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`
`A Glossary of
`Teiecom Acmnyms,
`Terms and Jargcn
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`
`
`edited by Harry Newton
`j
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`PMC Exhibit 2144
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`Apple v. PMC
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`PMC Exhibit 2144
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`The TELECQNNEC‘E‘ Dieiionery
`Arr Expienetien oi Teieeemmunieeiiene
`ierrrre, Acronyms and Jergee
`
`The TELECGNNECT Guide To Series includes:
`The TELECONNECT Guide io:
`Automatic Cali Distributors
`Business of interconnect
`How to sell Cali Accounting
`1m Money~Saving Secrets Your Phone Company Won’t Teii You
`Professionai Seiiing
`Profit and Controi Through Cali Aooouniing
`Teiecommunica‘iions Management For Business and Government
`T-‘i Networking
`Which Phone System Shouid i Buy?
`
`TELECGNNEC‘T Magazine
`A montth telecommunications magazine. You may subscribe for $15 a
`year. Caii in your subscription and book orders (with your credit card number)
`to 1-800»LIBRARY.
`
`FREE Cetaiogs oi “i'eiecom, LAN anti Pc Books
`Telecom Library, our parent company, distributes The TELECONNECT
`Guide To series and 106 other books in the telecommunications and data
`communications industry. The Teiecom Library is the industry’s centre! source
`of books and publications. You may receive a FREE copy of our latest
`oateiogs by caiiing 212-691-8215 or by dropping a iine to Raiph Fiorido at the
`address below.
`
`Quantity Purchases
`if you wish to purchase this, or any other books in quantity, piease
`contaci:
`
`Ralph Fiorido, Manager
`Teiecom Library Inc
`12 West 21 Street
`New York, NY 10010
`i—SOO—LiBRARY or 212-691-8215
`
`Copyright ©1987 by Harry Newton and The Teiecom Library Research Group.
`Ail rights reserved.
`Printed in the USA. by Bookcrariers, Cheisea, Mi
`
`PMC Exhibit 2144
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`Apple v. PMC
`|PR2016-00755
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`PMC Exhibit 2144
`Apple v. PMC
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`TELECGNNEC’T DECTEQNARY
`
`have been spied for under $‘i,000. From the tirst portabie units,
`weight has aireaciy dropped by more than hsit. There’s st teest one
`unit that wilt fit in your breast pocket and not overly stretch your suit.
`
`flfihhuhfifl fififltfi $W§§®fiih§$ @Ffififi: The eiectronic
`switching office which switches celis between ceiloiar (mobiie)
`phones and wireline (Le. normal wired) phones. The switch controls
`the “hendoti” between coils and monitors usage. Different manuteo
`torers ceii their equipment different things, as usual.
`
`QEN‘EEE. €®RP® TEQN: An independent teiephone company
`serving over one miliion customer tines. it’s based near the Chicago
`{Tl-tare Airport.
`
`fiEN'FRAEE @FFWE: Telephone company facility where
`subscribers lines are joined to switching equipment for connecting
`other subscribers to each other, locaily and long distance. Aiso celied
`€36, as in See—Ooh.
`
`hfiflffififi. @hfififi BAWERY: A group of wet coils joined in
`series to provide 48 volts DC. Central office batteries are typloeliy
`charged off the main 126 volts AC. The batteries do two basic tone»
`tions: t. Provide a constant source of DC power tor 8 hours or so
`after AC powers drops, and 2. isolate the central cities from gilt—
`ches on the AC line.
`
`@ENERAL PR®€E$$ENG RENEE: CH}. The part of a computer
`which has the logic, computationai and decision-making. it inter—
`prets and executes instructions as it receives them. Personei corn—
`puters have one CPU —— typically a singie chip. it is the so-csiieo
`“computer on a chip.” That chip identities them as an 8-bit, 16bit
`or 32—bit machine.
`
`Telephone systems are not that different, especieliy smelter
`ones. Typicaiiy they have one main CPU «- a chip. That chip con-
`trols the various functions in the telephone“ Today’s teiephone’s
`systems are in reeiity nothing more than specie} purpose computers.
`As phone systems get bigger, the question of CPUs ~— centrai pro-
`cessing units —— becomes harder to figure, The design of phone
`systems has, of tote, tended away from single processorncontroiieci
`telephone systems (as in single processor controiled PCs). There
`are severai reasons for this move. First, it’s more economical for
`growth. Make modules of “littie” switches and join iittie ones together
`to make big ones. Second, it’s more reliebie. it’s obviously better
`not
`to rely on one big CPU. But
`to have several.
`in short,
`
`8‘?
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`PMC Exhibit 2144
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`PMC Exhibit 2144
`Apple v. PMC
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`“FELECQNNECT DECTEONARY
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`the issue of Central Processing Units ~ CPUs ~ is blurring. But
`the concept is still important. Because ~ by understanding how
`your telephone switch works (its architecture) ~ you will unders-
`tand its strengths and weaknesses.
`
`fififlffifikifififi fliflfiflfl'flfi Mfifififififi Afifififififlhfifi:
`CAMA. "the recording of toll calls at a centralized point.
`
`fififl’fi'fifix: Centrex is a business telephone service offered by a
`local telephone company from a local central office. Centrex is
`basically single line telephone service delivered to individual desks
`(the same as you get at your house) with important “bells and
`whistles,” i.e. features. added. Those “bells and whistles” include
`features like intercom, call forwarding, cell transfer, toll restrict, least
`cost routing and call hold (on single line phones).
`Think about your home phone. You can often get “Custom Call»
`ing” features. These features are typically iourlold: Call forwarding,
`Call Waiting, Call Conferencing and Speed Calling. Centrex is
`basically Custom Calling, but instead of tour ieatures,
`it has 19
`features, and more. Like Custom Calling, Centrex ieatcres are pro-
`vided by the local phone company’s central office. Centrex is leas-
`ed to businesses by the local phone company as a substitute for
`that business buying its telephone system ~ its own PBX or a key
`system.
`Before Divestiture, Centrex was presumed dead. AT&T was in-
`tent on becoming a major PBX and key system supplier. Then
`Divestiture came, and the operating phone companies recognized
`they were no longer part of AT&‘l’, no longer had factories to sup-
`port, but did have a huge number of Centrex installations, which
`were providing large monthly revenues. As a result the local
`operating companies have injected new life in Centrex, making the
`service more attractive in features, price, service and attitude. Here
`are the main reasons businesses go with Centrex as against going
`with a stand—alone telephone system:
`1. Money. Centrex is typically cheaper to get into (the central
`office already exists). installation charges can be low. Commitment
`can also be low, since most Centrex service is leased on a month-
`toamonth basis. So it’s perfect for companies planning an early move.
`There may be some economies of scale, also. Some phone com-
`panies are now offering low cost, large size packages.
`2. Multiple locations. Companies with multiple locations in the
`same city are often cheaper with Centrex than with multiple private
`phone systems and tie lines, or with one private phone system and
`OPX lines.
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`88
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`PMC Exhibit 2144
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`Apple v. PMC
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`Apple v. PMC
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