AT&T 2500 series ⎜Data Services Features, Data Call Setup From a Voice Terminal, Computer Dialing

7-10DATA CONNECTIVITY — AN OVERVIEW

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Table 7-1.Data Feature vs Communications Systems

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⎜

⎜⎜

System 75

⎜

⎜⎜

System 85

⎜

⎜

⎜

_

⎜

_

⎜

⎜

⎜⎜

⎜

R1V2

⎜

R1V3

⎜⎜

⎜

R2V2

⎜

R2V3

⎜

R2V4

⎜Data Services Features

⎜⎜ R1V1

⎜ Generic 1

⎜⎜ R2V1

⎜ Generic 2

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜Data Call Setup From a Voice Set

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

1-Button Transfer with Preindication

Yes

⎜

Yes

⎜

Yes

Yes

Yes

⎜

Yes

⎜

Yes

⎜

Yes

Yes

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

Manual Transfer

⎜⎜

Yes

⎜

Yes

⎜

Yes

⎜

Yes

⎜⎜

Yes

⎜

Yes

⎜

Yes

⎜

Yes

⎜

Yes

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜Terminal Dialing

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

Numeric Dialing

Yes

⎜

Yes

⎜

Yes

Yes

Yes

⎜

Yes

⎜

Yes

⎜

Yes

Yes

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

Default Dialing

⎜⎜

No

⎜

No

⎜

No

⎜

No

⎜⎜

No

⎜

No

⎜

Yes

⎜

Yes

⎜

Yes

⎜

⎜

⎜

⎜

⎜

⎜

⎜

Mnemonic Dialing

⎜⎜

No

⎜

No

⎜

No

⎜

No

⎜⎜

No

⎜

No

⎜

Yes

⎜

Yes

⎜

Yes

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜Computer Dialing

⎜⎜

Yes

Yes

Yes

⎜

Yes

⎜⎜

Yes

Yes

Yes

Yes

⎜

Yes

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

No

⎜

Yes

⎜

Yes

Yes

No

⎜

No

⎜

No

⎜

Yes

Yes

⎜Data Hot Line

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

Yes

Yes

Yes

⎜

Yes

⎜⎜

Yes

Yes

Yes

Yes

⎜

Yes

⎜

⎜

⎜

⎜

⎜

⎜

⎜Data Privacy/Data Protection

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜Data Restriction/Data Protection

⎜⎜

Yes

Yes

Yes

⎜

Yes

⎜⎜

Yes

Yes

Yes

Yes

⎜

Yes

⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜⎜

⎜

⎜

Yes

⎜

Yes

⎜

Yes

Yes

Yes

⎜

Yes

⎜

Yes

⎜

Yes

Yes

⎜Data Only Off-Premises Extension

⎜⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜⎜

⎜

⎜

⎜

⎜

⎜

computer port. In the administration of mnemonic dialing, one table that cross-references mnemonic names to telephone numbers is created and maintained on the switch.

Data Call Setup From a Voice Terminal

This features lets users dial the data endpoint from a voice terminal with an associated data module. This feature must be used in lieu of Terminal Dialing to establish connections for synchronous (for example, IBM 3274) terminals that do not have an RS-366 automatic calling unit (ACU) interface.

Computer Dialing

This feature makes it possible for a host computer to automatically dial a data endpoint. Hosts can originate data calls when their ports are equiped with data modules or modems that have an ACU. The hosts must also have software that manages call initiation and termination.

Data Hot Line

With this feature, the switch automatically dials a default number when the user presses the BREAK key at the terminal or the Originate/Disconnect bottom on the data module. This feature is an administrable option.