Dect

Heather BuettnerTED 111

DECTDigital Enhanced Cordless Telecommunications

Background Information and History

Background and History

What is DECT?

Digital Enhanced Cordless Telecommunications

DECT is a standard for digital wireless telephone technology

DECT History

developed January 1988 by the ETSI

ETSI (European Telecommunications Standards Institute) developed DECT by combining CT2 and CT3

Background and History

DECT was first known as Digital European Cordless Telecommunications

DECT changed to its current name to reflect global acceptance

The first DECT was the Siemens Gigaset 900 telephone in 1992

First ETSI standards of DECT were ETS 300 175 and 300 176

Functionality

Functionality

How Does DECT Function?

It is high speed quality, low power technology

Low risk of radio interference

Uses time division multiple access (TDMA) to transmit the radio signals to DECT phones

DECT phones work from a base station with a handset

Functionality

5 Major Applications of DECT

1) Cordless Private Branch Exchange (PBX)

2) Wireless Local Loop (WLL)

3) Cordless Terminal Mobility

4) Home Cordless Phones

5) GSM/ DECT internetworking

Usage In Society

Usage in Society

Used for residential and business purposes

DECT is used in many countries such as the U.S., Italy, and the U.K.

In 2002 Bluetooth was created

Bluetooth uses short range wireless data applications

Usage in Society

DECT Solutions

Usage in Society

Home Solutions

Residential areas are the largest application area

Usage in Society

Fax, PC, telephones, as well as PC and telephone wireless devices are connected by a fixed access unit

PTSN- Public Switched Telephone Network

PSTN access allows 6-10 handsets t be used externally and for intercom access

Usage in Society

Office Solutions

DECT capacity is high and supports more than 10.000 Erlang per floor square kilometer

Usage in Society

Office Solutions

Main application area for DECT is seamless handover

No separate base station controller

DECT is cost efficient

Usage in Society

Enterprise Solutions

Typical data services are paging, group calls, automatic alarms, and many others

DECT provides laptop PC wireless access to LAN

Provides cordless solutions for System Integrators

Usage in Society

Public Solutions

DECT provides high capacity WLL services

Usage in Society

Public Solutions

WLL supports voice telephony, ISDN, and internet user data

This provides user access data up to a few hundred of kbps (kilobit per second)

Usage in Society

Industrial Solutions

DECT applications provide supervision and control needs in a variety of ways

Authenticating- base station and handset handshake using specific rules and calculations

Encryption- the digital data is encrypted and then is decrypted when it is received by the intended receiver

Future Outlook

Future Outlook

The digital cordless telephone market is moving to new countries

Use of DECT modules in security systems are replacing wired systems in buildings

DECT security system applications will be used for homes

DECT use for data/ multimedia on the web

References

References

DECT Forum◦http://www.dect.org/content.aspx?id=18

Digital Enhanced Cordless Communications◦http://

en.wikipedia.org/wiki/Digital_Enhanced_Cordless_Telecommunications

References

What is DECT?◦http://www.dectweb.com/Introductions/answers.

htm

What is a DECT phone?◦http://wisegeek.com/what-is-a-dect-phone.htm

References

DECT Security◦http://

uswww03.gnnetcom.com/jabra/cc_stream/white/DECT_Security.pdf

Thank You!