Issue 3.2 (1 st June 2012) Author: Zack Thompson 1 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: [email protected]
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Issue 3.2 (1 st June 2012)Author: Zack Thompson1 NCC Carrier Price List (CPL) Guidance Slides CONVEYANCE TELEPHONY These slides are provided as a ‘rough.
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Issue 3.2 (1st June 2012) Author: Zack Thompson 1
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.
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 3
CP customer
BT customer
BTCP
Part 1.01 - BT Basic TelephonyFor calls terminating on BT basic telephony services
Direction of call
Direction of payment
£ ROLO
£ retail
The distance BT carries the call within its networkdetermines the EBC-related distance that is charged.
(Local, Single Tandem, or Double Tandem)
Geographic number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 4
BT customer
CP customer
BT CP
Part 1.02 - CP Telephony (Basic)For calls terminating on CP basic telephony services
Direction of call
Direction of payment
£ 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
that CP FTRs will be equal to the BT LES rate (“the Benchmark FTR”).
Geographic number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 5
BT customer SP customer
BT CP
Part 1.02 - CP Telephony (NTS)For calls terminating on CP NTS telephony services
Direction of call
Direction of payment
£ POLO
£ retail
£ rental ofnumber range
£ servicemembership
ServiceProviderNTS is usually for services where a service
provider rents the number from the CP anduses it to provide services to retail customers.
PRS calls are usually NTS based as well.
0845, 0870, 090X number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 6
BT customer SP customer
BT CP
Part 1.02 - CP Telephony (NTS Free Phone)For calls terminating on CP NTS telephony services
Direction of call
Direction of payment
£ POLO
£ rental ofnumber range
£ servicemembership
ServiceProvider
NTS Free Phone services are similar to normal NTS services, except there is no charge to the call
originator. Therefore the payment goes in the opposite direction.
‘free to caller’
0800, 0808 number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 7
BT customer
SP customer
BT CP
Part 1.02 - CP Telephony (PNS)For calls terminating on CP PNS telephony services
Direction of call
Direction of payment
£ POLO
£ retail
£ rental ofnumber range
£ servicemembership
ServiceProvider
PNS is usually for services where calls are re-directedto a number of possible numbers, basic telephony, mobile, or
even international destinations may be allowed.
SP customer
£ servicemembership
070X number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 8
CP customer
BT CP
Part 1.02 - CP Telephony(International Incoming)For calls originating overseas
Direction of call
Direction of payment
£ POLO
£ agreed overseascharge (may be capped)
Most forms of CP Telephony covered under Part 1.02may also have international incoming access via BT (except PRS).
Charges for International Incoming services may be capped at a rate equivalent to BT’ pn1’ for those CPs who have
agreed for PNS.OverseasAdministration
Any non-PRS number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 9
CP customer
CP BT
Part 1.04 - BT International TelephonyFor calls terminating on overseas administrations
Direction of call
Direction of payment
£ ROLO
£ retail
The CP may interconnect to either a BT DMSU, or aBT ISC (which incurs a lower charge because all calls are
carried internationally via the ISC)
OverseasAdministration
BT DMSUor
BT ISC
£ agreedoverseas charge
00 International number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 10
CP customer SP customer
CP BT
Part 1.06 - BT Telephony (NTS)For calls terminating on BT NTS telephony services
Direction of call
Direction of payment
£ ROLO
£ retail
£ rental ofnumber range
£ servicemembership
ServiceProviderNTS is usually for services where a service
provider rents the number from the CP anduses it to provide services to retail customers.
PRS calls are usually NTS based as well.
0845, 0870, 090X number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 11
CP customer SP customer
CP BT
Part 1.06 - BT Telephony (NTS BT FreeFone)For calls terminating on BT NTS telephony services
Direction of call
Direction of payment
£ ROLO
£ rental ofnumber range
£ servicemembership
ServiceProvider
NTS Free Phone services are similar to normal NTS services, except there is no charge to the call
originator. Therefore the payment goes in the opposite direction.
‘free to caller’
0800, 0808 number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 12
CP customer(A Payphone AccessCharge may apply.
See Part 1.09).
BT CP
Part 1.10 - Indirect Access Calls to the CP SystemFor Indirect Access calls to the CP (usually 0800 / 0808 1XXX IA)
Direction of call
Direction of payment
£ ROLO
‘free to caller’
Indirect Access calls use the EBC method to determine the distance a call is carried within the BT network.
£ servicemembership
The subsequent type of call beyond the 1XXX digits is not considered and
could be any service allowed by the CP.This even includes calls back to a BT number
which are handled as normal calls.
0800 / 0808 1XXX IA number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 13
CP A customer
CP B customer
BT CP B
Part 1.12.1 - BT Transit Telephony to CP (Basic)For calls originating on one CP’s network and terminating on another CP’s basic telephony services
Direction of call
Direction of payment
£ POLO
£ 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 A
£ ROLO(= £ POLO+ TWIX)
BT keeps TWIX
Geographic number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 14
CP A customer
CP B customer
BT CP B
Part 1.12.1 - BT Transit Telephony to CP (03 Calls)For calls originating on one CP’s network and terminating on another CP’s 03 telephony services
Direction of call
Direction of payment
£ POLO
£ 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 A
£ ROLO(= £ POLO+ TWIX)
BT keeps TWIX
03 UK Wide number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 15
CP A customer
CP B customer
BT CP B
Part 1.12.1 - BT Transit Telephony to CP (056 LIECS)For calls originating on one CP’s network and terminating on another CP’s 056 LIECS telephony services
Direction of call
Direction of payment
£ POLO
£ 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 A
£ ROLO(= £ POLO+ TWIX)
BT keeps TWIX
056 LIECS number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 16
CP A customer
BT CP B
Part 1.12.1 - BT Transit Telephony to CP (NTS)For calls originating on one CP’s network and terminating on another CP’s NTS telephony services
Direction of call
Direction of payment
£ POLO
£ retail
The charges in Part 1.12.1 are charged to the originatingCP A, (The £ROLO in this case). Charges are based upon the
cost of the out-payment to the terminating CP B.The TWIX (cost of transiting) is charged to the
Terminating CP B.The TWIX charges are detailed in Part 1.02.2 Note 7.
CP A
£ ROLO(= £ POLO)
BT keeps TWIX
£ TWIX
SP customer
£ rental ofnumber range
£ servicemembership
ServiceProvider
0845, 0870, 090X number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 17
CP A customer
BT CP B
Part 1.12.1 - BT Transit Telephony to CP(NTS Free Phone)For calls originating on one CP’s network and terminating on another CP’s NTS telephony services
Direction of call
Direction of payment
£ POLO
‘free to caller’
Charges are the same as for NTS, but as there is no charge to the caller, the flow of money is in the other
direction.The TWIX charges are detailed in Part 1.02.2 Note 7.
CP A
£ ROLO(= £ POLO)
BT keeps TWIX
£ TWIX
SP customer
£ rental ofnumber range
£ servicemembership
ServiceProvider
0800, 0808 number ranges
Issue 3.2 (1st June 2012) Author: Zack Thompson 18
CP A customer
BT CP B
Part 1.12.1 - BT Transit Telephony to CP (PNS)For calls originating on one CP’s network and terminating on another CP’s PNS telephony services
Direction of call
Direction of payment
£ POLO
£ retail
CP A
£ ROLO(= £ POLO+ TWIX)
BT keeps TWIX
SP customer
£ rental ofnumber range
£ servicemembership
ServiceProvider
The charges in Part 1.12.1 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.
070X number ranges
SP customer
£ servicemembership
Issue 3.2 (1st June 2012) Author: Zack Thompson 19
CP customer
CP BT
Part 3.26a - BT Imported Non-GeographicNumber PortabilityFor calls to a CP ‘s number ported to BT
Direction of call
Direction of payment
£ ROLO
£ retail This situation occurs where BT has ported numbers from a CP. Calls are routed into the CP as the previous holder of the range, then the CP routes the call to BT. BT is paid the £ROLO for
an applicable service as in Part 1.06, but BT pays the CP an Additional Porting Conveyance charge (APC) for the extra work that they have carried
out in delivering the call to BT.
0845, 0870, 090X number ranges
£ APC
The final service may not be owned by BT, and may be
translated to either the same CP, or another CP.
These are treated as separate calls covered under other parts of
the Carrier Price List.
Issue 3.2 (1st June 2012) Author: Zack Thompson 20
CP customer
CP BT
Part 3.26a - BT Imported Non-GeographicNumber Portability (Free Phone)For calls to a CP’s number ported to BT
Direction of call
Direction of payment
£ ROLO
Charges are the same as for BT Imported non-Geographic Number Portability, but as there is
no charge to the caller, the flow of money is in the other direction.
0800, 0808 number ranges
£ APC
The final service may not be owned by BT, and may be
translated to either the same CP, or another CP.
These are treated as separate calls covered under other parts of
the Carrier Price List.
‘free to caller’
Issue 3.2 (1st June 2012) Author: Zack Thompson 21
BT customer
BT CP
Part 3.27 - CP Imported Non-GeographicNumber PortabilityFor calls to a BT number ported to a CP
Direction of call
Direction of payment
£ POLO
£ retailThis situation occurs where a CP has ported
numbers from BT. Calls are routed into BT as the previous holder of the range, then BT routes the call to the CP. The CP is paid the £POLO for an applicable service as in Part 1.12.1, but the CP
pays BT an Additional Porting Conveyance charge (APC) for the extra work that BT has carried out in delivering the call to the CP.
0845, 0870, 090X number ranges
£ APC
The final service may not be owned by the CP, and may be
translated to either BT, or another CP.
These are treated as separate calls covered under other parts of
the Carrier Price List.
Issue 3.2 (1st June 2012) Author: Zack Thompson 22
BT customer
BT CP
Part 3.27 - CP Imported Non-GeographicNumber Portability (BT FreeFone)For calls to a BT number ported to a CP
Direction of call
Direction of payment
£ POLO
£ APC
The final service may not be owned by the CP, and may be
translated to either BT, or another CP.
These are treated as separate calls covered under other parts of
the Carrier Price List.
0800, 0808 number ranges
‘free to caller’
Charges are the same as for CP Imported non-Geographic Number Portability, but as there is
no charge to the caller, the flow of money is in the other direction.
Issue 3.2 (1st June 2012) Author: Zack Thompson 23
CP A customer
BT
CP B
Part 3.27.6 - Non-Geographic NumberPortability TransitTransit of a CP’s number ported to another CP
Direction of call
Direction of payment
£ retail
This situation occurs where a CP has ported an NTS/PRS number to another CP and wishes BT to be used to transit the call.
BT charges the originating CP an EBC related Transit charge.CP A and CP B may agree any payment they wish, BT does
not get involved in the establishment of the CP to CP charge.
CP A
£ ROLO
The final service may not be owned by the CP, and may be
translated to either BT, or another CP.
These are treated as separate calls covered under other parts of
the Carrier Price List.
0800,0808, 0845, 0870, 090X number ranges
£ CP AGREED CHARGES
Issue 3.2 (1st June 2012) Author: Zack Thompson 24
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 withinour network when carrying a call, depending on how much switching and howfar (in some cases) we carry the call before delivery.
This method of charging is applicable for services such as BT Basic TelephonyPart 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 25
Element Based Charging (EBC)BT Terminating
BT DMSU
BT DLE
BT customer
CPSWITCH
BT DLE
BT customer
CPSWITCH
BT DMSU BT DLE
BT customer
CPSWITCH BT DMSU
Local Exchange
Single Tandem
Double Tandem
For calls originating on a CP’s network and
terminating on the BT network (Part 1.01, 1.10)
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.
Distanceelement
Issue 3.2 (1st June 2012) Author: Zack Thompson 26
Element Based Charging (EBC)CP Terminating (TRANSIT)
BT DMSU
CP B customer
CP ASWITCH
Single Tandem
Double Tandem
For calls originating on a CP’s network, transiting the BT network
and terminating on another CP’s network (Part 1.12.1)
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.
Local Exchanges cannot generally be used as transit switches and
therefore there is no Local Exchange element for transit call
types.
CP BSWITCH
BT DMSU
CP B customer
CP ASWITCH
CP BSWITCHBT DMSU
Distanceelement
Issue 3.2 (1st June 2012) Author: Zack Thompson 27
BT customer DQ 118 Service
BT CP
Charging for DQ118
BT originates calls which are terminated on CP networks
Direction of call
Direction of payment
£ POLO [accounting for BT retention]
£ retail
118XXX number ranges
Note: BT also terminates calls from CP networks to BT DQ118 services in the reverse of the above.
Issue 3.2 (1st June 2012) Author: Zack Thompson 28
CP A customer
BT CP B
Charging for DQ118
BT transits DQ118 traffic from one CP’s network to another
Direction of call
Direction of payment
£ POLO
£ retail
Note : For DQ118 number ranges BT recovers the TWIX from the terminator.