Provisioning The Avaya 7406 Digital Mobile Handset; Operational Bandwidths - Avaya 7406 Installation Manual

Chapter 2

Provisioning the Avaya 7406 Digital Mobile Handset

This chapter provides specification and provisioning information for the Avaya 7406 Digital
Mobile Handset.
The Avaya 7406 digital mobile handset is a Frequency Hopping Spread Spectrum (FHSS) cordless
telephone. The benefits of this technology are: improved range, robustness and, less susceptibility
to interference, fading and multipath.
The use of a common wall-mounted base station for multiple handsets allows you to position the
base antennas for maximum performance and coverage. The indoor range of the Avaya Digital
Mobile Handset is 95 meters (300 feet) in a typical office environment. This range may vary with
differing environments.

Operational Bandwidths

The Avaya 7406 Digital Mobile Handset operates in the ISM (Industrial, Scientific, and Medical)
902-928 MHz band. The Avaya 7406 Digital Mobile Handset divides the ISM band into two sets
of operating frequencies to allow the coexistence of other ISM devices. Examples of these
products are SKU scanners and remote controls for products such as garage door openers and
home theatre systems. Note that, since the Avaya 7406 Digital Mobile Handset is a frequency
hopper, it uses at least half of the available frequencies in the ISM band for operation and can
make it difficult for other 900 MHz devices to operate correctly. The following table identifies the
frequencies used for the upper and lower bands of operation:
• Lower: 902 - 915 MHz
• Upper: 915.1 - 928 MHz
These bands are selectable for each base station through dip switches located on the back of the
Avaya 7406 Digital Mobile Handset base station. Each base station supports up to three handsets.
Selection of the correct band for operation may minimize interference between devices.
Operational Parameters
For example, with a configuration of six handsets, two base stations are required (three handsets
per base station). One base station will be set to the upper band, and the other base station will be
set to the lower band.
Another example is an environment that already contains another 900 Mhz device (e.g. a scanner
with 900 Mhz wireless connection to a LAN). In this environment, only one Avaya 7406 Digital
Mobile Handset base station should be installed. Set the Avaya 7406 Digital Mobile Handset base
station dip switch to the opposite band that the scanner is operating in.
Avaya 7406 Digital Mobile Handset — Installation Guide
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