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Chapter 11 Install Telephones and Peripherals 247
Installation and Maintenance Guide
The following documentation is available for this system:
• A site survey is required before you can install this system. When you purchase the
Companion system, you are provided with deployment documentation that will assist you in
planning base station locations.
• Refer to Chapter 12, “Install Companion or DECT Systems,” on page 249 for installation
instructions.
• The handset vendors provide a user guide with each set that describes the handset features.
DECT Systems
A DECT media bay module provides a pathway for a maximum of 32 cordless handsets to access
the Business Communications Manager. The handsets can either be twinned with stationary sets,
or they can act as independent sets.
Up to eight base stations can be deployed around a site. Each base station connects to a port on the
DECT media bay module, which provides both trunk (BRI) and station module functions. The
handsets are registered to the base station, but they can also roam between base stations.
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 documentation for details about using the Wizard.
“Mobility services by region” on page 269 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 3.0 DECT Installation and Maintenance Guide, also
on the CD, describes the installation of the module and radio base station, and how to
configure the system to the Business Communications Manager.
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.