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Implementation of ENUM on telecommunication networks

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Presentation on theme: "Implementation of ENUM on telecommunication networks"— Presentation transcript:

1 Implementation of ENUM on telecommunication networks
in Russian Federation Alexey Ivanov, PJSC GIPROSVYAZ ITU Regional Forum, Saint-Petersburg, Russia, 4-6 June 2018

2 ENUM Brief Review ENUM enables the addressing of telecom services, provided on the base of Internet technologies and infrastructure by means of standard subscriber’s telephone number in E.164 format The access to the addressing services with the help of the Internet is assured by ENUM through mapping E.164 telephone number to URI set identifying the subscriber when rendering the corresponding services (IETF RFC 6116) The mapping of E.164 number to URI set is provided by DNS system standard procedures (URIs are contained in NAPTR resource records returned by authoritative server) ENUM standards and recommendations development is performed within the scope of IETF and ITU-T

3 The Benefits of ENUM ENUM/DNS The ability of using a single and simple subscriber ID for a wide range of modern services provided on the base of IP protocols The integration of new multimedia services with telephone services Optimal traffic routing to the gateway, which is responsible for the operation of a particular service, including the interconnection of communication networks +7(990) Service cloud Service cloud tel: mailto: sip: fax: Service cloud Service cloud

4 ENUM Hierarchy Tier 0: Global level ENUM infrastructure based on DNS system architecture functionally includes three hierarchy levels The various combinations of the specified functions within the accepted organizational and technical model of functioning of ENUM infrastructure is put into practice Registry and name servers of ENUM top level domain (ENUM root zone) Contains information about delegation of ENUM national domains and their authoritative servers Tier 1: National level Registry and name servers of ENUM national domains Contains information about delegation of ENUM domains that correspond to the individual phone codes or the ranges of numbers Tier 2: Service provider level The registration of information about telephone numbers in ENUM system Contains authoritative servers with NAPTR resource records that correspond to the individual phone numbers

5 ENUM Existing Infrastructures
Public (standardized) ENUM Private ENUM (for example GSMA) Functions in accordance with IAB instructions on base of e164.arpa top level domain which is officially delegated by IANA for ENUM National domains are delegated in agreement with the national authorities Administered by ITU-T TSB ENUM infrastructure is served by RIPE NCC Company (the Netherlands) There were disagreements in selecting e164.arpa because of its administration jurisdiction - (post transition) IANA Functions in accordance with the instructions established by its administration, on the base of private domain, different from e164.arpa (e164enum.net domain is used by GSMA) National delegations don’t require the participation of national authorities Administered by GSMA ENUM infrastructure is served by Neustar (The USA) The information of the Tier 1 and Tier 2 levels is published in the GSMA Tier 0 registry

6 Actual prerequisites for ENUM Development in Russia
Large fixed telephone network service providers start to introduce NGN/IMS technologies Small and medium network service providers largely use VoIP technologies Mobile network service providers introduce VoLTE/5G technologies Networks become All-IP Network functional architecture fully change Telecommunication networks interconnection changes ENUM is a fundamental technology to provide network interaction for new architecture and functions The development of ENUM technology requires changing national legislation for network architecture and interconnection now in use

7 ENUM as a Critical Resource
All telephone number assignment is governed by the State in Russian Federation Telephone number assignment list is kept by the state agency (Rossvyaz) Russian ENUM technology based system should be introduced on the basis of the Unified National Significant Number Assignment List which should include all national significant numbers and national destination codes (both geographic ABC and non-geographic DEF) used in Russian Federation The Unified National Significant Number Assignment List should become one of the critical elements of the Russian Federation network interconnection system Russian ENUM technology based system should be secure and reliable. It should also be able to operate autonomously from foreign Internet infrastructure Existing international ENUM technology based systems (public or private) do not fully comply with Russian security and reliability requirements Thus a new ENUM infrastructure should be created. It should include national zone under the regulatory authority of the national government and international zone under the regulatory authority of a generally recognized international organization

8 Russian ENUM technology based system as it should be
Russian ENUM technology based system functioning rules should be set by the State regulatory authority Russian ENUM technology based system administration should also be governed by the State regulatory authority Russian ENUM technology based system administrator should develop interaction rules (rules to interconnect to national DNS, and MNP/LNP DB) and keep all the necessary reference data including ENUM system registry Russian ENUM technology based system higher levels should be operated by ENUM National Operator. ENUM National Operator should be chosen by the State regulatory authority Tier 0 level should be governed by a generally recognized international organization which acts in consideration with national regulators’ opinion Network service providers should operate authorization servers with their subscribers’ NAPTR resource records Tier 0 (master) International; organization ENUM Administrator ENUM Operator Tier 0 (slave) DNS root («slave») MNP DB Tier 1 Russian Federation LNP DB Telco Network Tier 2 Tier 2 Tier 2 Tier 2 Network Service Providers

9 First steps to create Russian ENUM technology based system
Cooperate with an international telecommunication union to create the unified international ENUM technology based system Hold talks with other interested states to achieve national ENUM technology based system interconnection Develop rules under which Russian ENUM technology based system should be designed and operate Organize a test zone for Russian ENUM technology based system Make changes to State regulations and standards to implement Russian ENUM technology based system

10 Thank you! Alexey Ivanov Head of the Division of Information and Analytics PJSC GIPROSVYAZ +7 (916) (499) add ya Khoroshevckaya ul., 11, Moscow, Russia,

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