Consult 21 Interconnect Working Group

7 Nov 2005

Ian Self

Virtual Interconnect Capacity

Product OutlineThe information in this presentation relates to plans currently under development and subject to consultation, and may be subject to change. Detailed implementation depends upon a number of factors including the capabilities of suppliers and the final 21CN network design.

Brief Recap

• Provide continuity of LES rate through the DLE migration to 21CN

• Maintain the competitive status quo

• Pricing replicates physical products

• As simple as possible

Consultation open to allThank you to the CPs who contributed questions and proposals:

Decision Making process

1. Start with principle of current world replication

2. If unanimity on a change to current world this has been adopted

3. If no unanimity then the consensus view has been adopted providing it is consistent with point 1.

e.g: Excess circuits v.s. excess ST p.p.m.

Virtual ports v.s. port charge savings from consolidation of tandem minutes

Going Forward

• Strong demand from several CPs for early launch of VIEC product to meet expansion plans

• Product Description drafted – moving to solution design

• Further consultation on numbers in monthly minutes table

Solution Design

Consultation on monthly minutes table

Product Structure Consultation Concluded

Product Outline

The information in this presentation relates to plans currently under development and subject to consultation, and may be subject to change. Detailed implementation depends upon a number of factors including the capabilities of suppliers and the final 21CN network design.

Routing Options (CP selects one option across the board)

Both options refer to: Individual NGS

Specified set of traffic types

Little demand for third option

1. Segregated LES Route

NGSCPSwitch

TandemCallsDLE A

DLE B

DLE A

DLE B

LES rate applies to specific Route ID

NGS

2. Consolidated NGS Route

CPSwitch

CPSwitch

LES rate ignores Route ID

or

Circuit Provision (Both Options)

•CP pre-selects the capacity to each virtual destination

•Connection and rental charges the same as physical equivalents

• ISI Mux at NGS Sites, CSI Mux at customer site

• If Mux/NGS/DLE co-located then IBC charge only

•Either physical or virtual port for each E1 of virtual capacity

•No Mix of Friaco and other traffic

MUX

NGS

Tandem*DLE 1DLE 2

DLE 3

DLE 4

5 E1 Virtual Capacity

Virtual Capacity Distance

3 Physical IBCs

2 Virtual IBCs

* For consolidated NGS option only

Call Billing

• Calls to/from Virtual DLE destinations at LES rate

• Selectable by traffic type

• Specific Route ID if CP has segregated DLE partition

• Call Bill format unchanged (excess bill separate)

• Standard EBC unchanged – applies to tandem routes

• Custom EBC file applies to consolidated and segregated DLE routes

Circuit Ordering Lead times

Capacity provided in whole calendar months to align with call billing.

Lead times driven by EBC and physical provisioning processes. To be determined during solution design and likely to change from current.

Order•New•Reconfigure•Cease

EBC cut off

Physical port / circuit lead times

Circuit billing cut off

Routing plan lead times

Capacity Management•Monthly calculations – all respondents requested

•Pence per Minute Excess – only 1 CP wanted excess cct charge Excess based on ST except DT for long distance IECs and tandem capacity overflow

•Peak Erlangs per destination based on TC4 capacity - no objections

•Separate Day/Evening/Weekend minutes Protects CPs with high off peak traffic

Avoids average Day/Evening/Weekend rate for overflow

•Further analysis / consultation required on ratio of peak to average traffic this drives the number of monthly minutes per peak hour erlang

8

9

10

11

12

13

14

15

16

17

08 09 10 11 12 13 14 15 16 17

Hour

Erl

an

gs

Hourly Traffic

Peak

Average

Minutes per month Table

• Further consultation required on table values• Figures below illustrate structure and are not a

proposal or an offerDay Evening Weekend Total

Days per Month 22 22 9 31

Average Mins per day per peak hr erlang 270 216 486

Max of Erlangs Max Monthly MinutesE1 Total Day Evening Weekend Total

1 19.8 # 117,612 94,090 86,605 298,307 2 45.1 # 267,894 214,315 197,267 679,476 3 70.8 # 420,552 336,442 309,679 1,066,673 4 96.4 # 572,616 458,093 421,654 1,452,363 5 122.2 # 725,868 580,694 534,503 1,841,065 6 148.1 # 879,714 703,771 647,789 2,231,274 7 174.0 # 1,033,560 826,848 761,076 2,621,484 8 200.0 # 1,188,000 950,400 874,800 3,013,200 9 226.1 # 1,343,034 1,074,427 988,961 3,406,422

10 252.1 # 1,497,474 1,197,979 1,102,685 3,798,138

End