A telephone number is a unique sequence of digits assigned to each telephone subscriber station, telephone line, or since the advent of digital telephony to an electronic telephony device, such as a mobile telephone. The telephone number serves as the address to switch telephone calls using a system of destination routing. It is entered or dialed by the calling party on the originating telephone set which transmits it in the process of signaling to a telephone exchange which completes the call either to another locally connected subscriber or via the public switched telephone network (PSTN) to the called party.
The concept of using telephone numbers instead of subscriber names when connecting calls was developed and first used between 1879 and 1880 in Lowell, MA, for the purpose of ease of training new telephone operators.
Switchboard of Miami, Inc., commonly referred to as Switchboard, is a private, nonprofit and registered 501(c)(3) organization located in Miami, Florida, United States that provides Miami-Dade County with comprehensive telephone counseling and referral services to thousands of social service programs. Crisis hotlines managed by the organization are available 24 hours a day, 7 days a week, 365 days a year. The organization also offers counseling services and prevention programs, such as initiatives aimed at assisting high-risk youth and their families through partnerships with local schools. Since 1968, these services have been offered to the community at no charge. Callers can seek advice confidentially, as no information is needed by the company in order to receive the services.
The organization maintains a HELPline Services Department that is certified by the American Association of Suicidology, licensed by the Florida Department of Children and Families (DCF) and accredited by the Alliance of Information and Referral Systems.
All-number calling (ANC) is a telephone numbering plan that was introduced by the Bell System in the United States starting around 1958 to replace the previous system of using a telephone exchange name as the first part of a telephone number.
Until the 1950s, a typical telephone number in the United States and many other countries consisted of a telephone exchange name and a 4 or 5-digit subscriber number. The first two or three letters of the exchange name translated into digits given by a mapping typically displayed on the telephone's rotary dial by grouping the letters around the assigned digit. The table (right) shows the typical assignment in the Bell System in use until the late 1950s. The letter Q was not used, and Z was translated to 0 (zero) on some dials, albeit never used in the name system. For example, a New Yorker's phone number might have been CHelsea 4-5034, which another telephone subscriber would dial as the digit sequence 2445034, translating C into 2, and H into 4.
Electronics engineering, or electronic engineering, is an engineering discipline where non-linear and active electrical components such as electron tubes, and semiconductor devices, especially transistors, diodes and integrated circuits, are utilized to design electronic circuits, devices and systems, typically also including passive electrical components and based on printed circuit boards. The term denotes a broad engineering field that covers important subfields such as analog electronics, digital electronics, consumer electronics, embedded systems and power electronics. Electronics engineering deals with implementation of applications, principles and algorithms developed within many related fields, for example solid-state physics, radio engineering, telecommunications, control systems, signal processing, systems engineering, computer engineering, instrumentation engineering, electric power control, robotics, and many others.]verification needed[
The Institute of Electrical and Electronics Engineers (IEEE) is one of the most important and influential organizations for electronics engineers.
In journalism, a human interest story is a feature story that discusses a person or people in an emotional way. It presents people and their problems, concerns, or achievements in a way that brings about interest, sympathy or motivation in the reader or viewer.
Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.