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					NCC Carrier Price List (CPL) Guidance Slides
                              CONVEYANCE TELEPHONY

These slides are provided as a ‘rough guide’ to the Parts of the CPL relating to the Conveyance Telephony
                                     services that often raise queries.


These slides are provided for general guidance only as there may be exceptions to each of the areas shown
      and therefore should not be relied upon for anything other than basic demonstration purposes.


                               Carrier Pricing E-Mail: btcs.pricing@bt.com




  Issue 3.2 (1st June 2012)               Author: Zack Thompson                                      1
                                                       INDEX

                       Slide                            Slide Subject                        CPL Part
                        01     Title                                                             -
                        02     Index                                                             -
                        03     BT Basic Telephony                                              B1.01
                        04     CP Telephony (Basic)                                            B1.02
                        05     CP Telephony (NTS)                                              B1.02
                        06     CP Telephony (NTS Free Phone)                                   B1.02
                        07     CP Telephony (PNS)                                              B1.02
                        08     CP Telephony (International Incoming)                           B1.02
                        09     BT International Telephony                                      B1.04
                        10     BT Telephony (NTS)                                              B1.06
                        11     BT Telephony (NTS BT Freefone)                                  B1.06
                        12     Indirect Access Calls to the CP System                          B1.10
                        13     BT Transit Telephony to CP (Basic)                             B1.12.1
                        14     BT Transit Telephony to CP (03 Calls)                          B1.12.1
                        15     BT Transit Telephony to CP (056 LIECS )                        B1.12.1
                        16     BT Transit Telephony to CP (NTS)                               B1.12.1
                        17     BT Transit Telephony to CP (NTS Free Phone)                    B1.12.1
                        18     BT Transit Telephony to CP (PNS)                               B1.12.1
                        19     BT Imported Non-Geographic Number Portability                  B3.26a
                        20     BT Imported Non-Geographic Number Portability (Free Phone)     B3.26a
                        21     CP Imported Non-Geographic Number Portability                   B3.27
                        22     CP Imported Non-Geographic Number Portability (BT FreeFone)     B3.27
                        23     Non-Geographic Number Portability Transit                      B3.27.6
                        24     Element Based Charging (EBC)                                      -
                        25     Element Based Charging (BT Terminating)                           -
                        26     Element Based Charging (CP Terminating)                           -
                        27     BT DQ118 services                                               B3.46
                        28     DQ118 Transit                                                  B1.12.1




Issue 3.2 (1st June 2012)                      Author: Zack Thompson                                    2
                                                                          Direction of call
Part 1.01 - BT Basic Telephony
                                                                        Direction of payment
For calls terminating on BT basic telephony services

                                      Geographic number ranges
                      CP                                                          BT




                                                £ ROLO




                    £ retail




                                The distance BT carries the call within its network
                               determines the EBC-related distance that is charged.            BT customer
CP customer                         (Local, Single Tandem, or Double Tandem)



   Issue 3.2 (1st June 2012)              Author: Zack Thompson                                              3
Part 1.02 - CP Telephony (Basic)                                          Direction of call

For calls terminating on CP basic telephony services                    Direction of payment


                                      Geographic number ranges
                         BT                                                       CP




                                                £ POLO




                    £ retail


                                 Basic Telephony is subject to Ofcom’s Statement &
                                  Final Guidance on setting Fair & Reasonable CP
                                 Fixed Termination Rates (FTRs), published on 27th
                                  April 2011. From 1st October 2012, it is expected            CP customer
 BT customer                    that CP FTRs will be equal to the BT LES rate (“the
                                                Benchmark FTR”).

   Issue 3.2 (1st June 2012)              Author: Zack Thompson                                              4
Part 1.02 - CP Telephony (NTS)                                                     Direction of call

For calls terminating on CP NTS telephony services                               Direction of payment


                           BT                   0845, 0870, 090X number ranges                CP




                                                             £ POLO


                                                                                                                      £ rental of
                                                                                                                    number range

                      £ retail

                                                                                                                        Service
                         NTS is usually for services where a service                                                   Provider
                         provider rents the number from the CP and
                        uses it to provide services to retail customers.                                £ service
                          PRS calls are usually NTS based as well.                                     membership
                                                                                  SP customer
   BT customer



   Issue 3.2 (1st June 2012)                        Author: Zack Thompson                                                      5
Part 1.02 - CP Telephony (NTS Free Phone)                                        Direction of call

For calls terminating on CP NTS telephony services                             Direction of payment


                              BT                  0800, 0808 number ranges                  CP




                                                               £ POLO


                                                                                                                    £ rental of
                                                                                                                  number range
                 ‘free to caller’

                                                                                                                      Service
                          NTS Free Phone services are similar to normal
                                                                                                                     Provider
                         NTS services, except there is no charge to the call                          £ service
                          originator. Therefore the payment goes in the                              membership
                                        opposite direction.                     SP customer
   BT customer



   Issue 3.2 (1st June 2012)                           Author: Zack Thompson                                                 6
Part 1.02 - CP Telephony (PNS)                                                    Direction of call

For calls terminating on CP PNS telephony services                              Direction of payment

                          BT                        070X number ranges
                                                                                            CP




                                                         £ POLO


                                                                                                                £ rental of
                                                                                                              number range
                                                                            £ service
                     £ retail
                                                                           membership
                                                                                                                    Service
                                                          SP customer                                              Provider
                                                                                                       £ service
                                                                                                      membership
  BT customer        PNS is usually for services where calls are re-directed
                 to a number of possible numbers, basic telephony, mobile, or
                        even international destinations may be allowed.             SP customer


   Issue 3.2 (1st June 2012)                       Author: Zack Thompson                                                  7
Part 1.02 - CP Telephony                                                          Direction of call

(International Incoming)                                                       Direction of payment
For calls originating overseas
                                              Any non-PRS number ranges
                         BT                                                               CP




                                                        £ POLO




                    £ agreed overseas
                    charge (may be capped)

                                      Most forms of CP Telephony covered under Part 1.02
                               may also have international incoming access via BT (except PRS).
                         Charges for International Incoming services may be capped at a rate equivalent
                                                                                                          CP customer
                                               to BT’ pn1’ for those CPs who have
  Overseas                                              agreed for PNS.
Administration
   Issue 3.2 (1st June 2012)                      Author: Zack Thompson                                                 8
Part 1.04 - BT International Telephony                                              Direction of call

For calls terminating on overseas administrations                                Direction of payment


                                               00 International number ranges
                         CP                                                                  BT




                                                                                           BT DMSU
                                                                                              or
                                                                                            BT ISC

                                                         £ ROLO




                                                                                         £ agreed
                    £ retail
                                                                                      overseas charge


                                 The CP may interconnect to either a BT DMSU, or a
                               BT ISC (which incurs a lower charge because all calls are
                                         carried internationally via the ISC)
CP customer                                                                                               Overseas
                                                                                                        Administration
   Issue 3.2 (1st June 2012)                       Author: Zack Thompson                                             9
Part 1.06 - BT Telephony (NTS)                                                     Direction of call

For calls terminating on BT NTS telephony services                               Direction of payment


                           CP                   0845, 0870, 090X number ranges                BT




                                                            £ ROLO


                                                                                                                      £ rental of
                                                                                                                    number range

                      £ retail

                                                                                                                        Service
                         NTS is usually for services where a service                                                   Provider
                         provider rents the number from the CP and
                        uses it to provide services to retail customers.                                £ service
                          PRS calls are usually NTS based as well.                                     membership
                                                                                   SP customer
   CP customer



   Issue 3.2 (1st June 2012)                        Author: Zack Thompson                                                     10
Part 1.06 - BT Telephony (NTS BT FreeFone)                                       Direction of call

For calls terminating on BT NTS telephony services                             Direction of payment


                              CP                  0800, 0808 number ranges                  BT




                                                               £ ROLO


                                                                                                                    £ rental of
                                                                                                                  number range
                 ‘free to caller’

                                                                                                                      Service
                          NTS Free Phone services are similar to normal
                                                                                                                     Provider
                         NTS services, except there is no charge to the call                          £ service
                          originator. Therefore the payment goes in the                              membership
                                        opposite direction.                      SP customer
   CP customer



   Issue 3.2 (1st June 2012)                           Author: Zack Thompson                                                11
Part 1.10 - Indirect Access Calls to the CP System                                       Direction of call

For Indirect Access calls to the CP (usually 0800 / 0808                               Direction of payment
1XXX IA)
                                                    0800 / 0808 1XXX IA number ranges
                            BT                                                                   CP




                                                              £ ROLO




                                                                        The subsequent type of call beyond the 1XXX digits is not considered
                                                   £ service                                            and
                ‘free to caller’
                                                  membership                         could be any service allowed by the CP.
                                                                                  This even includes calls back to a BT number
                                                                                        which are handled as normal calls.

    CP customer
(A Payphone Access                 Indirect Access calls use the EBC method to determine the distance a call is
 Charge may apply.                                        carried within the BT network.
   See Part 1.09).

    Issue 3.2 (1st June 2012)                           Author: Zack Thompson                                                    12
Part 1.12.1 - BT Transit Telephony to CP (Basic)                                     Direction of call

For calls originating on one CP’s network and                                     Direction of payment
terminating on another CP’s basic telephony services
                                                                         Geographic number ranges
           CP A                                             BT
                                                                                                             CP B




                                                          BT keeps
                                    £ ROLO                                          £ POLO
                                                           TWIX
                                   (= £ POLO
                                    + TWIX)




                 £ retail

                                The charges in Part 1.12 are charged to the originating CP A ,
                       (The £ROLO in this case). Charges are based upon the cost of the out-payment to the
                                         Terminating CP B+TWIX (cost of transiting).
                                     The TWIX charges are detailed in Part 1.02.2 Note 7.                     CP B customer
 CP A customer


   Issue 3.2 (1st June 2012)                         Author: Zack Thompson                                                13
Part 1.12.1 - BT Transit Telephony to CP (03 Calls)                                  Direction of call

For calls originating on one CP’s network and                                     Direction of payment
terminating on another CP’s 03 telephony services
                                                                         03 UK Wide number ranges
           CP A                                             BT
                                                                                                             CP B




                                                          BT keeps
                                    £ ROLO                                          £ POLO
                                                           TWIX
                                   (= £ POLO
                                    + TWIX)




                 £ retail

                                The charges in Part 1.12 are charged to the originating CP A ,
                       (The £ROLO in this case). Charges are based upon the cost of the out-payment to the
                                         Terminating CP B+TWIX (cost of transiting).
                                     The TWIX charges are detailed in Part 1.02.2 Note 7.                     CP B customer
 CP A customer


   Issue 3.2 (1st June 2012)                         Author: Zack Thompson                                                14
Part 1.12.1 - BT Transit Telephony to CP (056 LIECS)                                 Direction of call

For calls originating on one CP’s network and                                     Direction of payment
terminating on another CP’s 056 LIECS telephony services
                                                                         056 LIECS number ranges
           CP A                                             BT
                                                                                                             CP B




                                                          BT keeps
                                    £ ROLO                                          £ POLO
                                                           TWIX
                                   (= £ POLO
                                    + TWIX)




                 £ retail

                                The charges in Part 1.12 are charged to the originating CP A ,
                       (The £ROLO in this case). Charges are based upon the cost of the out-payment to the
                                         Terminating CP B+TWIX (cost of transiting).
                                     The TWIX charges are detailed in Part 1.02.2 Note 7.                     CP B customer
 CP A customer


   Issue 3.2 (1st June 2012)                         Author: Zack Thompson                                                15
Part 1.12.1 - BT Transit Telephony to CP (NTS)                                       Direction of call

For calls originating on one CP’s network and                                    Direction of payment
terminating on another CP’s NTS telephony services
                                                                    0845, 0870, 090X number ranges
           CP A                                            BT
                                                                                                          CP B




                                                                                     £ POLO
                                                         BT keeps
                                     £ ROLO
                                                          TWIX
                                   (= £ POLO)
                                                                                     £ TWIX


                                                                                                                        £ rental of
                                                                                                                      number range
                 £ retail
                                                                                                                         Service
                         The charges in Part 1.12.1 are charged to the originating
                        CP A, (The £ROLO in this case). Charges are based upon the                                      Provider
                              cost of the out-payment to the terminating CP B.
                                                                                                          £ service
                               The TWIX (cost of transiting) is charged to the
                                                                                                         membership
 CP A customer                                Terminating CP B.                          SP customer
                           The TWIX charges are detailed in Part 1.02.2 Note 7.

   Issue 3.2 (1st June 2012)                        Author: Zack Thompson                                                 16
Part 1.12.1 - BT Transit Telephony to CP                                                Direction of call
(NTS Free Phone)                                                                      Direction of payment
For calls originating on one CP’s network and
terminating on another CP’s NTS telephony services
                                                                             0800, 0808 number ranges
           CP A                                               BT
                                                                                                              CP B




                                                                                       £ POLO
                                                            BT keeps
                                      £ ROLO
                                                             TWIX
                                    (= £ POLO)
                                                                                       £ TWIX


                                                                                                                            £ rental of
                                                                                                                          number range
         ‘free to caller’
                                                                                                                             Service
                                                                                                                            Provider
                             Charges are the same as for NTS, but as there is no
                            charge to the caller, the flow of money is in the other                           £ service
                                                   direction.                                                membership
 CP A customer                                                                              SP customer
                            The TWIX charges are detailed in Part 1.02.2 Note 7.


   Issue 3.2 (1st June 2012)                           Author: Zack Thompson                                                  17
Part 1.12.1 - BT Transit Telephony to CP (PNS)                                         Direction of call

For calls originating on one CP’s network and                                      Direction of payment
terminating on another CP’s PNS telephony services

                                                                            070X number ranges
           CP A                                              BT
                                                                                                                CP B




                                                                                       £ POLO
                                                          BT keeps
                                     £ ROLO
                                                           TWIX
                                    (= £ POLO
                                     + TWIX)


                                                                                                                           £ rental of
                                                                                              £ service
                                                                                                                         number range
                                                                                           membership
                 £ retail                                                         SP customer
                                                                                                                            Service
                        The charges in Part 1.12.1 are charged to the originating CP
                         A , (The £ROLO in this case). Charges are based upon the                                          Provider
                        cost of the out-payment to the terminating CP B+TWIX (cost                           £ service
                                               of transiting).                                              membership
 CP A customer              The TWIX charges are detailed in Part 1.02.2 Note 7.
                                                                                                  SP customer

   Issue 3.2 (1st June 2012)                         Author: Zack Thompson                                                   18
Part 3.26a - BT Imported Non-Geographic                                          Direction of call

Number Portability                                                             Direction of payment
For calls to a CP ‘s number ported to BT
                           CP                                                               BT
                                          0845, 0870, 090X number ranges




                                                        £ ROLO


                                                         £ APC




                      £ retail       This situation occurs where BT has ported
                                 numbers from a CP. Calls are routed into the CP                The final service may not be
                                  as the previous holder of the range, then the CP               owned by BT, and may be
                                  routes the call to BT. BT is paid the £ROLO for             translated to either the same CP,
                                 an applicable service as in Part 1.06, but BT pays                     or another CP.
                                 the CP an Additional Porting Conveyance charge                 These are treated as separate
                                  (APC) for the extra work that they have carried            calls covered under other parts of
   CP customer                             out in delivering the call to BT.                        the Carrier Price List.



   Issue 3.2 (1st June 2012)                    Author: Zack Thompson                                                      19
Part 3.26a - BT Imported Non-Geographic                                             Direction of call

Number Portability (Free Phone)                                                  Direction of payment
For calls to a CP’s number ported to BT
                               CP                                                              BT
                                              0800, 0808 number ranges




                                                           £ ROLO


                                                            £ APC




            ‘free to caller’
                                                                                                   The final service may not be
                                                                                                    owned by BT, and may be
                                                                                                 translated to either the same CP,
                                                                                                           or another CP.
                                     Charges are the same as for BT Imported non-                  These are treated as separate
                                    Geographic Number Portability, but as there is no           calls covered under other parts of
   CP customer                       charge to the caller, the flow of money is in the                 the Carrier Price List.
                                                     other direction.


   Issue 3.2 (1st June 2012)                       Author: Zack Thompson                                                      20
Part 3.27 - CP Imported Non-Geographic                                          Direction of call

Number Portability                                                           Direction of payment
For calls to a BT number ported to a CP
                           BT               0845, 0870, 090X number ranges
                                                                                           CP




                                                       £ POLO


                                                        £ APC




                      £ retail
                                    This situation occurs where a CP has ported                The final service may not be
                                 numbers from BT. Calls are routed into BT as the             owned by the CP, and may be
                                  previous holder of the range, then BT routes the              translated to either BT, or
                                  call to the CP. The CP is paid the £POLO for an                       another CP.
                                   applicable service as in Part 1.12.1, but the CP           These are treated as separate
                                     pays BT an Additional Porting Conveyance               calls covered under other parts of
   BT customer                      charge (APC) for the extra work that BT has                    the Carrier Price List.
                                     carried out in delivering the call to the CP.


   Issue 3.2 (1st June 2012)                   Author: Zack Thompson                                                      21
Part 3.27 - CP Imported Non-Geographic                                              Direction of call

Number Portability (BT FreeFone)                                                 Direction of payment
For calls to a BT number ported to a CP
                               BT                                                              CP
                                                0800, 0808 number ranges




                                                           £ POLO


                                                            £ APC




            ‘free to caller’
                                                                                                   The final service may not be
                                                                                                  owned by the CP, and may be
                                                                                                    translated to either BT, or
                                                                                                            another CP.
                                     Charges are the same as for CP Imported non-                 These are treated as separate
                                    Geographic Number Portability, but as there is no           calls covered under other parts of
   BT customer                       charge to the caller, the flow of money is in the                 the Carrier Price List.
                                                     other direction.


   Issue 3.2 (1st June 2012)                       Author: Zack Thompson                                                      22
Part 3.27.6 - Non-Geographic Number                                                 Direction of call

Portability Transit                                                              Direction of payment
Transit of a CP’s number ported to another CP
                                                    0800,0808, 0845, 0870, 090X number ranges

           CP A                                                                                              CP B
                                                           £ CP AGREED
                                                             CHARGES


                                                            BT




                               £ ROLO




                 £ retail
                                                                                                       The final service may not be
                                                                                                      owned by the CP, and may be
                               This situation occurs where a CP has ported an NTS/PRS                   translated to either BT, or
                            number to another CP and wishes BT to be used to transit the call.                  another CP.
                              BT charges the originating CP an EBC related Transit charge.            These are treated as separate
 CP A customer                 CP A and CP B may agree any payment they wish, BT does               calls covered under other parts of
                              not get involved in the establishment of the CP to CP charge.                the Carrier Price List.

   Issue 3.2 (1st June 2012)                       Author: Zack Thompson                                                      23
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, and BT Transit to CP Telephony Part 1.12.

        As part of BT’s Least Cost Routing ‘Pricing Promise’, the actual route of each call
        is not considered, but the ‘shortest path’ method is used. Using this method, all possible
        call routes are considered (even backup circuits and private links) when evaluating
        the ‘shortest path’, so that a CP is never over-charged for a call by this method,
        even when those circuits will never be used for those types of telephony.
        The customer is always charged based upon the theoretical least cost (shortest) route !

        The EBC bands are described in the following slides...



   Issue 3.2 (1st June 2012)              Author: Zack Thompson                                      24
Element Based Charging (EBC)
BT Terminating

   For calls originating on a            Local Exchange
      CP’s network and
    terminating on the BT                                 CP
   network (Part 1.01, 1.10)                            SWITCH          BT DLE

                                                                                       BT customer
                     Single Tandem


                                  CP
                                SWITCH                  BT DMSU         BT DLE

                                                                                       BT customer
Double Tandem

                                             Distance
             CP                              element
           SWITCH                BT DMSU                BT DMSU         BT DLE

                                                                                       BT customer

For Double Tandem calls there is an additional distance element (short <100km, medium 100-200km,
 long >200km). The distance between all DMSUs (there may be more than two) is considered for this
                                         distance element.
   Issue 3.2 (1st June 2012)               Author: Zack Thompson                             25
 Element Based Charging (EBC)
 CP Terminating (TRANSIT)
                                                             Local Exchanges cannot generally
    For calls originating on a CP’s                           be used as transit switches and
  network, transiting the BT network                            therefore there is no Local
   and terminating on another CP’s                           Exchange element for transit call
         network (Part 1.12.1)                                             types.

                    Single Tandem


                                  CP A                                         CP B
                                 SWITCH                   BT DMSU             SWITCH

                                                                                                 CP B customer
Double Tandem
                                               Distance
                                               element                         CP B
             CP A                   BT DMSU                BT DMSU            SWITCH
            SWITCH
                                                                                                 CP B customer

 For Double Tandem calls there is an additional distance element (short <100km, medium 100-200km,
long >200km). The distance between all DMSUs (as there may be more than two) is considered for this
                                          distance element.
     Issue 3.2 (1st June 2012)                Author: Zack Thompson                                     26
Charging for DQ118                                                   Direction of call

                                                                   Direction of payment
BT originates calls which are terminated on CP networks

                         BT            118XXX number ranges                   CP




                                     £ POLO [accounting for BT retention]




                   £ retail




                      Note: BT also terminates calls from
                      CP networks to BT DQ118 services
BT customer           in the reverse of the above.             DQ 118 Service

 Issue 3.2 (1st June 2012)                Author: Zack Thompson                           27
  Charging for DQ118                                                   Direction of call

                                                                     Direction of payment
  BT transits DQ118 traffic from one CP’s network to another

                                                       118XXX number ranges
         CP A                                   BT
                                                                                            CP B




                                                                      £ POLO
                                  £ ROLO        BT
                                (= £ POLO)     keeps
                                               TWIX                   £ TWIX




            £ retail

                         Note : For DQ118 number ranges BT
                       recovers the TWIX from the terminator.

CP A customer                                                        DQ 118 Service
    Issue 3.2 (1st June 2012)                Author: Zack Thompson                                 28

				
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