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Element Based Charging (EBC) used within both BT Basic and BT Transit Telephony

Element Based Charging (EBC) used within both BT Basic and BT Transit Telephony. Element Based Charging uses switch related elements for charging. This allows BT to recover costs based upon the amount of ‘work’ done within

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Element Based Charging (EBC) used within both BT Basic and BT Transit Telephony

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  1. Element Based Charging (EBC) used within both BT Basic and BT Transit Telephony Element Based Charging uses switch related elements for charging. This allows BT to recover costs based upon the amount of ‘work’ done within our network when carrying a call, depending on how much switching and how far (in some cases) we carry the call before delivery. This method of charging is applicable for services such as BT Basic Telephony Part 1.01, BT Indirect Access (Part 1.10) and BT Transit to CP Telephony Part 1.12. As part of BT’s Least Cost Routing methodology, the actual route of each call is not considered, but the ‘shortest path’ is used. Further, for BT Transit and BT originating traffic the exit PoC used for charging is not the actual exit PoC but the exit PoC derived from the routing plans. Using this method, all possible call routes are considered when evaluating the ‘shortest path’, so that an operator is never over-charged for a call. The customer is always charged based upon the theoretical least cost (shortest) route ! The EBC bands are described in the following slides...

  2. Element Based Charging (EBC) BT Terminating For calls originating on a CP network and terminating on the BT network (Part 1.01) Local Exchange CP SWITCH BT DLE BT customer Single Tandem CP SWITCH BT DMSU BT DLE BT customer Double Tandem Distance element CP SWITCH BT DMSU BT DMSU BT DLE BT customer For Double Tandem calls there is an additional distance element (short <100km (527), medium 100-200km (528), long >200km (529)). The distance between all DMSUs (there may be more than two) is considered for this distance element.

  3. Element Based Charging (EBC) CP Terminating (TRANSIT) Local Exchanges cannot be used as transit switches and therefore there is no Local Exchange element for transit call types. For calls originating on a CP network, transiting the BT network and terminating on another CP network (Part 1.12) Single Tandem CP A SWITCH CP B SWITCH BT DMSU CP B customer Double Tandem Distance element CP B SWITCH CP A SWITCH BT DMSU BT DMSU CP B customer For Double Tandem calls there is an additional distance element (short <100km (527), medium 100-200km (528), long >200km (529)). The distance between all DMSUs (as there may be more than two) is considered for this distance element.

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