Applications of Digital Enhanced Cordless Telecommunications (DECT)

Digital Enhanced Cordless Telecommunications technology is at the cusp of significant growth. This article discusses the various applications of this technology in the field of communications.

Much unlike the home-based cordless phones, Digital Enhanced Cordless Telecommunications (DECT) is a digital wireless telecommunications technology that is going to increasingly become common among residential and business users around the world. Just like the Global System of Mobile Communications (GSM), DECT too makes use of Time Division Multiple Access (TDMA) for the purpose of transmitting radio signals from one phone to another.

What is the Difference Between GSM and DECT?

The difference between the two systems, however, is that, while GSM is optimized for mobile travel across larger areas, DECT is developed to cater to a large number of users within smaller areas. This means that this technology can be used within corporate complexes, university campuses, etc. That said, a user can have a single telephone that is equipped to handle both GSM as well as DECT without any trouble.

Technical Requirements to Setup a DECT

The ETSI Standards documentation prescribes that developers use the G.726 standard codec, G.711, G.722 wideband, G.7291.1 wideband and the MPEG-4 LD AAC wideband and super-wideband as the audio codec in a DECT system. In addition to this, the net bit rate should be of 32 kbits/second.

Major Applications of DECT

Cordless Private Branch Exchange

With DECT, a company or institution can easily connect to a wired telephone company and then redistribute the signals using radio antenna to a larger number of users on the premises. Each one of these users can have their own unique number. More or less a cordless PBX system, this is especially useful in larger corporate complexes and proves to be cost saving for businesses with a large number of employees that are on the phone and mobile, for instance, in large warehouses.

Wireless Local Loop (WLL)

With the help of DECT technology, users within a neighborhood that use the same telephone company wired local loop can instead be connected with cordless phones. These phones exchange signals with the antenna within the neighborhood by simple being plugged into a fixed access unit (FAU). This is ideal for urban areas where there are large user bases sharing the same antenna.

Cordless Terminal Mobility

The arrangement recommended for businesses for the cordless PBX can also be used to provide individual subscribers with cordless phone numbers. However, the mobility would be relatively less than that offered by the GSM technology.

Home Cordless Phones

Homeowners, too, can choose to install a single-cell antenna at home and use it for multiple cordless phones around the house and even extend it into the garden, backyard and porch.

GSM/DECT Inter-Networking

The DECT standard describes at length how this technology can integrate with the GSM standard, allowing users to be free to move with their phones from an outdoor GSM signal to an indoor DECT system. Communications experts believe that many GSM service providers will be more than happy to expand their services to also support DECT signals within buildings. With the help of dual-mode telephone devices, one can automatically transfer between DECT and GSM connections based on availability.

Regardless of the application you intend to develop using DECT technology, make sure you gather sufficient information on G726 Codec among other codecs and technical features to make use of the best available options for enhanced performance.

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If you want to know about G729 codec specification, the author of this article recommends CodecPro.