Transcript Next Generation Communications – BT’s 21CN & 21TC Social

BT’s 21CN Compatibility testing &
engagement programme. November
2008.
Mike Piggott
&
Paul ffitch
Caution advised. Some of the
information in this presentation
relates to plans subject to
consultation and therefore
change.
Agenda:•
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21CN Programme update
CPE Implications
Testing & result publication
Manufacturer/Industry Association
engagement
Internal/external operational
readiness monitoring
End user comms
Industry comms
Test failure spreadsheet
•
Critical CPE special
treatments
– Line reversion process
– Grooming process
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•
CPE diagnostic process
Escalation route for utilities &
environment agency
Pro-active external trials
PF+ learning objectives
RFI process [email protected]
21CN – the programme has evolved
• Continual customer feedback helps to inform and enhance the
programme
• Now prioritising the delivery of next generation services ahead
of replicating old services
• Introducing windows for voluntary upgrades to new services
before planned migration
• The scope of 21CN has also been expanded, to include:
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The introduction of software-driven innovation capabilities
More detailed components for enterprise customers
New technology to improve mobile access
Consistency between 21CN and NGA
21CN – Objective remains unchanged
Legacy network
21CN platform
PSTN Migration
Converged Core
Class 5
Call Server
Fibre or
Copper
WWW
DSL
IP-MPLS-WDM
Content
End
User
~5k
nodes
17 networks to ONE global platform
~100
nodes
ISP
Advantages of 21CN
• Reliability
PSTN Migration
Converged Core
• Performance
Class 5
Call Server
Fibre or
Copper
• Cost
WWW
DSL
IP-MPLS-WDM
• Resilience
Content
• Features
• Faster new service delivery
• Software innovation
End
User
~5k
nodes
~100
nodes
ISP
21CN - key milestone overview
Trials +
Migration+
Innovation
Pathfinder
(Phase I)
Phase II
Customer Trials
National Service Migration
Innovation Capability
ISDN on 21CN
ISDN
WLR
Basic Voice on 21CN (WLR)
Next Gen
Voice
Next Generation Voice (WBCC )
WBC /
WBMC
Next Generation Broadband (WBC / WBMC)
Ethernet launch and subsequent releases
TDM services launched on 21CN from 2009
Ethernet
FY 2008/09
FY 2009/10
FY 2010/11
FY 2011/12/13
Services on 21CN vs. legacy
PSTN:
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New PSTN line cards in new MSAN edge equipment.
IP packet based transport of voice data (legacy PSTN uses switched circuit transport).
ISDN:
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New ISDN line cards in new MSAN edge equipment.
IP packet based transport of voice data (legacy PSTN uses switched circuit transport).
Broadband:
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New ADSL/ADSL2+ line cards in new MSAN edge equipment.
Same IP packet based transport as existing broadband.
Some of these changes cause certain characteristics to differ from those on the existing
network.
CPE related 21CN differences
PSTN
• loop current: maximum off-hook loop current reducing.
• ringing implementation moving to balanced ringing.
PSTN and ISDN
• echo cancellation used unless fast modems are detected.
• audio path discontinuities when jitter buffers adapt.
• end to end delay increasing.
Broadband
•
No fundamental changes expected.
Objectives of CPE compatibility testing
• To help identify CPE compatibility related issues so that appropriate
solutions can be communicated to all relevant stakeholders.
• To help manufacturers and other stakeholders ensure that CPE
functions properly on 21CN.
• To help ensure that CPE compatibility related issues are
constrained to an acceptable level.
• Feedback into the 21CN design, if and when compatibility issues
are found.
Testing environments
• £150M investment in testing capability.
• Main CPE testing sites at Adastral Park and Swansea.
– BT’s CPE testing team Adastral based; isolated model;
experimental build capability; second line diagnostics &
investigation focused.
– Swansea 8 testing bays & breakout; part of live 21CN network;
supports more independent testing; supports high volume
testing.
• Both sites open to CPs, manufacturers, industry
associations where testing is deemed relevant.
• Results are published.
PSTN Test Result commentary
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Testing to date has confirmed that where equipment complies with the full
range of specifications and guidelines in the UK Transmission Plan and BT
Supplier Information Notes (both in the public domain), it is compatible with
21CN.
The vast majority of kit works on 21CN.
Some issues have been identified with equipment and data signalling
protocols used by some telecare and security devices that do not fully
conform to these published specifications.
The root cause of failure for these is that the signalling protocol and
equipment combinations do not communicate successfully at levels of E2E
network delay below the guideline maximums specified in the UK
Transmission Plan (NICC document ND1701).
Such devices are vulnerable to E2E delays already encountered under
existing network conditions.
With exception of Monarch, only other issue is with echo cancellers
affecting some telemetry & ATMs. Network fix being pursued with vendors.
ISDN/ADSL Testing progress
• ISDN testing has just begun with digital PBXs on
ISDN30e. 5 PBX’s thus far have been tested
with positive results.
• ISDN testing will accelerate next calendar year
with service availability at Swansea.
• ADSL representative sample testing is complete
with no issues found.
http://21cntestingdb.bt.com/
Results key
Key:
Pass
Pass 1 (User
perception affected)
Eg. Altered ringing cadence
Pass 2 (User operation
affected)
Eg. Switch to tone dialling
Partial Fail (Some
functionality lost or
delay sensitive)
Eg. Works in test, but fails at delays < 300ms
Fail (Service lost)
www.switchedonuk.org
Engagement model
Reporting back into Consult21.
Publication of test results.
CPE related policies & processes.
Incompatibility resolution.
Test partner kept abreast of public domain updates.
CPE RFI response.
Risk mitigation.
Etc etc ….
CPE Engagement
Team.
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Need to test
identified & CPE
Engagement team
target “best test
partner” & engage.
CP’s
BSIA – British Security Industry Association (Security systems)
ENA – Energy Networks Association (Gas & Electricity)
WITS – Water Industry Telemetry Standards (Water Industry)
Environment Agency
Link Network (ATMs)
Home Office – specifically custodial services (Tagging devices)
APACS – UK Payments Association (EPOS/EFTPOS)
Payphones
CAA/NATS – Civil Aviation Authority & National Air Traffic Services
Trinity House – lighthouses, coastguard
Network Rail (Railside emergency phones, signalling etc)
Lifts & Emergency Phones
Fire Industry Association
TSA – Telecare Services Association (Social & Telecare for the
vulnerable)
Test Plan &
Schedule agreed.
Testing facilitated
& executed at
Adastral/Swansea.
Test partner
engaged and
educated on 21CN
& CPE.
Communications
End user
Switched-on doordrop, switched-on website, via industry associations, via
secondary engagements, external deck (POAP & Strategy), PF1 &
Grooming deck…..
Industry
Via Consult21, Call Centre Q&As, “How to deal with CPE queries”,
Backgrounder documents, BT Group Policy, C21–IM-022 “Managing CPE
Compatibility”, Utilities Briefing & Escalation Route
Test Failure Spreadsheet
(Test D/B drop down menu CPE/Documentation/Test
Reviews)
Type CPE Family
Firmware
(Where
Supplier
Product
Receiving
21CN Test Result Root Cause Sample No. Centre
Protocol
(Where
Notes
Reason:
This item marked as a FAIL because it does not respond to the type of
ringing signal used on 21CN lines. (21CN uses balanced ringing, while
legacy PSTN normally uses unbalanced ringing.)
Impact:
This type of PBX should not be migrated to 21CN, as incoming calls are
not detected, and so incoming service is effectively lost. Outgoing calls are
unaffected.
Medium and Large
PSTN Analogue PBX
n/a
BT
Monarch 32 port
Fail
Balanced
Ringing
2078 n/a
n/a
Remedy:
End users should contact their Communications Provider to get this type of
PBX upgraded or replaced.
Reason:
This item marked as a FAIL because it does not respond to the type of
ringing signal used on 21CN lines. (21CN uses balanced ringing, while
legacy PSTN normally uses unbalanced ringing.)
Impact:
This type of PBX should not be migrated to 21CN, as incoming calls are
not detected, and so incoming service is effectively lost. Outgoing calls are
unaffected.
Medium and Large
PSTN Analogue PBX
n/a
BT
Monarch 96 port
Fail
Balanced
Ringing
2079 n/a
n/a
Remedy:
Critical CPE special treatments
• How can you find out what’s on the list?
• In the Customer Impact Matrix
• How did we define what is Critical CPE?
• By consulting with you – its now under change control within the Customer
• Impact Matrix
• List of Critical CPE devices:
• Telecare devices
• Telemetry devices
• Security devices
• ATM machines
• EPOS/EFTPOS/PDQ equipment
• Public payphones
• Textphones
• Digital & analogue PBXs
• Emergency phones
• Custodial tagging devices
Line Regression Process
High Level Interaction Diagram
CPs Fault
Diagnosis
Process
Manage Migration
Faults
(21C IN-Life Ops)
CP
MCC
OR
CPE Team
BT Operate
Manage PSTN
Faults
(Openreach)
Line Regression
Approval Process
(MCC Stability)
Perform
Root Cause Analysis
(21C CPE Team)
Line Regression
Implementation
Process
(21C In-Life & OR)
Close Fault
&
Handover to
20C BAU Teams
Line Re-Migration
Scheduling &
Implementation
(BTO & OR)
Grooming process
CP
PEW
Notification
Alarms
Telemetry
Care
Industry
Advised
CCPE
Grooming
Window
Closed
CCPE
Grooming
Schedule
Created. CPs
Identified
Industry
Advise
CCPE
Services
for
Grooming
CPs Advised
of CCPE
Services
regressed
CPs Advised
of CCPE
Services to
be Groomed
CCPE Services
Grooming
Master
Record of
Groomed &
Regressed
Services
Updated
CCPE
Further CCPE Services advised
CCPE PEW
Raised
CCPE Regression Services PreJumpering
Schedule
(possible
Created. CPs
further
Identified
grooming
pass)
Further CCPE Services advised
CCPE Regression
Schedule
Updated. CPs
Identified
CCPE
Services
Regression
Blanket PEW Period
11w
9w
8w
7w
1w
Migration Timeline
KEY:
CCPE – Critical Customer Premise Equipment
M – Point of Migration
Comms
4w
Groom
Regress
Industry
M
M+
nn Hrs
CP
CPE diagnostic process
Analyse
CPE Related
Problem
2
CPE
Diagnostic
Team
21C CPE Team
3
BT
Operate
Is Fault Related to
Incompatible CPE
Confirmed?
K
C
I
OR
CPE Team
BT Operate
‘21CN In-Life Operations team’ can be contacted on 0800 811 343 at
any point of time either for updates or for escalating in case of issues.
Recommend
Suitable CPE
Problem Fix
(If Applicable)
21C CPE Team
Perform
Logical Line
Regression
Perform
Post Regression
Testing
21C In-Life Team
21C In-Life Team
Perform
Physical
Jumpering
Openreach
MCC
OR Field Engineers
K
C
I
Update
Necessary OSS
Systems
Close
Fault & Inform
Openreach
21C In-Life Team
21C In-Life Team
For Utilities & Environment Agency
•“Batphone” facility for critical public infrastructure providers
Gas, water, electricity, environment agency
http://www.btwholesale.com/pages/downloads/21_Century_Network_
Community/Supporting_Information_For_Utilities_v3.doc
Agenda:•
•
•
•
•
•
•
•
21CN Programme update
CPE Implications
Testing & result publication
Manufacturer/Industry Association
engagement
Internal/external operational
readiness monitoring
End user comms
Industry comms
Test failure spreadsheet
•
Critical CPE special
treatments
– Line reversion process
– Grooming process
•
•
CPE diagnostic process
Escalation route for utilities &
environment agency
• Pro-active external trials
•
•
PF+ learning objectives
RFI process [email protected]
Agenda:•
•
•
•
•
•
•
•
21CN Programme update
CPE Implications
Testing & result publication
Manufacturer/Industry Association
engagement
Internal/external operational
readiness monitoring
End user comms
Industry comms
Test failure spreadsheet
•
Critical CPE special
treatments
– Line reversion process
– Grooming process
•
•
•
CPE diagnostic process
Escalation route for utilities &
environment agency
Pro-active external trials
• PF+ learning objectives
•
RFI process [email protected]
Agenda:•
•
•
•
•
•
•
•
21CN Programme update
CPE Implications
Testing & result publication
Manufacturer/Industry Association
engagement
Internal/external operational
readiness monitoring
End user comms
Industry comms
Test failure spreadsheet
•
Critical CPE special
treatments
– Line reversion process
– Grooming process
•
•
•
•
CPE diagnostic process
Escalation route for utilities &
environment agency
Pro-active external trials
PF+ learning objectives
• RFI process
[email protected]
Summary
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Significant investment in CPE testing.
Vast majority of CPE compatible.
Testing underpinned by external consultation.
Test results available.
Compatibility issues being managed.
Mitigations in place to protect customer
experience.
Useful information & how to get engaged
•More information?
then contact [email protected]
•Or visit these sites
•The CPE testing database:
http://21cntestingdb.bt.com
•The Consult21 website:
www.btwholesale.com/consult21
•The independent public information
website covering the process of migration:
http://www.switchedonuk.org
•For general information about BT’s 21CN
programme go to: http://www.btplc.com/21CN/
Questions

Answers