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In telecommunications, a long-distance call (U.S.) or trunk call (also known as a toll call in the U.K. [citation needed]) is a telephone call made to a location outside a defined local calling area. Long-distance calls are typically charged a higher billing rate than local calls.
International telephone calls are those made between different countries. These telephone calls are processed by international gateway exchanges (switches). Charges for these calls were high initially but declined greatly during the 20th century due to advances in technology liberalization. Originally they were placed via long-distance operators.
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Satellite transmission adds a slight delay, which is noticeable even over transatlantic calls, though the call quality can be as good as a call over a fiber-optic cable. At the other end of the quality spectrum is a route using VoIP over the long-distance satellite link terminating in an ISP using a leaky PBX to terminate the calls.
The term 'STD call' was once commonly used in the UK, Ireland, Australia, India, and parts of Southeast Asia, but it may be considered archaic today, or possibly even no longer be understood. Other less technical terms like 'national calling,' 'long distance calling' and so on are now more commonly used.
The first direct-dialed long-distance telephone calls were possible in the New Jersey communities of Englewood and Teaneck.Customers of the ENglewood 3, ENglewood 4 and TEaneck 7 exchanges, who could already dial telephone numbers in the New York City area, could place calls to eleven major cities across the United States by dialing the three-digit area code and the seven-digit directory number.
An "international call prefix", "international dial-out code" or "international direct dial code" (IDD code) is a trunk prefix that indicates an international phone call. In the dialling sequence, the prefix precedes the country calling code (and, further, the carrier code, if any, and the destination telephone number).
There is also a local-rate service named "0-810" (cero ochocientos diez) where the calling party pays the fee for a local call and the called party pays for the long-distance fees. In Armenia, the toll-free prefix is "800" followed by a five-digit number. In Australia, the toll-free prefix is "1800" followed by a six-digit number. Calls are ...
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