1. TMN Workshop Antwerp, 27 May1998 Reference Framework for OSS Inter-connection inc. case studies on Number Portability, Charging and Accounting Dave Milham BT EURESCOM Project P811 Leader

2. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 P811 Overview OSS Interconnection Framework –Requirements –The need for enhancement –OSS Framework Case Studies –Number Portability - Vertical study Modelling Numbers and Number porting Repair and Provisioning Processes Information Models –Charging and Accounting - Horizontal Study Real time Charging Linking network and OSS studies

3. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Customer PNO OSS PNO OSS PNO OSS PNO OSS Xcoop Xuser PNO OSS PNO OSS Xsuper Deregulation impacts More organisations able to offer Telecom Services Organisations can perform more than one role Organisation roles no longer static Drivers: Deregulated Telecom Market EURESCOM TMN Model (1994) –Based upon concept of Public Network Operator (PNO) Regulated Monopolies

4. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 OSS Framework Studies Goal –Generic European Processes/components for OSS Interconnect –Follow NMF Common Interconnection Gateway ‘Use cases’ and Information Model Approach Capture Regulatory Requirements –European –National Adapt integrate other work –EURESCOM P609 Process Modelling –TINA -C Reference Framework and Reference Points –Roles and and relationships

5. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 OSS Interconnection Framework Information System Development Object model Use Case model Analysis modelDesign model Implementation model Business Model Development Business Process Model(s) System Function Business Process User Function Scope of P811 Generic requirements Generic OSS Processes Generic ‘Use cases’ Generic Information Models using practical examples of OSS interconnect Validated by case studies

6. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Applying the OSS Framework I.e Number Portability Charging and Accounting Generate Generic by use of examples eg access requests, Leased lines,etc

7. TMN Workshop Antwerp, 27 May1998 Number Portability (NP) Case Study

8. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 European Legislation on NP EC directive (for 1/1/2000) –by 1/1/1998: identification of technical, operational or regulatory barriers –by 1/6/1999: removal of all national regulatory barriers –From 1/1/2000, European customers will be able to demand that NP is immediately established between operators Currently NP is established on a bi-lateral agreement based on company readiness. Countries with NP deployed –UK, Netherlands, Denmark, France,…. Countries with plans to meet 2/1/2000 directive –Italy,...…

9. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 ETSI Number Portability Study ETSI Number Portability Task Force –Provides analysis of network solutions –Provides a set of network implementation options –Documented in Task Force Reports Service Definition Network Options ETSI Service Provider Portability –Geographic GNP (UK) and Local Number Portability LNP (USA) –non-Geographic NGNP also 800 service (USA) ETSI Location Portability –Retain number when moving within a region

10. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Scope of P811 NP study Analysis of Regulatory Requirements –Phase 1 National and European Development of OSS Scenarios and Solutions –Customer to Service Provider interfaces –Service Provider to Service Provider interfaces –Common solutions for Service Provider portability Develop Repair and Provisioning processes Information models Evolution to centralised number administration and porting facility European NP Administration Centre (ENPAC) Proposal

11. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Recipient Other SPs Subscriber Donor Recipient Donor Other SPs Subscriber “INSURANCE”MODEL “BANK”MODEL Subscriber-Operator Interaction Models

12. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 CLEARINGHOUSE (NPAC by ICC, IB by AUSTEL*) IB by AUSTEL*) BILATERALAGREEMENT Incumbent Operator mgt. i/f Incumbent Operator Incumbent Operator Super Parties mgt. i/f mgt. i/f mgt. i/f * * Number Portability Administration Centre, Illinois Commerce Chamber Independent Body, AUStralian TELecommunication authority CLEC Inter-Operator Interaction Models

13. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Existing Flows Subscription of a new line Withdrawal Location change New DN assignment Subscriber Profile Update Arrears Missing Flows Porting to/from a Competitor Returning to/from a Competitor Number Returning to/from a Competitor Subsequent Porting Example of OSS process: SERVICE DELIVERY OSS: new process flows

14. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 BT GNP experiences order-handling OSS Network fax orders electronic orders BT OLO It is essential that order-handling is automated when volume traffic is realised. The early definition of the order-handling interface is vital. It must be standardised across all carriers.

15. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Impact of NP on OSS - it’s everywhere ! Service Management System Network Operator Services Maintenance Services Billing Systems Network Manager new order-handling mechanism Billing changes Operator Assistance/ 999/Directory changes Network prefixes Network routing new Fault & Repair processes OSS Electronic Manual Number Administration/ reservation Number Administration/ reservation

16. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 P811 Number Portability - initial results Business interaction model based on roles Cover Geographic and Non Geographic Model of Numbers, Number Ranges and Regulators Demise of Number ranges Model ‘Number’, reservation and administration processes –Allocation processes –State model –Access users, processes and access/security rules Model Number Porting Processes ENPAC Euro NP Administration Centre –-a physical instantiation of Number /plan administration Number porting administration / agency Number reservation agent role

17. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Number Model Evolution Number Number Range Number Range Holder National Regulatory Authority 1+ Administers Assigns Defines 1+ Service User ‘owns’ Organisation Administers 1+ Current Constraint: must be Network Operator Current Constraint: Numbers allocated in ranges

18. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Number States Free RNR Reserved Active ANR UNR or T1 Expires DNR Porting MNRP T2 Expires Ported DNR T3 Expires RNRP Number Ownership Changes UNRP Number Ownership Changes

19. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Number Portability Roles Current Descriptions –Based on Current Organisations e.g. Public Network Operator, OLO, Regulator Models –Define Roles independent of current organisations –Service Provider –Network Operator –Number/plan Administration –Number Reservation –Number Porting Administration Network Operator Role Network Operator Role Service Provider Role Service Provider Role Traditional Public Network Operator PNO Number Reservation Number Reservation Number/plan Administration

20. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 OSS NP Scenarios NO 1 Key Coloured shape indicates where service is provided for the number. No. Reservation Agency n No. Reservation Agency 2 European Number Portability Admin Centre ENPAC Number reservation Number reservation Number Porting Administration Number Porting Administration PNO NO 2 NO n SP1 SP2 SPn SP3 SP4 No. Reservation Agency Number/plan Administration

21. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Moving to Service Provider 1 NO 1 Key Coloured shape indicates where service is provided for the number. No. Reservation Agency n No. Reservation Agency 2 European Number Portability Admin Centre ENPAC Number reservation Number reservation Number Porting Administration Number Porting Administration PNO NO 2 NO n SP1 SP2 SPn SP3 SP4 No. Reservation Agency Number/plan Administration Number/plan Administration

22. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Moving to Service Provider 2 NO 1 Key Coloured shape indicates where service is provided for the number. No. Reservation Agency n No. Reservation Agency 2 European Number Portability Admin Centre ENPAC Number reservation Number reservation Number Porting Administration Number Porting Administration PNO NO 2 NO n SP1 SP2 SPn SP3 SP4 No. Reservation Agency Number/plan Administration Number/plan Administration

23. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Next steps P811 runs to end 1998 P811 Initial Analysis and Design Euro NP OSS Experiments 199819992000 Euro NPAC Service Introduction Vendor discussions & Planning NMF NP Catalyst Project???

24. TMN Workshop Antwerp, 27 May1998 Charging and Accounting Case Study

25. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 P811 Charging and Accounting Context –Deregulation impacts: transparency, Equal access, cost representatives. –Work in progress in ITU, ETSI on signalling protocol to provide Charging Data e.g. DSS1, ISUP, INAP, SCP to SCP. –Work in progress in other forums like NMF on BAC –Agreements on SP/NO or NO/NO about circuit or service usage.

26. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 P811 Charging and Accounting Major topics –On line charging and call processing are tightly linked, for example, in Call Detail Records generation –On line Charging for services provided also by Network Operators and Service Providers –Off line covered Accounting and every aspects using CDRs transferred from network or service provider until billing requirements

27. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 P811 Charging and Accounting The expected result is: –To get generic aspects of OSS interconnection on this subject and on both side SP and NO by extending what is still existing –To cross requirements amongst the two level network and OSS –To extract what is needed and useful for services in particular NP –To open up on mobility with service like Virtual Home Environment

28. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901  Cover both Network and OSS issues  Real Time Charging Focus P811 Charging and Accounting

29. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 Summary Driven by deregulation and regulation Requirements and analysis focused Generic Framework for OSS interconnect –Follows NMF CIGP model Development of Numbering and Porting models –Logical roles –Model of ‘Number’ –State model for Number –Processes for management of: Numbers & Porting –Covering repair and provisioning processes Charging and accounting –OSS and network interconnect –On-line and off-line

30. TMN Workshop Antwerp, 27 May 1998 Dave Milham@bt.com +44 1473 64901 P811 Timescales Requirements –Issue 1 end April 1998 –Final up-issue in Deliverable 1 - December 1998 OSS Framework –Issue I Draft Framework September 1998 –Final up-issue in Deliverable 1 December 1998 Number Portability –OSS scenarios and requirements analysis - end May 98 –Provisioning processes - September 1998 –Repair processes - September 1998 –Security process requirements - October 98 –Information Model - November 98 –Final up-issue in Deliverable 2 - December 1998 Charging and Accounting