OFTEL


ANNEX B


Comparison of average and peak rates with BT's charges
All charges shown in pence per minute
Using purchasing power parity exchange rates for 1996

Services similar to:-
---------------------
     Local      
% difference compared to BT termination/origination
---------------------------------------------------
          Local
Average charges date of
charges 		exchange
segment 		Single
tandem 		Double
tandem 		exchange
segment 		Single
tandem 		Double
tandem 		PPP (1996)
exchange rates
BT
BT
Tele Danmark
DTAG
Telia
KPN
Telenor
FT
Telefonica
Belgacom
Belgacom
TI
KPN
 UK
UK
Denmark
Germany
Sweden
Netherlands
Norway
France
Spain
Belgium
Belgium
Italy
Netherlands
 1997/10/1
1997/10/1
1997
1998-9
1997
1997
Jun-97
1998
1997
1998
1998
1998
1997
 termination
origination



termination



termination
origination

origination
 0.33
0.37
0.45
0.53
0.77
n/a
0.91
0.60
n/a
0.79
1.00
0.96
n/a
 0.47
0.51
0.85
0.88
0.97
1.16
1.19
1.25
1.30
1.35
1.56
1.57
2.29
 0.76
0.80
1.02
1.22
1.33
1.45
1.62
1.71
2.46
1.85
n/a
n/a
2.67

38%
60%
133%
n/a
176%
82%
n/a
140%
170%
193%
n/a

82%
89%
107%
148%
155%
167%
177%
189%
206%
236%
349%

35%
61%
75%
91%
113%
126%
225%
145%
n/a
n/a
233%

12.86
3.05
14.78
3.08
14.14
9.82
1.89
55.80
55.80
2412.20
3.08
NTT Japan 1997 0.81
0.97
 1.68
2.02
 n/a
n/a
 145% 260% n/a 255.95
213.00
Spot exchange rate @ 19 November 1997
Note: Charges for termination and origination are the same unless otherwise specified
KPN's charges for origination include access deficit charge
Telia's charges include cost of interconnection circuit
BT's double tandem charge is a simple average of the charges for the three distance bands
DT's double tandem charge is a simple average of the charges for Regio 200 and Fernzone
Telefonica's double tandem charge is a simple average of the charges for Provincial and Interprovincial
Rental of access to access points has been added to Belgacom pence per minute charges
 



Services similar to:-
---------------------
     Local      
% difference compared to BT termination/origination
---------------------------------------------------
          Local
Average charges date of
charges 		exchange
segment 		Single
tandem 		Double
tandem 		exchange
segment 		Single
tandem 		Double
tandem 		PPP (1996)
exchange rates
BT
BT
Tele Danmark
DTAG
Telia
KPN
Telenor
FT
Telefonica
Belgacom
Belgacom
TI
KPN
 UK
UK
Denmark
Germany
Sweden
Netherlands
Norway
France
Spain
Belgium
Belgium
Italy
Netherlands
termination
origination



termination



termination
origination

origination
 0.43
0.49
0.57
0.65
0.97
n/a
1.08
0.67
n/a
0.96
1.22
1.23
n/a
 0.62
0.68
1.06
1.10
1.24
1.44
1.37
1.43
1.32
1.66
1.93
2.01
2.85
 1.00
1.06
1.30
1.54
1.71
1.81
1.79
1.98
3.04
2.28
n/a
n/a
3.32

31%
49%
123%

150%
55%

120%
181%
183%

72%
78%
101%
133%
121%
131%
114%
169%
211%
225%
322%

29%
54%
71%
80%
79%
97%
204%
128%


214%

12.86
3.05
14.78
3.08
14.14
9.82
1.89
55.80
55.80
2,412.20
3.08
Note: Classification of services in UK, Netherlands, France, Sweden, Denmark and Norway known to be correct.
German services depend solely on distance (using retail distance zones), not on network elements used.
Queries: TI charge for termination via SGU appears (from diagrams in TI's price list) to be equivalent to local, but is this correct?
Is it correct to take Spanish 'metropolitan' and 'interprovincial' charges (and assume 'provincial' is equivalent to DT short or medium?)
Is Belgacom's rental charge for access to access points a charge for the switch port?






ANNEX A


Comparison of peak rates with DGXIII benchmark ranges for termination
Charges shown in ECUs/100 per minute

Using current exchange rates
DGXIII benchmark ranges

National
Local Metropolitan (>200 km)
 Exchange
rates per ECU
(at 19 Nov
1997) 		Exchange
rates per
ECU (Sept
1997) 		DGXIII versus
current exchange
rates


lower bound
upper bound
0.60 0.90 1.50
1.00 1.80 2.60
% difference to upper bound
BT
Tele Danmark
DTAG
KPN
FT
Telia
Telefonica
Belgacom
TI

Telenor
 UK
Denmark
Germany
Netherlands
France
Sweden
Spain
Belgium
Italy

Norway
 0.64
0.97
1.00
n/a
1.00
1.66
n/a
1.31
1.53

1.90
0.91
1.81
1.70
1.99
2.12
2.12
1.50
2.27
2.50

2.40
1.74
2.21
2.60
2.50
2.93
2.93
4.34
3.12
n/a

3.15
-36%
-3%
0%

0%
66%

31%
53%

90%
 -49%
1%
-6%
10%
18%
18%
-17%
26%
39%

33%
 -33%
-15%
0%
-4%
13%
13%
67%
20%


21%
0.68
7.53
1.98
2.23
6.63
8.65
167.10
40.84
1938

8.05
0.68
7.49
n/a
2.21
6.59
8.51
166
n/a
n/a

n/a
 0.4%
-0.6%
n/a
-0.9%
-0.6%
-1.6%
-0.7%
n/a
n/a

n/a
as used in
DGXIII paper
Note: Classification of services in UK, Netherlands, France, Sweden, Denmark and Norway known to be correct.
German services depend solely on distance (using retail distance zones), not on network elements used.
Queries: TI charge for termination via SGU appears (from diagrams in TI's price list) to be equivalent to local, but is this correct?
Is it correct to take Spanish 'metropolitan' and 'interprovincial' charges (and assume 'provincial' is equivalent to DT short or medium?)
Is Belgacom's rental charge for access to access points a charge for the switch port?



Using PPP exchange rates
DGXIII benchmark ranges

National
Local Metropolitan (>200 km)
 Estimated
PPP (1996)
exchange
rates 		Current versus
PPP exchange
rates


lower bound
upper bound
0.60 0.90 1.50
1.00 1.80 2.60
% difference to upper bound
BT
Tele Danmark
DTAG
KPN
FT
Telia
Telefonica
Belgacom
TI

Telenor
 UK
Denmark
Germany
Netherlands
France
Sweden
Spain
Belgium
Italy

Norway
#



#
##

##

# 		0.64
0.84
0.95
n/a
0.99
1.43
n/a
1.41
1.81

1.60
0.91
1.57
1.63
2.13
2.11
1.83
1.95
2.46
2.96

2.02
 1.74
1.91
2.49
2.67
2.92
2.53
5.67
3.37
n/a

2.65
 -36%
-16%
-5%

-1%
43%

41%
81%

 -49%
-13%
-10%
18%
17%
2%
9%
36%
65%

12%
 -33%
-26%
-4%
3%
12%
-3%
118%
30%


2%
 0.68
8.70
2.07
2.09
6.65
10.00
127.94
37.78
1633

9.57
 0%
-13%
-4%
7%
0%
-14%
31%
8%
19%
# significantly more favourable using PPP rather than current exchange rate
## significantly less favourable using PPP
Note: PPP information relative to ECU not available from OECD, so conversion to
per ECU uses ｣/ECU (PPP, 1996)ie currency/｣ x ｣/ECU = currency/ECU.
To be correct, it requires that current ｣/ECU = PPP ｣/ECU.
A comparison of current and PPP exchange rates (versus DM, FFr and $)
suggests that this may be a reasonable approximation.



Peak to average ratios
Local Metropolitan National
(>200 km) 		Current
versus
PPP
exchange
rates 		From
left 		From above
BT
Tele Danmark
DTAG
KPN
FT Telia
Telefonica
Belgacom
TI
 1.32
1.26
1.23
n/a
1.13
1.26
n/a
1.21
1.28
 1.32
1.25
1.25
1.24
1.15
1.28
1.02
1.23
1.28
 1.32
1.27
1.24
1.25
1.16
1.29

1.23
n/a
 1.00
1.16
1.04
0.94
1.00
1.16
0.77
0.93
0.84
1.82
1.89
2.48
2.67
2.07
2.77
2.89
3.36

99%
86%
118%
132%
132%
64%
149%
174%
99%
86%
118%
132%
132%
64%
149%
174%


Ratio of DT long to DT average
BT
DTAG		 1.18
1.09







UK



BT
Charges set by

OFTEL
peak to off-peak ratio
1.79
D to E

2.14
D to W

1.95
D to E,W avg
For date

1997/10/1

Service charges (incl PPP)
24 hour
average

Daytime
(peak)
Evening
Weekend
LES


0.331

0.434
 0.243
0.203
ST


0.471

0.618
0.345
0.289
DT
short

0.650

0.853
0.476
0.399

med

0.743

0.975
0.544
0.456

long

0.897

1.177
0.657
0.551

simple average



 1.002

Origination
LES


0.374

0.491
0.274
0.230
ST


0.514

0.675
0.376
0.316
DT
short

0.693

0.910
0.507
0.426

med

0.786

 1.032
0.575
0.483

long

0.940

1.234
0.688
0.578

simple average


1.059

Average using weights as per other countries

Weights



term
orig
50%
25.0%
25.0%
LES

-1%
0.329
0.372
ST

-1%
0.468
0.511
DT
short
-1%
0.645
0.688

med
-1%
0.738
0.781

long
-1%
0.891
0.934

average

0.758
 0.801

Peak to average ratio
1.32







France


FRANCE TELECOM
ART press release
Charges set byART
For year
1998


Average (incl switch port)
per minute charges:-

incl switch port (per min)
centimes per minpeakoff peakpeakoff peakNo. subcribers accessed (approx)
Intra-local exchanges6.094.693.226.605.130.03mn
Single transit12.7811.47.8314.0410.472mn
Dual transit17.5716.7711.5119.4114.15whole of France
Assuming 65% peak traffic
Transit (local exchange i/x)n/a10.887.47

Definition of peak
Mon-Fri 0800 to 1900 and Sat 0800 to 1200
peak to off-peak ratio

1.46 for per min charges




Trunk
Local


Switch port rental pa
exchange i/x
exchange i/x
47,590
 34,450
FFr
per annum per 2Mbit/s
2.64
 1.91
centimes
per min equivalent


Switch port rental costs included on per min basis assuming minutes per annum per 2Mbit/s connection of
1.80
mn


 1,800,000 m
could be derived by






60
mins per circuit






30
circuits per 2mbit/s






365
days pa






 2.74
 hours per day
24






 657,000

 15,768,000
max





11% of theoretical max

Assumptions:-


peak
off-peak
check averages
Intra-local exchanges
 5.87
-4%
Single transit
 12.26
-4%
Dual transit
16.78
-4%

pence per min
average
peak
Intra-local exchanges
0.60
0.67
Single transit
1.25
1.43
Dual transit
1.71
1.98
Peak to average ratio
1.13


1.15


1.16
Switch port - different peak/off-peak centime per min rates


avg
peak
off-peak


local
1.91
2.27
1.56

tandem
2.64
3.13
2.15

Intra-local exchanges
5.87
6.96
4.78
Single transit

12.26
14.53
9.98
Dual transit

16.78
19.90
13.66

Peak to average ratio
1.19

 1.19

 1.19


Weights for average
50%
50%



Exchange rate
PPP for 1996


 9.82

Source: OECD























Germany


DEUTSCHE TELEKOM
Information supplied by BMPT
Charges set by Bundesministerium fur Post und Telekommunikation
For year 1998-9 ie until December 1999

Charges depend only on distance, not network elements or number of switching stages
However, there is likely to be a correlation between distance and switching stages
Charges are the same (for same distance) whether interconnect is at local or tandem switch
Distance bands are the same as DT's retail distance zones
Pfennigs per min peak off-peak
City zone
Regio 50
Regio 200
Fernzone
 0-20 km
20-50 km
50-200 km
>200 km
 equiv to
equiv to
equiv to
equiv to
 LES
ST
DT short/med
DT long
 1.97
3.36
4.25
5.14
 1.24
2.02
2.35
3.16

Definition of peak 0900 to 2100, 7 days a week
peak to off-peak ratio 1.59 City zone
1.66 Regio 50
1.81 Regio 200
1.63 Fernzone

Assumptions:-
peak off-peak Avg
Weights for average 50% 50% 1.61
2.69
3.30
4.15
 City zone
Regio 50
Regio 200
Fernzone



Exchange rate
PPP for 1996
Source: OECD
3.05
pence per min avg peak
City zone
Regio 50
Regio 200
Fernzone
 0.53
0.88
1.08
1.36
 0.65
1.10
1.39
1.68


LES
ST
Simple average of Regio 200 and Fernzone 1.22 1.54
DT average
Peak to average ratio
1.23
1.25
1.29
1.24







Netherlands


KPN
KPN price list
Charges set by KPN(yet to be fully checked by OPTA)
For year 1997(price list dated July 1997)
Call attempts:successful calls
1.5

Termination
peak off peak overall per min Set-up as % of total Per set-up as % of total
set-up per min set-up per min peak off-peak peak off-peak peak off-peak
Local
National
 equiv to ST
equiv to DT
 2.5
3.2
 3.6
4.5
 2.1
2.6
 2
2.5
 4.43
5.57
 2.70
3.37
 19%
19%
 26%
26%
 13%
14%
 19%
19%
Note: Interconnection at KPN local exchanges is not yet on offer
Origination
Local
National
 5
5.8
 7.1
8.3
 4.1
4.8
 4
4.6
 8.77
10.23
 5.37
6.20
 

Definition of peak     Mon-Fri 0800-1800
peak to off-peak ratio       1.80

Assumptions:-
peak off-peak Termination
Average
per min
 Origination average
Weights for average 50% 50% Local 3.57 7.07 98% 21%
average call duration
3
 mins National 4.47 8.22 84% 22%



Exchange rate
PPP for 1996
Source: OECD
3.08
Termination
pence per min Avg peak
Local
National
 1.16
1.45
 1.44
1.81
Origination
Avg peak
2.29
2.67
 2.85
3.32
Peak to average ratio
1.24
1.25


overall per min, including allowance for unsuccessful calls % difference from charges without allowance
peak off-peak peak off-peak
avg call duration
ratio attempts:successful

 3 mins
1.5

 Local
National
 4.85
6.1

 3.05
3.8

 9%
10%

 13%
13%
unsuccessful attempts per successful min 0.17







Denmark


Tele Danmark
Prices supplied by Danish regulator, Telestyrelsen
Charges set by     Tele Danmark
For year        1997    Aug-97

peak

 off peak

 overall per min

 Per set-up as % of total
per set-up per min per set-up per min peak off-peak peak off-peak
Local segment
Single segment
Double segment
 4
8
8
 6
11
14
 4
8
8
 3
5.5
7
 7.33
13.67
16.67
 4.33
8.17
9.67
 18%
20%
16%
 31%
33%
28%

Per call charge is levied if the far end is engaged or not answering - it is only not charged if the call failure is due to network failure
Per call charge introduced into interconnection 5 years ago
Definition of peak     unknown
peak to off-peak ratio     2.00 for per min charges     Number of metropolitan areas    5

Assumptions:-
peak off-peak Average
per min
Weights for average 50% 50% Local segment 5.83
average call duration 3 mins Single segment 10.92
Double segment 13.17



Exchange rate
PPP for 1996
Source: OECD
12.86
pence per min Avg peak
Local segment
Single segment
Double segment
 0.45
0.85
1.02
 0.57
1.06
1.30
Peak to average ratio
1.26
1.25
1.27


overall per min, including allowance for unsuccessful calls % difference from charges without allowance
peak off-peak peak off-peak
avg call duration
ratio attempts:successful

 3 mins
1.5

 Local segment
Single segment
Double segment
 8
15
18
 5
9.5
11
 9%
10%
8%
 15%
16%
14%
unsuccessful attempts per successful min 0.17


Leased lines
in ECUs/100
Access line 64 kbit/s installation
quarterly
 914
122
Access line 2Mbit/s installation
quarterly
 927
244
Intra exchange 64 kbit/s installation
quarterly
< 5 km
> 75 km		 241
51
495
Intra exchange 2Mbit/s installation
quarterly
< 5 km
> 75 km		 927
509
4,926


???Interconnect circuits are intra exchange







Sweden


Telia
Telia price list
Charges set by Telia(not approved by PTS, who only become involved if dispute needs to be resolved)
For year 1997
Call attempts:successful calls
1.5

ore
peak
per call		 off peak
per call		 overall per min

 Per call as % of total Per set-up as % of total
(successful) per min (successful) per min peak off-peak peak off-peak peak off-peak
Local segment
Single segment
Double segment
 7
7
7
 12
16
23
 7
7
7
 6
8
11.5
 14.33
18.33
25.33
 8.33
10.33
13.83
 16%
13%
9%
 28%
23%
17%
 11%
9%
6%
 21%
16%
12%
 

Definition of peak    Mon-Fri 0800-1800
peak to off-peak ratio       2.00 for per call charges

Assumptions:-
peak off-peak Average
per min
Weights for average 50% 50% Local segment 11.33
average call duration 3 mins Single segment 14.33
Double segment 19.58



Exchange rate
PPP for 1996
Source: OECD
14.78
pence per min Avg peak
Local segment
Single segment
Double segment
 0.77
0.97
1.33
 0.97
1.24
1.71
Peak to average ratio
1.26
1.28
1.29







Spain


Telefonica
Branch 10 Euronotes
Charges set by Spanish Government (Minister of Development)
For year 1997 since April 1997

max normal reduced
Metropolitan
Provinicial
Interprovincial
 equiv to
equiv to
equiv to
 ST?
DT, short or med?
DT, long?
 2.5
4.25
7.25
 2.5
3.87
4.97
 2.3
2.38
3.01
peak to off-peak ratio
max to normal
1.00
1.10
1.46
 max to reduced
1.09
1.79
2.41
 

Definition of peak          unknown

Assumptions:-
max normal reduced Avg
Weights for average 50% 25.0% 25.0% Metropolitan
Provinicial
Interprovincial
 2.45
3.69
5.62



Exchange rate
PPP for 1996
Source: OECD
1.89
pence per min avg peak
Metropolitan
Provinicial
Interprovincial
 1.30
1.95
2.97
 1.32
2.25
3.84


ST
Simple average of Provincial and Interprovincial 2.46 3.04
DT average
Peak to average ratio
1.02
1.15
1.29







Italy


Telecom Italia
TI price list
Charges set by TI
For year 1998 price list dated 18/07/97

lire per min peak off-peak
Collect/termination via SGU
Collect/termination via SGT
 equiv to LES
equiv to ST
 29.6
48.4
 16.8
27.4

Definition of peak unknown
peak to off-peak ratio 1.76

Assumptions:-
peak off-peak Avg
Weights for average 50% 50% Collect/termination via SGU
Collect/termination via SGT
 23.20
37.90



Exchange rate
PPP for 1996
Source: OECD
2412.20
pence per min avg peak
Collect/termination via SGU
Collect/termination via SGT
 0.96
1.57
 1.23
2.01
Peak to average ratio
1.28
1.28







Norway


TELENOR
Telenor price list
Charges set by Telenor
For year Jun-97
Call attempts:successful calls
1.5

Termination
peak
successful		 off peak
successful		 overall per min

 Set-up as % of total

 Per set-up as % of total
set-up per min set-up per min peak off-peak peak off-peak peak off-peak
Local segment
Single segment
Double segment
 equiv to LES
equiv to ST
equiv to DT
 13
13
13
 11
15
21
 13
13
13
 6
10
16
 15.33
19.33
25.33
 10.33
14.33
20.33
 28%
22%
17%
 42%
30%
21%
 21%
16%
12%
 33%
22%
15%

Origination as per termination
Definition of peak     0800-1700
peak to off-peak ratio       1.50   for per min charges

Assumptions:-
peak off-peak Termination
Average
per min
Weights for average 50% 50% Local 12.83
average call duration 3 mins Inside i/x zone 16.83
Outside i/x zone 22.83



Exchange rate
PPP for 1996
Source: OECD
14.14
Termination
pence per min Avg peak
Local
Inside i/x zone
Outside i/x zone
 0.91
1.19
1.62
 1.08
1.37
1.79
Peak to average ratio
1.19
1.15
1.11


overall per min, including allowance for unsuccessful calls % difference from charges without allowance
peak off-peak peak off-peak
avg call duration
ratio attempts:successful

 3 mins
1.5

 Inside i/x zone
Outside i/x zone
 21.5
27.5

 16.5
22.5

 11%
9%

 15%
11%
unsuccessful attempts per successful min 0.17







Finland


Finland
price list
Charges set by
For year          since Sept 1997

peak

 off peak

 per min

 Per call as % of total
per call per min per call per min peak off-peak peak off-peak
Local segment
Single segment
Double segment

min
max 		n/a
20
20
20
 n/a
4
13.8
18
 n/a
n/a
n/a
n/a
 n/a
n/a
n/a
n/a
 #VALUE!
10.67
20.47
24.67
 #VALUE!
#VALUE!
#VALUE!
#VALUE!
63%
33%
27%
#VALUE!
#VALUE!
#VALUE!

Definition of peak
peak to off-peak ratio #VALUE! for per call charges

Assumptions:-
peak off-peak Average
per min
Weights for average 50% 50% Local segment #VALUE!
average call duration 3 mins Single segment #VALUE!
Double segment #VALUE!



Exchange rate
PPP for 1996
Source: OECD
8.88
pence per min Avg peak
Local segment
Single segment
Double segment
 #VALUE!
#VALUE!
#VALUE!
 #VALUE!
1.20
2.30
min







Belgium


Belgacom
Reference Interconnect Offer
Charges set by Belgacom Approved by the Belgian Institute for postal services and telecommunications in November 1997
For year 1998
Call attempts:successful calls
1.5

Belgian Francs peak off peak overall per min (excl access point) overall per min (incl access point) Per call as % of total Per set-up as % of total
per successful per successful
Calls to geographic numbers call per min call per min peak off-peak peak off-peak peak off-peak peak off-peak
Local
Intra Access Area
Extra Access Area
 0.14
0.27
0.38
 0.41
0.77
1.08
 0.09
0.16
0.23
 0.24
0.46
0.65
 0.46
0.86
1.21
 0.27
0.51
0.73
 0.53
0.93
1.27
 0.35
0.58
0.79
 10%
10%
10%
 11%
10%
11%
 7%
7%
7%
 8%
7%
7%
Collecting Access Service
Local
Intra Access Area
Extra Access Area
 0.19
0.32
n/a
 0.54
0.90
n/a
 0.12
0.19
n/a
 0.32
0.54
n/a
 0.60
1.01
n/a
 0.36
0.60
n/a
 0.68
1.07
n/a
 0.44
0.67
n/a
Note: per call charge levied on unsuccessful calls above threshold proportion of 50% of calls handed over

Definition of peak Mon-Fri 0800-1800
peak to off-peak ratio 1.67 for per min charges
1.69 for per call charges

??Is this a rental charge for the switch port?

 Access to access points

 
  Area    Local
 access   access
  point    point
121,654 139,060 BFr per annum per 2Mbit/s
0.07 0.08 BFr per min equivalent
Switch port rental costs included on per min basis assuming minutes per annum per 2Mbit/s connection of
1.80
 mn
Assumptions:-
Calls to geographic numbers Average excl access point Average incl access point Collecting Access Service Average excl access point Average incl access point
peak off-peak per min per min per min per min
Weights for average 50% 50% Local 0.36 0.44 Local 0.48 0.56
average call duration 3 mins Intra Access Area
Extra Access Area
 0.69
0.97
 0.75
1.03
 Intra Access Area
Extra Access Area
 0.81
n/a
 0.87
n/a



Exchange rate
PPP for 1996
Source: OECD
55.80
Excl access point
pence per min Avg peak
Local
Intra Access Area
Extra Access Area
 0.65
1.23
1.73
 0.82
1.54
2.16
Incl access point
Avg peak
0.79
1.35
1.85
 0.96
1.66
2.28
Excl access point
pence per min Avg peak
Local
Intra Access Area
Extra Access Area
 0.86
1.44
n/a
 1.08
1.80
n/a
Incl access point
Avg peak
1.00
1.56
n/a
 1.22
1.93
n/a
Peak to average ratio 1.26
1.25
1.25
 1.21
1.23
1.23
 Peak to average ratio 1.25
1.25
 1.22
1.23







Japan


NTT
NTT proposed prices

Charges set by
Telecommunications Council







Call attempts:successful calls
For year
Press release dated 5 February 1998
1.5

yen





Overall


Per call as % of total

Per set-up as % of total


per call


(successful?)
per min


per min
per 3 mins

per min

per min
GC connection
equivalent to LES
0.99
1.734



2.06
6.19

16%

11%
ZC connection
equivalent to ST
1.28
3.882



4.31
12.93

10%

7%

ZC connection for payphones
1.28
9.096



9.52
28.57
ZC connection for ISDN

3.67
7.308



8.53
25.59
ZC connection for ISDN payphones
3.67
12.432



13.66
40.97
PHS Inner City Communication
1.71
3.798



4.37
13.10

Definition of peak
n/a
peak to off-peak ratio
n/a
Assumptions:-






Average


peak
off-peak



per min
Weights for average

n/a
n/a

GC connection

2.06
average call duration

3
mins

ZC connection

4.31
pence per minAvg
GC connection0.81
ZC connection1.68
Compared to
telephony ZC
ZC connection for payphones3.72121%
ZC connection for ISDN3.3398%
ZC connection for ISDN payphones5.34217%
PHS Inner City Communication1.711%


Exchange ratePPP for 1996 255.95

Source: OECD







Peak to average ration/a

n/a

n/a