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i2021 ISDN Telelset
1
INTRODUCTION
ISDN i2021 S/T Telesets
Thank you for purchasing the i2021 voice only Integrated Services Digital
Network (ISDN) Teleset. This Teleset meets the highest standards of
quality to give you years of excellent service. The i2021 works with your
local service provider to give you advanced, easy-to-use features. It is
compliant with National ISDN 1,2 and 3 standards.
About This Manual
This manual contains the following information about your new ISDN
Teleset:
n Features
n Installation
n Setup
n Voice User Operations
n Troubleshooting
i2021 S/T TELESET
This Teleset connects to an ISDN Basic Rate S/T interface, which may
require an external NT1 (Network Terminator). Your local telephone
equipment provider may furnish this device.
FEATURES
The i2021 Teleset offers an extensive list of features. They include the
following:
n CROSS-COMPATIBILITY
The Telesets work with several different switches: the Lucent
Technologies 5ESS
®
(National ISDN), the Nortel DMS-100
®
(National
ISDN), the Siemens EWSD
®
(National ISDN), and the AG
Communication Systems GTD-5
®
.
n PROGRAMMABLE FEATURES AND OPTIONS
An extensive array of options/features may be provisioned via menus.
n PROGRAMMABLE HARDKEYS
These keys are used for Call Appearances, access to Speed Dialing
lists, and Dial Access Codes. The i2021 has 16 programmable
hardkeys.
n FIRMWARE UPGRADES
Your Teleset can always have the latest software features. The i2021
Teleset uses flash memory to download the current firmware. This is
done through the SIM connector, via a local server.