ESA maintenance overview 3-27
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Ringing during ESA mode
The OPAC needs duplicated ringing generators. The OPAC ESA mode
supports the following ringing types:
• coded
• frequency
• superimposed
• immediate
Treatments during ESA mode
The OPAC ESA mode supports the following treatments, or tones:
• busy
• reorder
• receiver off-hook (ROH)
ESA limits and restrictions
The following limits and restrictions apply to the OPAC in ESA mode.
Limits during the ESA mode
Limits during the ESA mode for POTS lines and features are the following:
• the ESA mode only supports the three-to-seven digit POTS dialing plan.
• the ESA mode only supports one HNPA code for each OPAC.
The following limits apply during the ESA mode for MDC lines and
features:
• The ESA mode for MDC lines only supports the MDCXLA translation
selector for station-to-station calling. The MDCXLA translation selector
is the number of digits in the extension number. If the system does not
datafill the selector, the system uses the POTS translation.
• The MDC lines do not support network class of service (NCOS). The
system restricts customer groups or lines to a dialing plan common to all
customer groups.
• The system can support the primary number of a MADN during the ESA
mode. The group must be an MDC business set PDN key or a 500/2500
set directory number.
Note: The system does not support all MDC and POTS features or lines.
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