User manual

DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Managing data calls
397Data Call Setup
15
ISDN-BRI data modules
Data-terminal dialing
A user can set up and disconnect data calls directly from a data terminal without
using a telephone as follows:
1. The user presses
ENTER a few times. If the CMD: prompt does not appear,
the user presses
BREAK A + T at the same time, and then presses ENTER.
2. At the CMD: prompt, the user types and presses
ENTER.
3. To disconnect, the user enters +++. At the CMD: prompt, the user types
end and presses
ENTER.
Telephone dialing
To make a data call, an ISDN-BRI phone user presses the data button on the
terminal, enters the number on the dial pad, and then presses the data button again.
The following data functions are not available on ISDN-BRI phones:
■ One-Button Transfer to Data
■ Return-to-Voice
■ Data Call Preindication
■ Voice-Call Transfer to Data and Data-Call Transfer to Voice
The system handles all presently defined BRI bearer data-call requests. Some
capabilities that are not supported by Lucent terminals are provided by
non-Lucent terminals. If the switch does not support a capability, a proper cause
value returns to the terminal.
BRI terminals receive a cause or reason code that identifies why a call is being
cleared. The BRI data module converts certain cause values to text messages for
display.
In a passive-bus multipoint configuration, the system supports two BRI endpoints
per port, thus doubling the capacity of the BRI circuit pack. When you change the
configuration of a BRI from point-to-point to multipoint, the original endpoint
does not need to reinitialize. Only endpoints that support service profile identifier
(SPID) initialization can be administered in a multipoint configuration.
Analog modems
When a telephone user places a data call with a modem, the user dials the
data-origination access code assigned in the system before dialing the endpoint.