3
`The international public telecommunication number for Networks (Figure 3) is composed of decimal digits
`arranged in three code fields. The code fields are the 3-digit shared Country Code (CC) field, the IC field, which varies
`in length between 1 to 4 digits, and the Subscriber Number (SN) which can be up to 15 minus the number of digits in the
`CC and IC fields.
`
`Figure 3 shows the international public telecommunication number for Networks.
`
`CC
`
`3 digits
`
`IC
`
`SN
`
`1 to 4 digits
`
`Max (12-x) digits
`
`Max 12 digits
`
`Max 15 digits
`International public telecommunication
`number for networks
`
`T0206170-96/d03
`
`CC Country Code for Networks
`IC
`Identification Code
`SN
`Subscriber Number
`x
`Number of digits in Identification Code (IC)
`
`NOTE – National and international prefixes are not part of the international public telecommunication number for
`Networks.
`
`Figure 3/E.164 – International public telecommunication number structure for Networks
`
`FIGURE 1/M.3020...[D01] = 3 CM
`
`6.3
`
`Assignment of Country Codes (CCs)
`
`6.3.1
`
`Country codes may be assigned to either geographic areas, global services or shared among Networks.
`
`Recommendation E.164 (05/97)
`
`7
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 13
`
`

`

`6.3.2
`the TSB.
`
`The status of country codes for geographic areas, global services, and Networks is published periodically by
`
`6.3.3
`
`All spare country codes will be assigned on a three-digit basis.
`
`6.3.4
`The assignment and reservation of country codes shall follow the criteria and procedures as defined in
`Recommendation E.164.1.
`
`6.4
`
`Assignment of Identification Codes
`
`6.4.1
`The list of assigned and reserved identification codes with their associated country codes is published
`periodically by the TSB.
`
`6.4.2
`The assignment and reservation of identification codes shall follow the criteria and procedures as defined in
`Recommendation E.164.1.
`
`7
`
`International public telecommunication number for geographic areas
`
`Principles, criteria and procedures for the assignment of international public telecommunication numbers for geographic
`areas may be found in Recommendations E.190 and E.164.1.
`
`Country Code for geographic areas
`7.1
`The Country Code is used to select the destination country3 and varies in length from 1 to 3 digits.
`
`7.2
`
`National (significant) number
`
`7.2.1
`The ITU-T recommends that the maximum number of digits of the National (Significant) Number, N(S)N,
`should be equal to 15-n, where n is the number of digits of the country code.
`
`7.2.2
`The N(S)N is used to select the destination subscriber. In selecting the destination subscriber, however, it may
`be necessary to select a destination network. To accomplish this selection, the N(S)N code field comprises a National
`Destination Code (NDC) followed by the Subscriber’s Number (SN). The NDC and SN may be inseparably connected in
`some national applications to form a single composite dialling sequence.
`
`7.2.3
`The NDC field, if used, will be variable in length depending upon the requirements of the destination country.
`Each NDC may have one of the following structures:
`a)
`a Destination Network (DN) code, which can be used to select a destination network serving the destination
`subscribers;
`a Trunk Code (TC);
`any combination of Destination Network (DN) code and Trunk Code (TC).
`
`b)
`c)
`
`The NDCs of an Administration may consist of one of the above structures or others as defined by national
`Administrations.
`NOTE – The sequences DN-TC and TC-DN are a national matter. The various NDC options (TC/DN) are reflected in Figure 4.
`
`7.2.4
`
`The SN varies in length depending on the requirements of the destination country.
`
`7.2.5
`Where appropriate, identification of a specific network within the destination country shall be through the use
`of a NDC incorporated in the public telecommunication number.
`
`_______________
`
`3 Whenever the term country, destination country or originating country is used in this subclause, it identifies a specific country, a
`group of countries in an integrated numbering plan or a specific geographical area.
`
`8
`
`Recommendation E.164 (05/97)
`
`AT&T Exhibit 1014
`AT&T v. VoIP, IPR 2017-01384, Page 14
`
`

`

`NDC Structure
`
`Type 1
`
`NDC Structure
`
`Type 2
`
`NDC Structure
`
`Type 3
`
`NDC Structure
`
`Type 4
`
`DN
`
`TC
`
`DN
`
`TC
`
`TC
`
`DN
`
`T0206180-96/d04
`
`Figure 4/E.164 – Options for NDC structure
`
`FIGURE 1/M.3020...[D01] = 3 CM
`
`7.3
`
`Prefixes
`
`7.3.1
`
`Applications
`
`A prefix is an indicator consisting of one or more digits that allows the selection of different types of number formats,
`networks and/or service. Prefixes are not part of the number and are not signalled over international boundaries. It is a
`national matter to decide whether prefixes can be signalled between domestic networks.
`
`Prefixes can also be used for c

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket