telephony circuit

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• Circuit Switched Data — (CSD) is the original form of data transmission developed for the time division multiple access (TDMA) based mobile phone systems like Global System for Mobile Communications (GSM). CSD uses a single radio time slot to deliver 9.6 kbit/s data… …   Wikipedia

• Multimedia Telephony (MMTel) — The 3GPP/NGN IMS Multimedia Telephony Service (MMTel) is a global standard based on the IP Multimedia Subsystem (IMS), offering converged, fixed and mobile real time multimedia communication using the media capabilities such as voice, real time… …   Wikipedia

• Multimedia telephony — The 3GPP/NGN IP Multimedia Subsystem (IMS) multimedia telephony service (MMTel) is a global standard based on the IMS, offering converged, fixed and mobile real time multimedia communication using the media capabilities such as voice, real time… …   Wikipedia

• Wireless telephony — Wireless Wire less, a. Having no wire; specif. (Elec.), designating, or pertaining to, a method of telegraphy, telephony, or other information transmisssion, in which the messages, data, etc., are transmitted through space by electric waves; as,… …   The Collaborative International Dictionary of English

• Cable telephony — is a specialized form of digital telephony over cable TV networks accomplished by installing a special telephone interface at the customer s premises that converts the analog signals from the customer s in home wiring into a digital signal, which …   Wikipedia

• Cord circuit — In telecommunication, a cord circuit is a switchboard circuit in which a plug terminated cord is used to establish connections manually between user lines or between trunks and user lines. A number of cord circuits are furnished as part of the… …   Wikipedia

• System X (telephony) — System X was the name of the UK s first national digital telephone exchange system.HistorySystem X was developed by the UK Post Office (later to become British Telecom), GEC, Plessey, and Standard Telephones and Cables (STC), and first shown in… …   Wikipedia

• Engset calculation — The Engset calculation is a formula to determine the probability of congestion occurring within a telephony circuit group. It was named after its developer, T. O. Engset. The level of congestion can be used to determine a network s performance as …   Wikipedia

• Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …   Wikipedia

• Liste der Telekommunikationsstandards — Liste von Standards und Richtlinien aus der Telekommunikation. Inhaltsverzeichnis 1 ETSI 1.1 Nomenklatur 1.1.1 derzeit gültige Nomenklatur 1.1.2 vorherige Nomenklatur …   Deutsch Wikipedia

• Wardenclyffe Tower — (1901 ndash; 1917) also known as the Tesla Tower, was an early wireless telecommunications aerial tower designed by Nikola Tesla and intended for commercial trans Atlantic wireless telephony, broadcasting, and to demonstrate the transmission of… …   Wikipedia