Additional Parameters - Siemens HiPath 3000 Series Service Documentation

Nur für den internen Gebrauch
2.5.2.4

Additional Parameters

In order to calculate the number of points for a specific system, several additional parameters
are usually required. These parameters are described below.
Factor F (subscriber traffic factor):
●
Tln
As in Guideline 12TR3 for 700 ports or more, this rule of thumb assumes a station traffic
value P = 0.15 Erl and four outgoing seizures per device during busy traffic hours. The
Tln
factor F is used to achieve a certain flexibility in the underlying station traffic values and
Tln
seizures. In the case of international systems, in particular, a factor greater than 1 may be
appropriate in some circumstances (e.g., P
the following applies:
If the seizure value per terminal is not directly specified, F
lationship to the 4 outgoing seizures indicated above (e.g., 3 seizures produce a value of
F = 0.75).
Tln
Factor F (trunk traffic factor) for traffic volume on trunks:
●
Ltg
As in Guideline 12TR3, this rule of thumb assumes a line traffic value P
12.5 incoming seizures per B channel during busy traffic hours. The factor F
achieve some flexibility in the underlying traffic values and seizures. A factor of less than
1 (for example, P
for systems that were over-dimensioned to create a virtually blockage-free system. In gen-
eral, the following applies:
Factor F (AC traffic factor) for traffic volume of an attendant console:
●
VPL
This rule of thumb assumes a traffic value at an active attendant P
seizures during busy traffic hours. The factor F
underlying station traffic values and seizures. A factor of less than 1 may be appropriate,
especially for systems in which the attendant consoles were over-dimensioned. In general,
the following applies:
Factor C for ACD utilization:
●
For ACD agents, the intensity of the utilization of this feature must also be taken into ac-
count. By default, it is assumed that an ACD agent handles 16 ACD calls per hour. If ap-
plications need to be configured with values that significantly exceed or fall below this de-
fault, the factor C can be used to specify the corresponding multiple of the value 16. For
example, TV advertising campaigns may incur values of up to ten times the norm.
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
P
Tln
F =
Tln
0.15
= Ltg = 0.63) may be appropriate in some cases, especially
Ltg 0.5 Erl gives F
P
Ltg
F =
Ltg
0.8
P
VPL
F =
VPL
0.8
Dynamic Configuration Rules
= 0.20 erl results in F
Tln
BHCA
Tln
F =
Tln
4
can be determined via the re-
Tln
BHCA
Ltg
F =
Ltg
12.5
is used to achieve some flexibility in the
VPL
BHCA
VPL
F =
VPL
144
sysdat.fm
System Data
= 1.33). In general,
Tln
= 0.8 Erl and
Ltg
is used to
Ltg
= 0.8 Erl and 144
VPL
2-57