Nortel DMS-100 Series Maintenance Manual page 135

ESA CC basic call processing structure
Maintenance
Requests
Terminal
Processing Task
(TPT)
Server
ESA CC Queue
Call Process
Controller
(CPC)
Supervision
Sender (SS)
A terminal sends maintenance
requests and event messages
(digit collection, on-hook and
off-hook) to the TPT.
The TPT sends messages to the
server to code or decode.
The server sends messages to the
ESA CC queue; the queue order is
first-in, first-out.
The ESA CC queue sends
messages to the CPC for call
processing. Terminal data is
gathered from the translation data
tables and TST. The CPC looks at
the TST to determine the line state
and what message templates to
create.
The CPC collects digits in the
translation facilities and determines
if enough digits are collected. The
static data enables the CPC to
perform translations.
Translation
Data Tables
The SS takes the message
templates to create work requests
(collection of digits, application of
dial tone) to send to the server.
DMS-100 Family RLCM Maintenance Manual XPM12 and up
ESA maintenance overview 3-13