Mitel SX-200 Practices page 623

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1 .
GENERAL
Introduction
1.1
This Practice describes
principles
of telephone
traffic measurement
for an
SX-20031
DIGITAL
PABX, including
programming
and operating
procedures
for obtaining
Traffic Measurement
data.
Reason for Reissue
1.2
This Practice
is reissued
to provide
information
about Traffic
Measurement
for the
SX-200 DIGITAL
PABX.
This is the first issue to include
Generic
1005,
Note that
672-port
reports,
ACD reports,
and Automated
Attendant
reports
are not available
with Generic
1001
and Generic
1002.
ACD reports
are also not available
with
Generic
1003
Basic.
Automated
Attendant
reports
and ACD
reports
are not
available
with Generic
1005 FPKG I and LlT96.
Traffic Analysis
1.3
Traffic
Analysis
consists
of two
activities:
to collect
data
about
the
system
(measurement)
and to interpret
this data (analysis)
to optimize
system
performance,
Once traffic measurement
has been started
in the PABX, it continues
automatically
until changed
or stopped.
Traffic
measurement
produces
a single
report
for the
system.
The report includes
all tenants,
if tenant
service is provided.
Traffic measurement
accumulates
data in the form of peg counts
and usage
over a
specified
period
of time. A peg count
is the total number
of times a facility (device,
service,
or feature)
is accessed,
irrespective
of the length of each access.
Usage
is
the length of time or duration
for which each facility is used. In certain applications,
the
peak value of facility usage during the period is also recorded.
Call holding time is the
average
length of each call.
usage
= tea counts (cer hour)
X call holdina time (in seconds)
(Erlangs)
3600 (seconds
per hour)
usage
= .
Des counts her hour) X call holdina time iin seconds)
ws
)
100 (seconds
per CCS period)
(CCS = centi-call
second)
usage
=
usaae (CCS)
(Erlangs)
36
or,
I Erlang = 36 CCS
Examine
traffic
measurement
results
to determine
the adequacy
of equipment
provisioning,
and the effectiveness
of programmed
options
and features,
Analyze
the
results
to identify
changes
which
can be implemented
by reprogramming
and/or
reprovisioning
to improve
system
performance.
9109-096-45O-NA
Issue 1
Revision 0
450 1-l

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