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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Features and technical reference
1435Modem Pooling
20
■ Tandem switches do not insert a pooled modem. The originating switch
inserts a pooled modem.
Interactions
■ Call Detail Recording
Data call CDR records the use of modem pools on trunk calls.
■ Data Call Setup
Data calls to or from a TDM cannot use Modem Pooling.
■ Data Privacy and Data Restriction
The insertion of a modem pool does not turn off Data Privacy or Data
Restriction.
■ Data-Only Off-Premises Extensions
Calls to or from a Data-Only Off-Premises Extension cannot use Modem
Pooling, when this type of digital-data endpoint uses a TDM.
■ Digital-multiplexed Interface Trunks
If you place a data call from a local analog-data endpoint to a DMI trunk,
you must dial the data-origination access code to obtain a modem. Data
calls on DMI trunks to local analog-data endpoints automatically obtain
modems.
■ DS1 Tie Trunk Service
Connect modems used for Modem Pooling to AVD DS1 tie trunks via Data
Terminal Dialing or by dialing the feature-access code for data origination.
Related topics
To set up modem pooling for single-carrier cabinets, refer to DEFINITY ECS
Installation and Test for Single-Carrier Cabinets.
To set up modem pooling for compact modular cabinets, refer to DEFINITY ECS
Installation, Upgrades and Additions for CMC.
To set up modem pooling for multi-carrier cabinets, refer to DEFINITY ECS
Installation and Test for Multi-Carrier Cabinets.
To set up modem pooling for G3si cabinets, refer to DEFINITY ECS Upgrades
and Additions for R7si.