Owner's Manual
EXP1240 Admin Guide, Version 2.0
Proprietary and Confidential
Chapter: Introduction – System Overview
10
2.2 Components of EXP1240 System
UNIDEN EXP1240 System is made up of (but not limited to) the following components:
• At least one UNIDEN Base Station is connected over an IP network and using DECT as air-core interface.
• UNIDEN IP DECT wireless Handset.
• UNIDEN EXP1240 Configuration Interface; is a management interface for EXP1240 Wireless Solution. It
runs on all IP DECT Base stations. Each Base station has its own unique settings.
2.2.1 UNIDEN Base Stations
The Base Station converts IP protocol to DECT protocol and transmits the traffic to and from the end-nodes
(i.e. wireless handsets) over a channel. It has 12 available channels.
In a multi-cell setup, each base station has:
• 8 channels have associated DSP resources for media streams.
• The remaining 4 channels are reserved for control signalling between IP Base Stations and the SIP/DECT
end nodes (or phones).
Base Stations are grouped into clusters. Within each Cluster, Base Stations are synchronized to enable a
seamless handover when a user moves from one base station coverage to another. For synchronization
purposes, it is not necessary for Base Stations to communicate directly with each other in the system. E.g. a
Base Station may only need to communicate with the next in the chain. It is advisable for a Base Station to
identify more than one Base Station to guarantee synchronization in the situation that one of the Base
Stations fails.
The 4 control signalling channels are used to carry bearer signals that enable a handset to initiate a
handover process.
2.2.2 EXP1240 Administration Server/Software
This server is referred to as EXP1240 Configuration Interface.
The EXP1240 Configuration Interface is a web based administration page used for configuration and
programming of the base station and relevant network end-nodes. E.g. handsets can be registered or de-
registered from the system using this interface.
The configuration interface can be used as a setup tool for software or firmware download to base stations,
repeaters and handsets. Further, it is used to check relevant system logs that can be useful to
administrator. These logs can be used to troubleshoot the system when the system faces unforeseen
operational issues.
2.2.3 UNIDEN Wireless Handset
The handset is a lightweight, ergonomically and portable unit compatible with Wideband Audio (G.722),
DECT, GAP standard, CAT-iq audio compliant.
The handset includes Colour display with graphical user interface. It can also provide the subscriber with
most of the features available for a wired phone, in addition to its roaming and handover capabilities. Refer
to the relevant handset manuals for full details handset features.
2.3 Wireless Bands
The bands supported in the EXP1240 are summarized as follows:
Frequency bands: 1880 – 1930 MHz (DECT)
1880 – 1900 MHz (10 carriers) Europe/ETSI
1910 – 1930 MHz (10 carriers) LATAM
1920 – 1930 MHz (5 carriers) US










