1. Operation & Numbering 1 Telecommunication Standardization Bureau Operation and Numbering Presented by Geng-Sheng LI Email: geng-sheng.li@itu.int

2. Operation & Numbering 2 Telecommunication Standardization Bureau Introduction Another aspect of TSB is that it is also responsible for the application of ITU-T Recommendations on Operation and Numbering issues, and to make known these Recommendations to Administrations and Telecom Operators: Collects and Disseminates Information Publishes the Operational Bulletin Maintain an ITU-T website on numbering Assigns Codes and Numbers Acts as Registrar for Global Numbers

3. Operation & Numbering 3 Telecommunication Standardization Bureau Responsibilities To collect and disseminate information from Administrations/ROAs according to Article 8 of ITR (WATTC-88) and Article No. 202 of the ITU Convention (PP-98); using: Circular Letters Questionnaires Correspondence

4. Operation & Numbering 4 Telecommunication Standardization Bureau ITU Operational Bulletin Favoured medium for more than 40 years Issued twice a month ( 1 st and 15 th each month) in 3 languages, 24 issues per year. Contains information about: Operational Bulletin: Telegram/Telex Telephone service Mobile Phones Data Changes in Administrations Maritime Mobile Service Other information, etc. http://www.itu.int/itu-t/bulletin/index.html

5. Operation & Numbering 5 Telecommunication Standardization Bureau Subscription to ITU Operational Bulletin Five media to obtain the Bulletin: Printed version (delivered by airmail); Version delivered by fax; Version delivered by E-mail; Electronic version accessible online; Electronic version of single issue via ITU electronic bookshop

6. Operation & Numbering 6 Telecommunication Standardization Bureau Subscription fee of ITU Operational Bulletin The yearly subscription fee (24 issues, included annexes): Catalogue price: 385 CHF Member Stats and Sector Member:330 CHF Least developed countries: 77 CHF

7. Operation & Numbering 7 Telecommunication Standardization Bureau ITU Circular Telegrams … were used for important or urgent communications to Member States. Now replaced by other means, such as Facsimile etc.

8. Operation & Numbering 8 Telecommunication Standardization Bureau ITU-T Website (1) A homepage has been created for ITU Operational Bulletin: www.itu.int/itu-t/bulletin/index.html It includes:  ITU Operational Bulletin  Lists annexed to the ITU Operational Bulletin  How to order ITU Operational Bulletin – Publication Notice

9. Operation & Numbering 9 Telecommunication Standardization Bureau ITU-T Website (2) A homepage has also been created http://www.itu.int/itu-t/inr/nnp/http://www.itu.int/itu-t/inr/nnp/ which assembles information on National Numbering Plans for all countries Administrations are requested to provide either a link to their numbering Websites or the text to be posted on TSB Website New Rec. E.129 gives some examples of how the format of the numbering plan should be presented A Notification Service is also available to notify you of any changes as they occur

10. Operation & Numbering 10 Telecommunication Standardization Bureau Telephone Service Geographical country code Network country code Group of countries Trial country code Global Services country code ITU-T Recommendation E. 164 Assigned country codes List of E.164 Country Codes annexed to O.B. No. 763 (1.V.2002)

11. Operation & Numbering 11 Telecommunication Standardization Bureau Telephone Service Geographical country code: Botswana = +267 Network country code: Global International ATM network (Telekom Malaysia) Network = +882 31 Group of countries: European Telephony Numbering Space = +388 3 Trial country code: Neustar for ENUM trial = +991 001 Global Services country code: Universal International Freephone Number = +800 For example:

12. Operation & Numbering 12 Telecommunication Standardization Bureau Telephone Service Notification of National Numbering Changes: ITU-T Recommendation E.164, paragraph 7.4.2 asks Administrations: to advise TSB of NNP changes 2 years in advance to use the 0 as national prefix to use 00 as international prefix To have a maximum of 15 digits

13. Operation & Numbering 13 Telecommunication Standardization Bureau Telephone Service Notation of national and international telephone numbers, etc. See ITU-T Recommendation E.123 Symbols to be used in letter heads or business cards e.g. Tel: +267 65 0300 Fax: +267 35 7976 Mobile: E-mail: Web:

14. Operation & Numbering 14 Telecommunication Standardization Bureau Telephone Service List of Various tones used in national networks annexed to O.B. No. 665 (1.IV.1998) (Rec. E.180 and E.182) Dial Tone Ringing Tone Busy Tone Congestion Tone Special Information Tone Call waiting Tone Pay Tone

15. Operation & Numbering 15 Telecommunication Standardization Bureau Telephone Service List of Mobile access codes/numbers annexed to O.B. 765 (1.VI.2002) Different charges for fixed and mobile network Non-acceptance of collect calls to mobile terminals

16. Operation & Numbering 16 Telecommunication Standardization Bureau Telephone Service List of Dialling Procedures Annexed to O.B. No. 759 (1.III.2002) Country Codes Prefixes National (significant) numbers

17. Operation & Numbering 17 Telecommunication Standardization Bureau Issuer Identifier Numbers (IIN) See ITU-T Recommendation E.118 - Based on ISO-7812 TSB acts as Registrar, List of IIN annexed to O.B. No.757 (1.II.2002) Used for Subscriber Identification Module (SIM) cards. Format = 89 + E.164 country code + two or three digits, e.g. Botswana: 89 267 01 A single IIN is assigned to Card Issuers from the ITU’s block of “89”

18. Operation & Numbering 18 Telecommunication Standardization Bureau Signalling Area Network Code (SANC) International Signalling Point Code (ISPC) is used to identify a signalling point within international signalling system No.7 network ISPC = 14-bit binary code SANC = combination of NML and K-D CBA identifies a specific signalling point which, when combined with SANC, = 14-bit ISPC Administrations responsible for allocation of ISPCs: Rec. Q.708

19. Operation & Numbering 19 Telecommunication Standardization Bureau SANC/ISPC List of SANC annexed to O.B. No. 767 (1.VII.2002) List of ISPC annexed to O.B. No.761 (1.IV.2002) Botswana: 6-104 Zambia: 6-090-0 (Lusaka Gateway)

20. Operation & Numbering 20 Telecommunication Standardization Bureau Data Country or Geographical Area Code Public Data Networks – See Rec. X.121 Data Country Codes (DCC) = 3 digits: allocated by TSB Data network Identification Code (DNIC) = DCC + 1 digit network code: allocated by each Administration List of DCC and List of DNIC annexed to O.B. No. 720 (15.VII.2000) and O.B. No. 746 (15.VIII.2001), e.g. Gambia 607 0 GAMNET

21. Operation & Numbering 21 Telecommunication Standardization Bureau Mobile Country Codes (Rec. E.212) Lists annexed to the O. B. No. 741 (1.VI.2001)   See ITU-T Rec. E.212   Non-diallable numbers   Used to identify Mobile Country Code (MCC) and its networks   MCC format = 3 digits – assigned by TSB, e.g. Botswana=652   Mobile network Codes (MNC) = 2 digits after MCC – assigned by Administrations, notified to TSB, List No. 1 published in O.B. No. 768 of 15.VII.2002)

22. Operation & Numbering 22 Telecommunication Standardization Bureau ITU Carrier Codes List is only available in electronic version: http://www.itu.int/itu-t/inr/icc/index.html A Carrier is any operating company that services/maintains international/domestic leased circuits, switched circuits, digital blocks and so on. See Rec. M.1400 and (see TSB Circular 115 of 2 July 2002) ICC = Maximum 6 alphanumeric characters, e.g. Botswana: BTC=Botswana Telecom Corp.

23. Operation & Numbering 23 Telecommunication Standardization Bureau Administration Management Domain Name (ADMD) List annexed to the O. B. No.725 (30.IX.2000) See Recommendation F.400/X.400: Message Handling Service (MHS) Possible for more than one ADMD per country Format: e.g. G=robert (given name; S=ryan (surname); O=ibm (organization); A=ibm400 (administration domain name)C=ie (country code ISO 3166)

24. Operation & Numbering 24 Telecommunication Standardization Bureau Telegram and Telex Services Lists annexed to the O. B. Nos.669; 693 and 764 See Rec. F.1; F.31; F.68 and F.69 5-letter code groups for international public telegram service (e.g. WALPU = referring to your…….) Telegram Destination Indicators = 4 letters (first two-letter: network code; the 3 rd and 4 th letters: office code) e.g. BDGA, BD=BTC – Botswana Telecom Corpo.; GA=Gaborone Tele Destination Codes (TDC) and Telex network Identifier codes (TNIC) e.g. TDC=962 TNIC=BD

25. Operation & Numbering 25 Telecommunication Standardization Bureau International Network Identification Codes Assigned to ATM and Frame Relay Networks See Recommendations E.164 and X.125 Code = E.164 country code followed by national network identifier (max. 8 digits) Codes identifying networks are required for use within Frame Relay and ATM signalling protocols

26. Operation & Numbering 26 Telecommunication Standardization Bureau Country and Area Codes for Non- Standard facilities in Telematics Services See Rec. T.35 for the procedures of code allocation Unique code allocated to each provider: 3 parts Code consists of 8 bits from b 1 to b 8 e.g. Botswana: 0001 0101 1.Country code 2.Terminal provider code 3.Terminal provider orientated code (defined by provider) List annexed to O.B. No. 766 15.VI.20020

27. Operation & Numbering 27 Telecommunication Standardization Bureau Bureaufx Table Table is only available in electronic version: http://www.itu.int/itu-t/inr/bureaufax/index.html See Rec. F.170 International facsimile service exchange between public bureaux Contains information required for routing traffic and operational aspects of service offered Information posted on Website

28. Operation & Numbering 28 Telecommunication Standardization Bureau Suspension of Services According to Article 35 of the ITU Constitution and Article 7 of ITR, Administrations must inform the ITU about: Suspension and / or interruption of telecommunication services Restriction in telecommunication services, such as Call-Back, Collect Call, and so on

29. Operation & Numbering 29 Telecommunication Standardization Bureau Miscellaneous The following information is also published in O.B.: Public Holidays Legal Time Changes (summer and winter times or daylight saving time) Changes in Administrations/ROAs Privileged Communications

30. Operation & Numbering 30 Telecommunication Standardization Bureau Global Services Universal International Freephone Number – UIFN Universal International Shared Cost Number – UISCN Universal International Premium Rate Number – UIPRN Universal Personal Telecommunication – UPT ITU International Network Designator Address – ITU IND AESA

31. Operation & Numbering 31 Telecommunication Standardization Bureau UIFN See ITU-T Recommendations E.152 and E.169 Allows IFS (International Freephone Service) callers in other countries to call the IFS customer free of charge All charges paid by IFS customer Format = +800 XXXX XXXX See O.B. Nos. 628 & 718

32. Operation & Numbering 32 Telecommunication Standardization Bureau UISCN See ITU-T Recommendations E.154 and E.169.3 Allows ISCS (International Shared Cost Service) callers in other countries to call an ISCS customer at a rate equivalent to the national call charge in country of origin All other charges paid by ISCS customer Format = +808 XXXX XXXX See O.B. Nos. 732 & 734

33. Operation & Numbering 33 Telecommunication Standardization Bureau UIPRN See ITU-T Recommendations E.155 and E.169.2 Issued for IPRS (International Premium Rate Service), enabling a wide range of products offered by information service providers in one country to be made available to callers in another country Format = +979 Y XXXX XXXX Y = charging indicator (CI) Only CIs 1,3,5 and 9 are assigned Categories of CIs = high, medium, low and special See O.B. Nos. 729 & 732

34. Operation & Numbering 34 Telecommunication Standardization Bureau UPT See ITU-T Recommendation E.168 Introduces the concept of personal mobility across networks Includes ISDN, PSTN, PLMN and PSPDN amongst others Format is likely to be +878 XX…. (still under study)

35. Operation & Numbering 35 Telecommunication Standardization Bureau ITU IND AESA See ITU-T Recommendation E.191 Established by the ITU for service providers of ATM services Enables an ATM addressing system to be implemented for public ATM services that may not be offered internationally ITU proposes that all ASPs use this as the preferred method of B-ISDN addressing See O.B. Nos. 736 & 746

36. Operation & Numbering 36 Telecommunication Standardization Bureau ITU IND AESA Format The ITU IND AESA format uses the individual AFI 77

37. Operation & Numbering 37 Telecommunication Standardization Bureau Summary Codes / numbers - as already mentioned Notification Forms to be sent to TSB Procedures for reservation of Global Numbers E.164 National Numbering Plan http:www.itu.int/itu-t/inr/index.html