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Chapter 11 Installing telephones and peripherals 147
Installation and Maintenance Guide
DECT sets are ISDN sets, and use the DN range of 597 to 624 with DN type ISDN and DECT. If
you require more than 28 DECT handsets, use DNs from the Companion range and change the DN
type to ISDN and DECT. The Unified Manager provides a DECT Wizard that helps you
coordinate the handset DNs between the Business Communications Manager and the DECT
module. Refer to the DECT Installation and Configuration Guide for details about using the
Wizard.
“Mobility services by region” on page 237 lists the regions that can accommodate DECT.
The following documentation is available for this system:
•The Nortel Networks M626x DECT Deployment Tool guide is available on the Business
Communications Manager CD. Use the information in this guide to determine the most
effective locations within your site for the base stations.
• Each handset also comes with a user guide that describes the handset features.
•The Business Communications Manager DECT Installation and Maintenance Guide, also on
the CD, describes the installation of the module and radio base station, and how to register the
handsets to the Business Communications Manager.
T7406 cordless systems
The T7406 cordless system consists of a base station that connects to three ports on a Business
Communications Manager DSM, providing a radio interface for three cordless handsets. The
cordless handsets register to the base station, which transfers the call over the telephone lines
connected to the system. The handsets are configured to emulate the T7316/M7310 telephone
features. This system is most suited to small to medium office environments set up in an open
fashion.
T7406 cordless telephones use the DNs for the ports on the station module that the base station is
connected to. They are digital sets and use M7310/T7316 as an operational model.
The T7406 Cordless Telephone Installation Guide provides:
• deployment parameters
• a description of the handset features
• instructions for installing the base station
• instructions on how to correctly charge the handset battery
• general operational directions, including describing special operational features of the handset
Note: On systems upgraded from 2.0 to 2.5, with three-digit DNs starting at DN 221,
DECT handsets default to the 501 to 532 DN range.
These numbers are based on systems with three-digit DNs that use the default DN of 221.
If you change either of those settings on your system, adjust the numbering accordingly.