User`s manual

Introduction
Data Features
Asynchronous full-duplex operation at data rates from 1200 bits per
second (bps) to 57.6 kilobits per second (kbps) through an EIA-232
interface.
X.25 packet switched data communication including receipt of X.29
commands from a remote X.25 host for setting packet switched data
parameters.
Circuit switched data communication over 56 or 64 kbps facilities via
industry standard V.120 rate adaption protocol.
Circuit switched data communication over 64 kbps facilities via AT&T’s
Digital Multiplexed Interface (DMI) Mode 2 or Mode 3 rate adaption
protocols.
8510 and 8528 display terminals — Four softkeys and four display control
buttons located below a 2-line by 24-character liquid crystal display can be
used to access data features such as view current options, change
options, answer a data call, place a data call, and reset a locked data set.
8520 display terminal — Ten softkeys and four display control buttons
located to the left and right of a 7-line by 24-character liquid crystal display
can be used to access data features such as view current options, change
options, answer a data call, place a data call, and reset a locked data set.
Note, the first two lines of the 7-line display contain switch information; the
remaining five lines contain softkey information.
A user friendly command interface with on-screen help, nine
programmable named data memory numbers, and four programmable
data option profiles.
A standard AT command set interface for compatibility with applications
which require this command format.
Remote and local loopback tests.
Voice Terminal Control Features
With the ADM, your 8500 series display terminal also features the Application
Programming Interface (API). This interface allows PC communications software
to be used to enhance the operability of your ISDN set. For example, the API
allows a PC communications package complete control of your ISDN set, from
dialing a voice call to answering a voice call.
Some of the many things an application program running in a PC can accomplish
through the API include:
A ‘‘call screening’’ feature that examines the calling party’s number and
uses a distinctive ring based on who is calling. This allows prioritization of
your incoming calls.
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