INTERCONNECT WORKING GROUP 4 April 2005 Interconnect Billing Issues

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INTERCONNECT WORKING GROUP4 April 2005
Interconnect Billing Issues EBC Proposals

• COLIN ROCHESTERInterconnect Billing

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.
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Scope

• This presentation covers
• Definition of EBC charge bands for interconnect
  at NGS
• Retention of LES rate (one option under
  consideration)
• This presentation does not cover
• Charging for entitlement to LES rate (Virtual
  IECs etc.)
• Interconnect direct to 21CN

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Current EBC structure (internal)
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Frozen EBC

• At the start of the 21CN rollout, BT geographic
  number ranges will be retarded by PP (DLE) to a
  length no shorter than the national numbering
  group. This is to ensure that live ranges will
  map to a logical DLE area, even when hosted on
  21CN
• Before the 21CN rollout, the last BT-terminating
  POC-PP matrix will be frozen (stored as static
  data). The PPs will match to the frozen number
  range / PP data above.

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Frozen EBC 2

• Live BT number ranges will be used as a look-up
  into the frozen EBC matrix
• BT re-parenting is thus ignored (PSTN-PSTN or
  PSTN-21CN)
• If a new national number group is introduced then
  this and its hosting exchange will be added to
  the frozen data. If hosted on the 21CN then the
  21CN switch will be treated as a DLE, using 21CN
  / NGS connectivity to define the EBC charge

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Continued LES rate via EBC matrix

• This proposed mechanism represents current
  thinking and is subject to change
• Additional data will be held in BTs billing
  system such that for traffic delivered to (and
  received from) an NGS, depending on the traffic
  type / direction and CP concerned, charging will
  jump to a DLE POC in the EBC matrix
• This override data will be available to CPs via
  the TAMs
• CPs need only change their systems to verify BT
  bills for billing BT (INCA/CLI) this will have
  been built into the NTS EBC charging data