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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
ATM Switch Feature Interactions
B-5Location-related Interactions
B
Dial Plan Users on port
networks located in
different North
American Number
Plan Areas (NPAs)
expect to make
local calls by
dialing 7-digit
numbers. Although
the digits dialed by
two different users
may be the same,
the actual intended
destinations may be
different.
Carefully consider AAR
and ARS routing
parameters in ATM
configurations.
System clock Time displays and
stamps in all other
locations
automatically
change according
to the administered
Daylight Savings
Time rules.
Elapsed-time fields for
features such as Call Detail
Recording (CDR) are
treated as they are now
whenever the system clock
is reset during the
transition to and from
daylight savings time. The
system administrator may
choose not to specify
daylight savings time for
the system clock, thereby
avoiding the transitions.
This may make time-of-day
routing tables inaccurate.
And, because the
automatic daylight
transition occurs early in
the morning (at least by
U.S. rules), only a few CDR
records are affected.
With one administration
change at the PPN, all
remote locations display
and timestamp in locally
adjusted Daylight Savings
Time.
Table B-2. DEFINITY operations affected by location — Continued
Operation Description User interface Performance
Continued on next page