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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Managing data calls
404Data-Only Off-Premises Extensions
15
■ Priority Calls
Priority Calls are allowed if the analog station is idle. Call Waiting
(including Priority Call Waiting) is denied if the station is busy. However,
Priority Calls appear on the next available line appearance on
multiappearance telephones.
■ Service Observing
A data-restricted call cannot be service observed.
Data-Only Off-Premises Extensions
Data-Only Off-Premises Extensions allows users to make data calls involving data
communications equipment (DCE) or digital terminal equipment (DTE) located
remotely from the system site.
A Data-Only Off-Premises Extension uses an on-premises modular trunk data
module (MTDM). The system communicates with remote data equipment through
the private-line facility linking the on-premises MTDM and the remote data
equipment.
Users can place data calls to this type of data endpoint using Telephone Dialing or
Data Terminal (Keyboard) Dialing. Since there is no telephone at the remote site,
originate data calls from the remote data terminal using Keyboard Dialing only.
Administering Data-Only Off-Premises
Extensions
1. On the Processor/Trunk Data Module screen, administer all fields.
Refer to ‘‘
Data modules’’ on page 558 for more information.
Considerations
■ The system does not support communications between two TDMs. Modem
Pooling is similar to a TDM, it cannot be used on calls to or from a
Data-Only Off-Premises Extension.
Interactions
■ Telephone Dialing
An on-premises multiappearance telephone may have a Data Extension
button associated with the TDM used for a Data-Only Off-Premises
Extension. The telephone user and the remote user share control of the data
module. Actions of the user at the telephone may affect the remote user.