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

Slide 2 Introduction to WBCC Arvind

Slide 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!” “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!”

Slide 4 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 WBCC key Benefits

Slide 5 Overview of WBCC 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 Hub BRAS POSI Backhaul IP CP IPVPN Internet MSAN Hosted Video AGCF NTE MSIL Voice Interconnect CP/SP BT media signalling Key “base-band” voice Voice Call Server SBC

Slide 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 March 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 Schedule of functionality and features availability June 2009 Other Conversions eg: VLA Modify CP Migration Movers Novations & Movations Name Changes

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

Slide 8 CP Network MSAN EEA Openreach Backhaul BRAS Voice PE WBCC VPN EEA MSIL AGC Call Server Broadband path Voice signalling path Voice media path Broadband or PSTN context H.248 signalling, AGC to MSAN Ethernet pipe through which Voice (signalling & media) & Broadband service VLANS can be conveyed 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 SBC Session Border Controller. Provides limited call control functionality inc. the ability to cut CDRs and Media functionality, e.g. Codecs. Ethernet Edge Switch Dedicated Voice PE (IP) Router SIP-UNI Signalling Delivers the voice features as determined by the CP’s service Voice PE End User’s lines provided on Non-PSTN Voice VAG. Resilience scheme can be designed to offer legacy voice or broadband ‘availability’. 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 Delivers Broadband functionality BEA Network overview

Slide 9 WBCC Product structure & Provisioning Arvind

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

Slide 11 WBCC Product Family Access MSIL Consumes Connects Product & Order details SIP configuration parameters Voice configuration parameters BB Parameters Access order parameters  Product Name  Product Code  CRD  Domain name  Private ID  Dial Plan  Serving  Exchange  Registration encryption key  List of prioritise EP IVEUA Voice Route  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 Voice EP WBCC Product Model

Slide 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

Slide 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

Slide 14 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 Voice Route – What is it?

Slide 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

Slide 16 Raf intro WBCC - Assurance

Slide 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

Slide 18 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 WBCC Test and Diagnostics - Proposed capabilities

Slide 19 MPF Copper Line Test (EMP800) Provides confirmation that line is good CP/BTW initiates end-to-end test via B2B gateway BTW Openreach EvoTAM MDF T&D B2BB2B

Slide 20 Line card test 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 AGCF SBC MSIL SIP Server BTWCP Openreach CMSANEvoTAM Test Head Test Access Port MDF SIG probe Monitor signalling SIG probe

Slide 21 Basic dial tone test 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 AGCFSBC MSIL SIP Server BTWCP Openreach CMSANEvoTAM Test Head Test Access Port MDF SIG probe Monitor signalling SIG probe

Slide 22 Jumper test Provides confirmation that MDF jumper is present CP/BTW initiates test AGCFSBC MSIL BTWCP Openreach CMSANEvoTAM Test Head Test Access Port MDF SIG probe Monitor signalling SIG probe

Slide 23 Parametric line test including termination detection Provides confirmation that line and CPE are present CP/BTW initiates test AGCFSBC MSIL BTWCP Openreach CMSANEvoTAM Test Head Test Access Port MDF SIG probe Monitor signalling SIG probe

Slide 24 Openreach Basic voice call test 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 AGCF CMSANEvoTAM SBC MSIL SIP Server Gateway BTWCPBTW Gateway 20C POTS Interconnect to BT 20C POTS could be via a 3 rd party network Test Head Test Access Port Test Head MDF SIG probe Monitor signalling SIG probe

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

CP enters Service ID on OneSiebel Validate CP Create Contact Report Present CP with Structured Questions Generate Fault Report Code 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

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

Slide 28 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 WBCC Development Project Plan – Key Milestones

Slide 29 Thank you Questions Please