Mitel SX-200 Practices page 630

Traffic Measurement
Max in use/Available:
Scanned maximum number of trunks in the trunk group
that were busy (busied-out trunks are not included). The number of available
trunks in a trunk group is determined at the time of the traffic measurement report
and is not in the storage registers.
Trunks
- Records activity of each trunk.
Trunk activity includes the following
information:
Trunk Number:
List of all trunk numbers that were accessed.
Peg in:
Total number of times the trunk was seized for incoming calls
\
(maximum = 255).
Usage In:
Represents the usage (in Erlangs or CCS) for incoming calls on the
trunk (maximum = 36 ccs).
Peg Out:
Total number of times the trunk was seized for an outgoing call on the
trunk (maximum = 255).
Usage Out:
Represents the usage (in Erlangs or CCS) for outgoing calls on the
trunk (maximum = 36 ccs).
Register Count Examples
2.3
A call which lasts for 100 seconds has a value of I CCS (one hundred call-seconds).
One Erlang equals 36 CCS or 3600 call seconds, Usage is measured in I O-second
units; for example, a usage count of 128 (I 28 x IO s) represents 1280 seconds of
usage, equivalent to 12.8 CCS or 0.3556 Eriang (36 CCS equals 1 Erlang). The
following example illustrates these "count" methods.
Extension Originations Peg Count -
Each time an idle extension goes off-hook, it
causes the register to increment by one count. Since it is a measure of the number of
calls originated by the extensions, it does not increment when a ringing extension goes
off-hook to answer a call. For example, if this register has a value of 858, the number
of call originations (or off-hook originations) during the period totalled 858.
Trunk Group Usage
- Each time the system scans the members of this trunk group,
at IO second intervals, it counts the number of members that are busy. A register value
of 273 indicates that members were busy for 273 X IO = 2730 seconds (27.3 CCS)
during the measurement period.
Usage Measurement
- Device usage is measured every ten seconds; therefore, each
usage measurement is accurate to +/- IO seconds (0.1 CCS or 0.0028 Erlang).
Console usage measurement is accurate to +/-- 1 second (0.01 CCS or 0.00028
Erlang) because they are scanned every second.
602-6
Revision
0 9109-096-45O-NA
Issue
1