Nortel DMS-100 Series Maintenance Manual page 193

Restrictions during ESA mode
Global restrictions during ESA mode are as follows:
• The system does not support line diagnostics while the OPM is in ESA
mode.
• The system does not provide ESA mode for an OPM that changes.
• The system does not support MADN group operation.
• The system does not support recorded announcements.
Restrictions during ESA mode for POTS lines and features are as follows:
• The system does not support local call detail recording (LCDR).
• The system does not support local automatic message accounting
(LAMA).
• The system does not support centralized automatic message accounting
(CAMA).
• The system does not support remote register signal distributor point lines.
• The system does not support dial tone speed operational measurements
(OM).
• The system does not support teletypewriter exchange service (TWX).
• The system does not support foreign exchange calls.
• The system does not support equal access features.
Restrictions during ESA mode for MDC lines and features are as follows:
• The system does not support station message detail recording (SMDR).
• The system does not support attendant consoles.
• The system does not support custom calling features. These features are
as follows:
— flashing
— conference calls
— digital data unit (DDU) feature keys. No action occurs when the caller
presses feature keys.
• The system does not support remote meter pulsing lines.
• The system does not support MDC electronic business set feature keys. No
action occurs when the caller presses feature keys.
• The system does not support party line circle digits.
• The system does not support automatic number identification (ANI).
DMS-100 Family OPM Maintenance Manual ISN07 (TDM)/SN07 (DMS) and up
ESA maintenance overview 4-25