Rafael Leadbetter Head of CNS broadband converged & multimedia services John Barton

1. Raf Rafael Leadbetter Head of CNS broadband converged & multimedia services John Barton Voice Services & Interworking Design Authority Arvind Maheshwari WBCC End to End Design Lead

2. Arvind Introduction to WBCC

3. End user driven requirements “Why do I have another number for my broadband phone?” “I don’t know which phone to use to get the best calls costs!” “When I call a friend on his mobile from my broadband phone he does not know it is me calling!” “Why don’t I have the same terms and conditions on my broadband and old telephone service?” “I want control of the features I get from my provider!”

4. WBCC key Benefits • Allows CPs to differentiate and innovate via next generation applications by exploiting SIP • Improved end user experience • ‘On net’ and ‘off net’ service communality • Lower total cost of ownership

5. Overview of WBCC Internet CP IPVPN BRAS Hosted NTE Backhaul MSIL IP Video MSAN Hub SBC Voice Interconnect AGCF “ base - band ” voice Voice Call Server Key POSI CP/SP media signalling BT • BTW provides a single access voice and broadband product to CP • CP offers both voice and broadband based services to end user • Broadband component is as per WBC functionality • Baseband service will allow CPs to supply 21CN PATS services

6. December 2008 Capacity based billing Conversion from WLR (all PSTN) + WBC EUA to WBCC IVEUA - Authority of Transfer - Number Portability in CP domain IVEUA New Provide Voice EP Provide IVEUA Cease, Amend & Cancel Voice Route provide Schedule of functionality and features availability • March 2009 • - Ipstream & Datastream to WBCC • - SDSL to WBCC • - Reverse WBCC to WLR+SMPF • - Voice EP Modify • - Voice EP Cease • - CP call server interconnection Modify • CP call server interconnection Cease • - Amend • - Cancel June 2009 Other Conversions eg: VLA Modify CP Migration Movers Novations & Movations Name Changes

7. Network & product components Broadband path WBC/C Voice signalling path Voice media path BTW Offering AP EP Ethernet Edge Switch BRAS MDF MSAN Openreach Backhaul CP Network Broadband or voice context Voice PE S B C Voice Call MSIL Ethernet Edge Switch Voice VPN PE Server AGC VLC MSIL Voice EP Voice Route IVEUA (Integrated End User Access) WBCC WBCC

8. Network overview Delivers Broadband functionality Ethernet pipe through which Voice (signalling & media) & Broadband service VLANS can be conveyed BRAS BEA MSAN Openreach Backhaul H.248 signalling, AGC to MSAN EEA EEA SIP-UNI Signalling CP Network Broadband or PSTN context Voice PE SBC Voice Call MSIL WBCC VPN Delivers the voice features as determined by the CP’s service PE Server End User’s lines provided on Non-PSTN Voice VAG. Resilience scheme can be designed to offer legacy voice or broadband ‘availability’. Ethernet Edge Switch AGC Session Border Controller. Provides limited call control functionality inc. the ability to cut CDRs and Media functionality, e.g. Codecs. Dedicated Voice PE (IP) Router WBCC Media & Signalling stream SVLANs – shared with protected WLR3 voice SVLANs. Active SVLAN scan be selected via BFD N.b. BFD capability switches SVLAN if a Voice PE can not be reached Access Gateway Control – Separate from PSTN Call Server. Maps H.248 to SIP-UNI messages to enable a remote Call Sever to control End Users lines Broadband path Voice signalling path Voice media path

9. Arvind WBCC Product structure & Provisioning

10. Network & product components Broadband path WBC/C Voice signalling path Voice media path BTW Offering AP EP Ethernet Edge Switch BRAS MDF MSAN Openreach Backhaul CP Network Broadband or voice context Voice PE S B C Voice Call MSIL Ethernet Edge Switch Voice VPN PE Server AGC VLC MSIL Voice EP Voice Route IVEUA (Integrated End User Access) WBCC WBCC

11. WBCC Product Model Access MSIL WBCC Product Family Consumes Connects Voice EP IVEUA • Product Name • Product code • CRD • MSIL Service ID • POSI • Media Bandwidth • Signalling Bandwidth • Media VLAN TagID • Media IP Addess_CP • Media IP Address_BT • Signalling VLAN TagID • Signalling IP Addess_CP • Signalling IP Address_BT • SIP URI (Signalling VLAN) • Perfect Forward Secrecy • IKE Shared secret • IPSec SA Encryption algorithm type • Product Name • Product Code • CRD • Domain name • Private ID • Dial Plan • Serving • Exchange • Registration encryption key • List of prioritise EP Voice Route Product & Order details SIP configuration parameters Voice configuration parameters BB Parameters Access order parameters

12. Voice Extension Path - What is an EP? • A voice EP routes voice traffic from SBC located in a POSI to the MSIL • CP can have multiple Voice EPs connected to the MSIL • Configuration of two separate VLANs for • - Voice Media (10 to 800 Mbps) • - Voice Signalling (1 to 50 Mbps) • Logical Connection CCC will be used for managing signalling and media VLANs

13. Voice EP: Scenarios designed so far– Support via eportal for Day 1 only • Voice EP provide • Allows the CP to place a voice EP provide order • BTW will validate bandwidth ordered against the available MSIL bandwidth • CAC will be configured on SBC • Cancel Voice EP provide • CPs can cancel Voice EP provide up to Point of No Return • PONR is established as part of Voice EP provide (will be before activate) • Voice EP cease • CP can cease Voice EP • Voice EP cease order will be rejected if it is being used by Voice Route

14. Voice Route – What is it? • The Voice Route product enables CPs to configure preferred domain name and private ID that are later used for end user provisions within serving exchange • The CP has to place different service Voice Route orders for each combination of domain name + private ID + Serving exchange • Voice Route mandates CPs to specify primary and secondary voice EPs to be used • CPs need to order Voice EPs before placing orders for Voice Route

15. Integrated Voice End User Access – What is it? • IVEUA is the WBCC end user product • This is combined voice and broadband service provided on same access consumed from Openreach • Voice call control is managed by CP’s call/apps server(s) • Supports broadband service as per WBC • Involves configuration of AGCF for delivering voice media and signalling to CP

16. Raf intro WBCC - Assurance

17. WBCC Test and Diagnostics - Proposed capabilities • Delivery April 08 • MPF Copper Line Test (EMP800 Service) • Prototypes today available for trial • Linecard test – presence and function of MSAN linecard • Basic dial tone test - presence & function of dial tone, BAU routing • Jumper test - presence of jumper • Parametric line test including termination detection • Basic voice call test – using BAU routing John

18. WBCC Test and Diagnostics - Proposed capabilities • Prototypes being considered for development in Day 2 & 3 • Enhanced dial tone test - presence and function of dial tone using “Test CP” routing • Directory number test – validation of line number • Enhanced voice call test - using a “Test CP” routing • Presentation of call performance info from network • Presentation of call trace info from network • Alarm and event analysis

19. MPF Copper Line Test (EMP800) Openreach BTW EvoTAM MDF B 2 B T&D • Provides confirmation that line is good • CP/BTW initiates end-to-end test via B2B gateway

20. Line card test Openreach BTW CP Test Access Port Test Head EvoTAM CMSAN SBC SIPServer AGCF MSIL SIGprobe SIGprobe MDF Monitor signalling • Provides confirmation that linecard port is “alive” • CP/BTW initiates test • Test can be initiated from end user’s line or a dedicated test line on MSAN • Signalling records proves provide call trace information via data warehouse

21. Basic dial tone test Openreach BTW CP Test Access Port Test Head EvoTAM CMSAN AGCF SBC SIPServer MSIL SIGprobe SIGprobe MDF Monitor signalling • Provides confirmation that dial tone is available • CP/BTW initiates test • Test can be initiated from end user’s line or a dedicated test line on MSAN • Signalling records also provides call trace information via data warehouse

22. Jumper test Openreach BTW CP Test Access Port Test Head EvoTAM CMSAN AGCF SBC MSIL SIGprobe SIGprobe MDF Monitor signalling • Provides confirmation that MDF jumper is present • CP/BTW initiates test

23. Parametric line test including termination detection Openreach BTW CP Test Access Port Test Head EvoTAM CMSAN AGCF SBC MSIL SIGprobe SIGprobe MDF Monitor signalling • Provides confirmation that line and CPE are present • CP/BTW initiates test

24. Basic voice call test Openreach BTW CP BTW Test Access Port Test Head Test Head EvoTAM CMSAN AGCF SBC SIPServer Gateway Gateway 20CPOTS MSIL SIGprobe SIGprobe MDF Monitor signalling Interconnect to BT 20C POTS could be via a 3rd party network • CP/BTW initiates end-to-end test • Test can be initiated to/from end user’s line • “Other end” on selected 20C network locations initially • Signalling records also provides call trace information via data warehouse • Signalling probes provide a localised view of call quality • AGCF gives some diagnostics in call record

25. End User/Customer BTW To: Analyse fault onto orchestration system To: Analyse fault only on exception basis CP Raises all line, voice and broadband faults via b2b CP OSS CP populates XML structured questions CP Submits XML Request XML contains Test Reference ID. CP OSS Raf Interpret and validate XML Request Create Contact Report XML does not contain Test Reference ID.

26. End User/Customer BTW To: Analyse fault onto orchestration system To: Analyse fault only on exception basis CP Raises a fault via Portal/Thick Client CP enters Service ID on OneSiebel Validate CP Create Contact Report Present CP with Structured Questions Generate Fault Report Code

27. From: Analyse fault onto orchestration system From: Analyse fault onto orchestration system To: Close Fault on BTW From: Close Fault on BTW Progress Fault FAULT IS IN BTW DOMAIN Identify resources for resolution Task resources for resolution Complete tasks allocated WorkManager Allocated resources FAULT IS IN OPENREACH DOMAIN There are manual/ automated fallouts when Openreach returns request with reject codes. Raise Fault on OR via Gateway Receive resolution details Trouble Report Pending/Rejected Gateway Gateway Validate request Resolve Fault Report Fault Resolution to BTW

28. WBCC Development Project Plan – Key Milestones • Key dates in 2008 • Customer trial, pricing and interface notifications – March & April • Customer trialists selection – May • Customer Trial - Phase 1 – August • Launch notification Day 1 functionality (pricing and ts&cs) – Sep • Customer Trial - Phase 2 – October • Day 1 feature set launch – December

29. Thank you • Questions Please