Understanding DECT Phones: Basics and Applications

This page covers the fundamentals of DECT phones, including an application note and a list of DECT phone manufacturers. A DECT phone is simply a phone that operates according to the DECT (Digital European Cordless Telephone) standard specifications.

The standard defines the air interface between the base unit and the mobile phone unit.

Here are the key characteristics of a DECT phone:

• Frequency: Operates in the 1880 to 1900 MHz band.
• Channels: Supports 120 full-duplex channels.
• Modulation: Employs GMSK (Gaussian Minimum Shift Keying) modulation.
• Power Output: Typically 10mW on average.
• Range: Approximately 50 meters indoors and 300 meters in open space.

For a more in-depth understanding, refer to a DECT tutorial which delves into the DECT frame structure, protocol stack, and more.

DECT Phone Application

As illustrated in the figure, a DECT system consists of two primary components: a DECT base unit and a DECT phone handset. The DECT phone communicates with the base unit using DECT air interface protocols, adhering to the DECT protocol stack.

Typically, the DECT phone unit is placed on a charging stand, which provides continuous power. The DECT base unit is connected to a fixed telephone network, such as PSTN or ISDN. This allows DECT-compliant wireless phones to communicate with devices on the fixed telephone network.

Vertical Communications DECT Phones

Vertical Communications, Inc. is a manufacturer of both DECT phone units and DECT base units. Their DECT phones offer the following specifications and features:

• Compatibility with IP-based systems.
• Roaming range of up to 5000 feet with the use of 5 wireless repeaters.
• A 2-line LCD display with 16 digits per line.
• 4 function keys and 4 one-touch dial keys.
• Headset jack and headset volume control.
• Ringer alert and ringer volume control.
• Speakerphone option and backlit display.

DECT Phone Manufacturers/Vendors

Here’s a list of some DECT phone manufacturers, including those offering DECT 6.0 cordless landline phone systems:

• Panasonic (Models: KX-TG2358, KX-TG8051, KX-TG6511)
• Beetel (X67 cordless landline phone)
• Gigaset A220
• Uniden AS1002 DECT 1.8
• Yealink SIP-W52P (DECT VOIP phone), Yealink SIP-W52H (DECT base station)
• Grandstream DP715
• snom m9r
• Cisco SPA302D-KIT
• Spectralink 7740 DECT handset
• Avaya DECT wireless phones (Models: 3725/3720)