Talkswitch 48 user manual Glossary 133

Digit

Any whole number from 0 to 9. The numbers on your telephone keypad can also be referred to as digits.

Digital

Digital devices (phones, answering machines, etc.) convert analog sine waves into digital signals (a combination of zeroes and ones) for storage and/or transmission over digital lines.The digital signal is then converted back to analog sine waves, that can be heard by human ears.

Digitize

To translate into a digital form. For example, optical scanners digitize images by translating them into bit maps. It is also possible to digitize sound, video, and any type of movement. In all these cases, digitization is performed by sampling at discrete intervals. To digitize sound, for example, a device measures a sound wave's amplitude many times per second. These numeric values can then be recorded digitally.

Distinctive Ring

The ability to have more than one telephone number that callers can dial to reach the same telephone line. Each Distinctive Ring number has a distinctive ring cadence or ring sequence. TalkSwitch recognizes Distinctive Ring 1 as 2 short rings. Distinctive Ring 2 is identified as 3 short rings. (Distinctive Ring is also referred to as: Ident-A-Ring, Ident-A-Call, Ring Master, Teen Service, Double Number, Personal Ringing, Ring Plus, Smart Ring Service, Special Ring or Customized Ringing).

Driver

A program that controls a device. Every device, whether it is a printer, disk drive, or keyboard, must have a driver program. A driver acts like a translator between the device and programs that use the device.

DSP

Digital Signal Processing. Refers to manipulating analog information, such as sound or video that has been converted into a digital form.

DTMF

Dual Tone Multi-Frequency. The system used by touchtone telephones. DTMF assigns a specific frequency, or tone, to each key so that it can easily be identified by a microprocessor.

EEPROM

TalkSwitch's feature settings (configuration) are stored in EEPROM which is a form of non-volatile memory. This means that the feature settings (configurations) remain in TalkSwitch's memory despite interruptions in TalkSwitch's power supply.

Extended AT Commands

An extension of the standard AT Command Set that is specific to TalkSwitch. The extended command is indicated by an '!' (e.g. AT!TS).

Extension (Local)

A Local Extension is any telephone or analog device (answering machine, fax, etc.) that is plugged into one of the 'Extensions' jacks located on the back panel of your TalkSwitch.

Extension (Remote)

A call forwarding number that can be any telephone number, in any location.

FCC

Federal Communications Commission. The FCC is the United States federal regulatory agency responsible for the regulation of interstate and international communications by radio, television, wire, satellite and cable.

Glossary

133