Telephone Switching SystemsArtech House, 2000 - Počet stran: 859 Here is the definitive Bible on the architectures of the systems that provide telephone service, including a look at architectures for future systems. Describing in detail the hardware and software of four major systems widely used in the US today, plus two others commonly used worldwide, you get the comprehensive information you need to understand switching systems in historical context and in relation to regulatory frameworks. Plus, you see how factors such as customer services and modern computer applications have affected switching systems, and you get background discussions on relevant theory and boundary conditions -- such as transmission systems, telephone operation, and the human element. |
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analog architecture AT&T bandwidth Bell Labs Bell System block busy call processing calling party carrier channels Chapter circuit switching configuration connected connector cost Crossbar Crossbar switch crosspoints data rate described dial tone digital switching directory number discussed electronic equipment Erlangs fabric fiber Figure frame Gbps IEEE Communications Magazine implementation input integrated interconnected interface Internet interoffice ISDN junctor layer line circuit line finder logical long distance loop module multiplexed node off-hook operator optical optical fiber output packet switching pair party's path photonic photonic switching physical processor PSTN RBOCs relay requires ring SDCs Section selector stage servers signal Strowger switch subscriber subscriber's subsection subsystem switching office switching software switching systems telco Telecommunications telephone number terminal timeslot tip and ring toll point Touch Tone transmission transmitted trunk circuit trunk group typically voice wavelength wired
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Sensors, and Command, Control, Communications, and Intelligence (C3I ... Náhled není k dispozici. - 2003 |