Restrictions During Esa Mode; Fault Conditions - Nortel DMS-100 Series Maintenance Manual

3-28 ESA maintenance overview

Restrictions during ESA mode

As a global restriction, ESA mode does not support the following:
As a restriction that applies during ESA mode for POTS lines and features,
ESA mode does not support the following:
As a restriction that applies during ESA mode for MDC lines and features,
the following are not supported:

Fault conditions

The fault condition of communication links that the system cannot use
triggers the ESA mode of operation. There are several possible reasons for
this fault condition.
297-8211-550 Standard 05.01 August 1999
line diagnostics.
MADN group operation.
recorded announcements.
Local call detail recording (LCDR).
Local automatic message accounting (LAMA).
Centralized automatic message accounting (CAMA).
Remote register signal distributor point lines.
Dial tone speed operational measurements (OM).
Teletypewriter exchange service (TWX).
Foreign exchange calls.
Equal access features.
Station message detail recording (SMDR)
Attendant consoles
Custom calling features, that include the following:
— flashing
— conference calls
— DDU feature keys. There is no action results when the user presses
feature keys.
Remote meter pulsing lines
MDC electronic business set feature keys. An action does not result
when the user presses feature keys.
Party line circle digits
Automatic number identification (ANI)