Encyclopedia - Telephone: Encyclopedia - Telephone
The telephone or phone (Greek: tele = far away and phone = voice) is a telecommunications device which is used to transmit and receive so...   » Read the article

Encyclopedia - Telephone: Encyclopedia Ii - Telephone - Voip Telephony
Also known as Internet telephony or Voice over IP (VoIP), digital telephony is a disruptive technology that is rapidly replacing traditio...   » Read the article

Encyclopedia - Telephone: Encyclopedia Ii - Telephone - History
The very early history of the telephone is a confusing morass of claim and counterclaim, which was not clarified by the huge mass of laws...   » Read the article

Encyclopedia - Mobile Phone: Encyclopedia - Mobile Phone
A mobile phone, also known as a cellular, cell, mobile, or hand phone, is an electronic telecommunications device with the same basic cap...   » Read the article

Encyclopedia - Communications In Japan: Encyclopedia - Communications In Japan
Japan currently possesses one of the most advanced communication networks in the world. Communications in Japan - Telephone. Telephones ...   » Read the article

Encyclopedia - Cincinnati Bell: Encyclopedia - Cincinnati Bell
Cincinnati Bell is the dominant telephone company for Cincinnati, Ohio and its nearby suburbs in Ohio, Indiana and Kentucky. The parent c...   » Read the article

Encyclopedia - Two-way Radio: Encyclopedia - Two-way Radio
A two-way radio is simply a radio that can both transmit and receive (a transceiver). Portable two-way radios are often called walkie-tal...   » Read the article

Encyclopedia - Blackberry: Encyclopedia - Blackberry
The BlackBerry is a wireless handheld device which supports e-mail, mobile telephone, text messaging, web browsing and other wireless inf...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - Cellular Telephony
Another common example of a cellular network are mobile phone networks. A mobile phone is a portable telephone which receives or makes ca...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - General Characteristics
The primary requirement for a network in the cellular concept is a way for each distributed station to distinguish the signal from its ow...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - Broadcast Messages And Paging
Practically every cellular system has some kind of broadcast mechanism. This can be used directly for distributing information to multipl...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - Frequency Reuse
The increased capacity in a cellular network, comparing to a network with a single transmitter, comes from the fact that the same radio f...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - Cell Coverage Area
The ideal cellular network, shown in textbooks, has hexagonal cells would want to cover such an area. In practise, cell coverage varies c...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - Movement From Cell To Cell And Handover
The use of multiple cells means that, if the distributed transceivers are mobile and moving from place to place, they also have to change...   » Read the article

Encyclopedia - Cellular Network: Encyclopedia Ii - Cellular Network - General Characteristics
The primary requirement for a network in cellular concept is a way for the distributed stations to distinguish the signal from its own tr...   » Read the article

Encyclopedia - Emergency Telephone Number: Encyclopedia Ii - Emergency Telephone Number - Emergency Numbers And Mobile/wireless/cellular Telephones
The GSM mobile phone standard includes 112 as an emergency number, no matter what other local emergency number are applicable. This is va...   » Read the article

Encyclopedia - Mobile Phone: Encyclopedia Ii - Mobile Phone - Terminology
Mobile phone - Mobile phone terms. Brick  A large, heavy, and usually obsolete wireless mobile phone, such as the Motorola Intern...   » Read the article

Encyclopedia - Emergency Telephone Number: Encyclopedia Ii - Emergency Telephone Number - Emergency Numbers By Region
There is no world-wide emergency number. Emergency telephone number - Africa. Chad: Fire: 18, Police: 17 Djibouti: Fire: 18, Police: 1...   » Read the article

Encyclopedia - Telephone Booth: Encyclopedia Ii - Telephone Booth - Recent Developments
The increasing use of cellular phones has led to a decreased demand for pay telephones, but the increasing use of portable computers is l...   » Read the article

Encyclopedia - Communications In Japan: Encyclopedia Ii - Communications In Japan - Telephone
Telephones - main lines in use: 60.3 million (1997) Telephones - mobile cellular: 88.1 million (July 2004) Telephone system: excellent do...   » Read the article

Encyclopedia - Cellular Film: Encyclopedia Ii - Cellular Film - Plot
Jessica (played by Basinger), a high-school biology teacher, is taken from her home by five assailants to an unknown location. Not knowin...   » Read the article

Encyclopedia - Communications In Argentina: Encyclopedia Ii - Communications In Argentina - Telephone And Internet Services
The Argentine telephone system is modern following privatization in the 1990s, and more recently market deregulation. However many famili...   » Read the article

Encyclopedia - Communications In Iraq: Encyclopedia Ii - Communications In Iraq - Telephone System
The 2003 war severely disrupted telecommunications throughout Iraq, including international connections. USAID is overseeing the repair o...   » Read the article

Encyclopedia - Enhanced 911: Encyclopedia Ii - Enhanced 911 - Wireless Enhanced 911
A second phase of Enhanced 911 service is to allow a wireless or mobile telephone to be located geographically using some form of radiolo...   » Read the article

Encyclopedia - Communications In Australia: Encyclopedia Ii - Communications In Australia - Telephony
Australia's main line telephony network relies primarily on an optical fibre networks, with copper lines connecting households to local e...   » Read the article

Encyclopedia - Wi-fi: Encyclopedia Ii - Wi-fi - Wi-fi Vs. Cellular
Some argue that Wi-Fi and related consumer technologies hold the key to replacing cellular telephone networks such as GSM. Some obstacles...   » Read the article

Encyclopedia - Blackberry: Encyclopedia Ii - Blackberry - Hardware
The devices are manufactured by the Canadian company Research In Motion (RIM) and are resold by cellular phone companies throughout the w...   » Read the article

Encyclopedia - Get Smart: Encyclopedia Ii - Get Smart - Gadgets
Smart would communicate with CONTROL using a rotary telephone concealed in his shoe. While it is decades ahead of its time in real life, ...   » Read the article

Encyclopedia - North American Numbering Plan: Encyclopedia Ii - North American Numbering Plan - Cellular Services And The Nanp Numbering Scheme
A difference between the NANP system and other plans is that apart from area code 600 in Canada, no separate, non-geographical area codes...   » Read the article

Encyclopedia - North American Numbering Plan: Encyclopedia Ii - North American Numbering Plan - Expansion Of Area Codes
Due to a combination of increasing demand for telephone services (particularly due to widescale adoption of fax and cell phone communicat...   » Read the article

Encyclopedia - Digital Signal 1: Encyclopedia Ii - Digital Signal 1 - Real World Use
Before the jump in Internet traffic in the mid 1990's, DS1's were found almost exclusively in the telephone company central office as a m...   » Read the article

Encyclopedia - North American Numbering Plan: Encyclopedia Ii - North American Numbering Plan - History
In order to facilitate direct dialing calls, the NANP was created and instituted by AT&T, then the U.S. telephone monopoly, in 1947. ...   » Read the article

Encyclopedia - North American Numbering Plan: Encyclopedia Ii - North American Numbering Plan - Future Expansion Of Nanp
The North American Numbering Plan Administration (NANPA) is now overseen by NeuStar Inc., who will face the task of adding at least one o...   » Read the article

Encyclopedia - Telephone: Encyclopedia Ii - Telephone - Introduction
There are four principal means by which an end user using a telephone handset may connect to a telephone network: a traditional fixed pho...   » Read the article

Encyclopedia - Telephone: Encyclopedia Ii - Telephone - Wireless Phone Systems
While the term "wireless" means radio and can refer to any telephone that uses radio waves it is primarily used for cell phones. In the U...   » Read the article