Nortel DMS-100 Series Reference Manual page 133

Meridian Digital Centrex (MDC) customer groups use this data. This table
is not in use during normal operation of the RCO2 , and translations occur in
the central control (CC). When a loss of communication with the host
occurs and the RCO2 enters ESA mode, use of this table occurs in the prefix
translations.
Table CUSTHEAD
Table customer header (CUSTHEAD) links a customer group to the prefix
translation table name as table ESAPXLA identifies.
For MDC lines, you must link the information in the ESAPXLA prefix
tables to a particular customer group. The ESAPXLA option specifies the
prefix translator name for the customer group.
When the ESA feature package is present, enter data in fields OPTION and
XLANAME of table CUSTHEAD. When the OPTION field does not have
the ESAPXLA option set, a prefix translation for that customer group is not
available.
Office parameters for ESA lines
The office parameters for ESA entry and exit include the following:
RSC_ESA_NOTIFY_TONE
RSC_XPMESAEXIT
The RSC-ESA lines feature package uses the office parameters that control
ESA static data. The required office parameters that appear in a switching
unit with the ESA software feature package follow:
RSC_ESASDUPD_BOOL
RSC_ESASDUPD_HOUR
Note: The Office Parameters Reference Manual contains descriptions of
every office parameter.
RSC_ESA_NOTIFY_TONE
This parameter controls if the subscriber hears a distinctive dial-tone burst,
which is 0.25 s on and 0.25 s off. This dial-tone burst alerts the end user that
the RCO2 is in ESA. This parameter is in table OFCENG.
DMS-100 Family XPM International Translations Reference Manual XPM12 and up
Datafilling ESA lines and trunks on RSC-S International 3-109
ESA lines and trunks
(continued)