Modem Pooling - Avaya Communication Manager Administrator's Manual

Modem Pooling

Modem Pooling allows switched connections between digital-data endpoints (data modules)
and analog-data endpoints via pods of acoustic-coupled modems. The analog-data endpoint is
either a trunk or a line circuit.
Data transmission between a digital data endpoint and an analog endpoint requires conversion
via a modem, because the DCP format used by the data module is not compatible with the
modulated signals of an analog modem. A modem translates DCP format into modulated
signals and vice versa.
Modem Pooling feature provides pools of integrated-conversion modems and
combined-conversion modems.
Integrated-conversion modem pools have functionality integrated on the Pooled Modem circuit
pack, providing two modems. Each one emulates a TDM cabled to a 212 modem. Integrated
are modem pools not available in countries that use A-law companding.
Combined-conversion modem pools are TDMs cabled to any TDM-compatible modem.
Combined-conversion modem pools can be used with all systems.
The system can detect the needs for a modem. Data calls from an analog-data endpoint require
that the user indicate the need for a modem, because the system considers such calls to be
voice calls. Users indicate this need by dialing the data-origination access code field on the
Feature Access Code
The system provides a Hold Time parameter to specify the maximum time any modem can be
held but not used (while a data call is in queue).
Administering Modem Pooling
For Integrated modem poolings:
1. On the Modem Pool Group screen, administer all fields. See
page 1299 for more information.
2. On the Feature Access Code screen, administer the Data Origination Access Code field.
See Feature Access Code
3. On the Data Module screen, administer all fields. See
information.
For Combined modem poolings:
1. On the Modem Pool Group screen, administer all fields. See
page 1299 for more information.
2. On the Feature Access Code screen, administer the Data Origination Access Code field.
See Feature Access Code
screen before dialing the digital-data endpoint.
on page 952 for more information.
on page 952 for more information.
Modem Pooling
Modem Pool Group
Data Module on page 872 for more
Modem Pool Group
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