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					National Numbering Plan Strategy

        Mahmoud Wreikat

         mwreikat@sepme3.hbs.edu



         ITU/CoE- Sunaa Yemen
               Sept.2004
        CONTENTS
•Numbering
•Effective Numbering activities
•Shared Revenue Services
•Shared cost Services
•Freephone services
•What is E.164?
•Key Elements/ ITU-T Structure E.164
•Key Elements Numbering Plan
•Key Elements/ Guidelines
•Numbering, Licenses & Laws
•Function of Numerating Unit
•Ongoing Joint Responsibilities
•Unusable numbering capacity
•Numbering –Principles
         Numbering

  Ensures equal and simple
access to the various networks
         and services
                       Numbering
• A number (string of decimal digits) uniquely indicates the
  public network termination point and contains the
  information to route the call to this termination point at
  national or international level (with country code).
• The National Numbering Plan is the set of numbers
  identifying any termination points of fixed or mobiles
  networks and telephony services, used for routing calls, or
  access to the external resources.
• The National Numbering Plan is a part of the worldwide
  numbering plan (E 164). Gov draws up and manages the
  National Numbering Plan (ITU - the worldwide numbering
  plan).
• There are others plans dealing with addressing (IP
  addresses, DNS, etc.).
  Effective Numbering activities-1:
• Gov. pursues its numbering activities in
  connection at the international level.
• A consultative numbering committee, chaired
  by Gov, serves as a forum for all sector
  participants affected by numbering issues:
  operators, service providers, manufacturers,
  users, etc.
• Gov adopted rules defining the actual
  procedures for reservation, allocation, control,
  abrogation, publication, etc.
 Effective Numbering activities-2:
• Gov allocates, on a case-by-case basis, the
  resources (prefixes, numbers and numbering
  ranges) required to ensure fair competition
  between network operators;
• The conditions under which these numbering
  resources may be used are fixed, either in the
  operator's schedule of conditions or in the
  decision transmitted to the operator by Gov.
• The operators may pay a fee which covers the
  cost of managing the numbering plan and
  monitoring its use.
    Effective Numbering activities-3:
• Gov draw up and manages the National Numbering plan:
  – principle of long-distance carrier selection using a single digit or a four-
    digit prefix.
  – definition of non-geographic numbers to identify service categories by
    the tariff charged to the caller : freephone numbers, shared cost numbers
    and shared revenue numbers.
          – Freephone numbers are free of charge for the caller.
          – Shared cost numbers, the cost is divided between the called
            and calling parties.
          – Shared cost numbers, the called party is reimbursed by the
            telecommunications service provider.
  – opening up the 0XXX numbering range for Internet dial-up access.
               Shared Revenue Services
                    Code = (0)900


Called Party                          Calling Party
Revenue = X                           Charge = 100+X

                   Network                   
                 Network Conveyance
                    Charge = 100
               Shared cost Services
                   Code (0)800


Called Party                          Calling Party
Charge = 50                           Charge = 50

                 Network                     
               Network Conveyance
                  Charge = 100
               Freephone services
                 Code = (0)800

Called Party                        Calling Party
Charge = 100                        Charge = Free

                 Network                   
               Network Conveyance
                  Charge = 100
          Before liberalization

•   Numbering plan for the existing network
•   Operator responsible for numbering
•   New operators need new numbers
•   Conflict of interest
•   Need for independent administration
                 What is E.164?
• ITU-T Recommendation E.164: “The
  international public telecommunication
  numbering plan”
  – Tied to treaty obligations (specific roles and
    obligations defined for ITU Member States and TSB
    Director)
  – Defines number structure and functionality for four
    principal categories of numbers:
     •   Geographic Areas
     •   Global Services
     •   Networks
     •   Groups of Countries (“GoCs”)
Examples of E.164 Resources
  • Geographic areas
    – ITU Member States, including integrated
      numbering plan involving more than one (e.g., +1)
  • Global Services
    – e.g., Universal International Freephone Numbers
      (+800)
  • Networks
    – Global Mobile Systems (+881 + 1 digit IC)
    – Shared code for Networks (+ 882 + 2 digit IC)
  • Groups of Countries
    – e.g., ETNS
                Related to E.164
• ITU-T Recommendation E.164.1: Criteria and procedures for the
  reservation, assignment and reclamation of E.164 country codes
  and associated Identification Codes (ICs);
• ITU-T Recommendation E.164.2: E.164 numbering resources for
  trials (to be published);
• Determined Recommendation E.164.3: Principles, criteria and
  procedures for the assignment and reclamation of E.164 country
  codes and associated identification codes for Groups of Countries
  (determined at January 2001 meeting of SG2);
• ITU-T Recommendation E.190: Principles and responsibilities for
  the management, assignment and reclamation of E-series
  international numbering resources;
• E.195: ITU-T International numbering resource administration
     Key Elements/ ITU-T Structure E.164

Format:-

00 +CC+ NSN (CC +NSN must not exceed 15 characters)

NSN definition: NDC + SN

NDC=Area Code

SN= Subscriber Number (for local dialling)
     Key Elements/ ITU-T Structure E.164

Format:-

00 +CC+ NSN (CC +NSN must not exceed 15 characters)
00   965   1 8187912
NSN definition: NDC + SN
                 1   8187912
NDC=Area Code
    1
SN= Subscriber Number (for local dialling)
    8187912
          Key Elements Numbering Plan

• Existing structure of Numbering Plan maintained

 Prefix     Designation
 00         International Code
 01
 02
 03
 04
 05
 06
 07         Mobile Services
 08         Special Services (Free Phone, Fixed Cost and Shared Cost)
 09         Premium Rate Services (PRS)
   Key Elements/ Guidelines-1

•Implementation principles
•Description of the Gov Numbering
 Database
•Who can apply for numbers?
•Reserving numbers or codes
•Assessment of applications
      Key Elements/ Guidelines-2

•Response times and publicity
•Conditions placed on allocations
•Withdrawal of reservations and allocations
•Appeals procedure
•Annual report, audit and long range
 forecasts
Numbering, Licenses & Laws

• Primary legislation on telecommunications

• A license for the existing network operator

• License condition on numbering

• Review of existing Numbering Plan

• Update of Numbering Plan

• Move to independent administration.
    Function of Numerating Unit

•   Set-up and maintain the data base
•   Filter and process applications
•   Make reservations and allocations
•   Publication current status details-
         – Designated codes and number ranges
         – Reservation (service details confidential)
         – Allocation with planned in service dates.
        Ongoing Joint Responsibilities

•   Maintain accurate statues records
•   Measure utilization
•   Prepare 5-year forecasts of demand
•   Conserve capacity where necessary
•   Identify and solve potential shortages
•   Publication annual report on numbering
•   Periodic review and update of plan
         Unusable numbering capacity

•   10% - Digit 0 – National dialing prefix
•   10% - Digit 1xx(x) – Short code access
•   10% - Digit Y – Reserved for expansion
•   10% - Protected after previous use
•   Balance = 60%
•   Also – local network structure may use
    some number-blocks better than others
     Numbering –Principles

• Conformance with International
  Recommendations of ITU-T
• Numbering Plan - longevity
• Clear and understandable
• Capable of expansion for new operators
• Reflect services and location
• Be innovative
• Neutral as regards competition
• Objective and non-discriminatory
                   Thank You
              Mahmoud Wreikat

                     mwreikat@sepme3.hbs.edu




• References and resources
   – http://www.itu.int/
   – http://www.hbs.edu

				
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