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Answer Back is an electrical and/or visual indication to the call originating end that the call terminating end is on the line. First associated with the International Telex network, answerbacks are also recommended in CCITT-standard fax machines and are provided in most PC data communications software packages.
 Research Answer Back
Area Code is colloquial term for a three or more digit number identifying one geographic area of a country providing for Direct Distance Dialling on the public telephone network system of that country. This entire system of numbers is under the umbrella of Country Code 01 in the World Numbering Plan of the CCITT.
Research Area Code
The CCITT (Comite Consultatif Internationale des Telephones et Telegraphes), is a major constituent of the International Telecommunications Union (ITU) that sets standards for the operation of telecommunications services across international boundaries. Many CCITT standards are adopted for use domestically.
Research CCITT
CHILL is a real-time programming language similar to Ada, developed by CCITT for the programming of computer-based telecommunications systems and computer-controlled telephone exchanges.
Research CHILL
Jpeg is a compressed bitmap image format intended for the digital storage of photographic images. Jpeg was developed by an organisation called the Joint Photographic Experts Group, comprising cooperation between the ISO and the CCITT. Jpeg features variable compression from very high, with a corresponding high loss of picture clarity, through to very low with very little loss of picture quality. Early complaints about Jpeg were that it's compression and decompression routines were slow, but these complaints have been annulled with the advent of faster computers.
Research Jpeg
MTBF (Mean Time Between Failure) is a statistical method developed and administered by the U.S. military for purposes of estimating maintenance levels required by various devices and systems. Since accurate statistics require a basis of 'failures per million hours of operation,' an MTBF estimate on a single device is not very accurate; it would take 114 years to see if the device really had that many failures! Similarly, since the
MTBF is an estimate of averages, half of the devices can be expected to fail before then, and half after. MTBF cannot be used as a guarantee. Telecommunications systems operate on the principle of ' Availability,' for which there is a body of CCITT Recommendations.
Research MTBF
In the sense of communications, a packet is a structured group of binary digits in a prearranged sequence containing synchronism, address, control an error-checking data. Specialised synonym for a 'block' of data in CCITT Packet Data Network standards.
Research Packet
CCITT is an abbreviation for Consultative Committee on International Telephony and Telegraphy
Research CCITT
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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Abbreviations
