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الموضوع: اهداءات مصطلحات مفيده جدا لاحلي منتدي الجيم فلاش

  1. #1
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    افتراضي اهداءات مصطلحات مفيده جدا لاحلي منتدي الجيم فلاش

    اسمحوا لي اخواني في الجيم ان اهديكم بهذه المصطلحات والتي اتمني من الله ان تحوز علي
    اعجابكم وان تكون لكم عونا في تعلم الصيانه
    والمخططات وهي منقوله للامانه
    [BB5 - base band 5

    BCC - Base-station Color Code

    B-CDMA - Broadband Code Division Multiple Access

    BCH - Broadcast Channels( carry only downlink information and are mainly responsible for synchronisation and frequency correction (BCCH, FCCH and SCH)

    BCCH - Brodcast Control Channel
    the logical channel used in cellular networks to broadcast signalling and control information to all mobile phones within the network

    BER - Bit Error Rate; the percentage of received bits in error compared to the total number of bits received

    BERT - Bit Error Rate Test


    BGA - ball grid array

    BHCA - Busy Hour Call Attempts( the number of call attempts made during a network’s busiest hour of the day)

    B-ISDN - Broadband ISDN

    BPS - Bits Per Second
    ( a measure of how fast binary digits can be sent through a channel. The number of 0s and 1s that travel down the channel per second.)


    BREW - Binary Runtime Environment for Wireless
    BREW - is an open source application development platform for wireless devices equipped for code division multiple access BREW makes it possible for developers to create portable applications that will work on any handsets equipped with CDMA chipsets. A similar and competing platform is J2ME (**** 2 Micro Edition), from SunMicrosystems.


    BSC - Base Station Controller
    BSS - Base Station System
    Base Station Subsystem
    BSIC - Base Station Identity Code or
    Base transceiver Station Identity Code


    BTS - Base Transceiver Station
    (This device allows communication between phones and cellular network or it is the network entity which communicates with the mobile station)





    Back -light Illumination
    illuminates a wireless device’s display and keypad for better low light viewing
    Band :
    a specific range of frequencies in the radio frequency (RF) spectrum.



    Battery:
    A chargeable device which provides the mobile phone with power. A variety of battery technologies have been used for mobile phones including nickel cadmiu(NiCad),nickel ****l hydride (NiMH) and lithium ion (Li-ion)
    Battery status/Battery charge display
    An indication of the amount of battery life remaining
    Battery Capacity the capacity of wireless devices’ battery. Measured in milliampere hours (mAh).
    __________________


    C1 - path loss-criterium

    C2 - cell-reselection criterion


    Call barring
    A service which enables users to bar certain incoming or outgoing calls on their mobile phones

    Call timer:
    A service which keeps track of the amount of airtime being used by the subscriber on a cumulative basis

    Call divert:
    The capability to divert incoming calls to another phone (fixed or mobile) or to an answering service

    Call hold:
    The ability to put an ongoing call on hold whilst answering or making a second call

    Caller ID:
    Caller Identification (displays the name/number of the person calling a mobile phone. Also known as CLI)

    CAI - Common Air Interface
    ( a standard developed for the UK’s public CT2 networks which enabled the same handset to be used on different networks)

    CAMEL - Customised Application for Mobile network Enhanced Logic
    ( an IN feature in GSM networks that enables users to carry personal services with them when roaming into other networks that support CAMEL)

    CB - Cell Broadcast


    CC - Call Control(manages call connections)

    CCB - Customer Care and Billing

    CCCH - Common Control Channels; a group of uplink and downlink channels between the MS and the BTS (see PCH, AGCH and RACH)


    CCONT- Current Controller (in nokia fones)

    CCS7 - Common Channel Signalling No. 7



    CDMA - Code Division Multiple Access
    (Code Division Multiple Access; also known as spread spectrum (or IS-95), CDMA cellular systems utilise a single frequency band for all traffic, differentiating the individual transmissions by assigning them unique codes before transmission. There are a number of variants of CDMA (see W-CDMA, B-CDMA, TD-SCDMA et al)



    CDMAone:
    The first commercial CDMA cellular system; deployed in North America and Korea; also known as IS-95

    CDMA2000:
    A member of the IMT-2000 3G family; backwardly compatible with cdmaOne

    CDMA 1X:
    The first generation of cdma2000; the standardisation process indicated that there would be CDMA 2X and CDMA 3X but this no longer appears likely

    CDMA 1X EV-DO:
    A variant of CDMA 1X which delivers data only

    CDPD - Cellular Digital Packet Data (a packet switched data service largely deployed in the USA. The service uses idle ****ogue channels to carry the packetised information.)

    CDPSK - Coherent Differential Phase Shift Keying

    CDR - Call Detail Records
    (the record made within the cellular network of all details of both incoming and outgoing calls made by subscribers, The CDR is passed to the billing system for action)


    Cell:
    The area covered by a cellular base station. A cell site may sectorise its antennas to service several cells from one ********Cell site
    The facility housing the transmitters/receivers, the antennas and associated equipment

    Cell splitting:
    The process of converting a single cell to multiple cells by sectorising the antennas in the cell site or constructing additional cells within a cell site



    Cell Site:
    a fixed cellular tower and radio antenna that handles communication with subscribers in a particular area or cell. A cellular network is made up of many cell sites, all connected back to the wired phone system.

    CELP:
    Code Excited Linear Prediction; an ****ogue to digital voice coding scheme, there are a number of variants used in cellular systems



    [SIGPIC][/SIGPIC]
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  • #2
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    افتراضي

    CEPT - Conference of European Posts and Telecommunications.

    (A organisation of national posts, telegraphs and telephone administrations. Until 1988, when this work was take over by ETSI, the main European body for telecommunications standardisation. CEPT established the original GSM standardisation group)

    CF - Call Forwarding

    CI - Carrier to Interference ratio

    CIBER - Cellular Intercarrier Billing Exchange Roamer Record

    CID - Caller Identification

    Circuit switching:

    A method used in telecommunications where a temporary dedicated circuit of constant bandwidth is established between two distant endpoints in a network. Mainly used for voice traffic; the opposite of packet switching

    CLID - Calling Line Identification

    CLIP - Calling Line Identification Presentation
    CLIR - Calling Line Identification Restriction
    CM - Connection Management(it is used to set up, maintain and take down call connections)

    CNR - carrier to noise ratio
    CNT- Content



    COBBA- Common Baseband ****og

    CPE - Customer Premises Equipment; all the equipment on the end user’s side of the network interface

    CPU - Central Processing Unit

    CMOS - Complementary ****l Oxide Substrate


    Codec:
    A word formed by combining coder and decoder the codec is a device which encodes and decodes signals. The voice codec in a cellular network converts voice signals into and back from bit strings. In GSM networks, in addition to the standard voice codec, it is possible to implement Half Rate (HR) codecs and Enhanced Full Rate (EFR) codecs

    Control signal:
    A signal sent to a cellular phone from a base station or vice versa which carries information essential to the call but not including the audio portion of a conversation

    CRC - Cyclic Redundancy Check

    CRM - Customer Relationship Management


    CSE - CAMEL Service Environment

    CSS - Customer Support System

    CT - Cordless Telephony

    CT0:
    Zero generation cordless telephony; the earliest domestic cordless phones which used ****ogue technology and which had severe limitations in terms of range and security


    CT2:
    Second generation cordless telephony;

    CT1:
    First generation cordless telephony; Improved ****ogue phones with greater range and security; a number of European nations produced CT1 standards

    CT2-CAI:
    Second generation cordless telephony-common air interface
    (Using digital technology CT2 phones offered greater range, improved security and a wide range of new functionalities. Used in both domestic and cordless PABX deployments, CT2 was standardised as an interim ETS but was overwhelmed by DECT)

    CTA - Cordless Terminal Adaptor (a DECT term)

    CTM - Cordless Terminal Mobility

    CTR - Common Technical Regulation

    CUG - Closed User Group


    __________________

    D/A - Digital to ****ogue conversion

    DAC - Digital to ****ogue Convertor

    DAMA - Demand Assigned Multiple Access

    D-AMPS - Digital AMPS, a US wireless standard also known as IS-136

    DAN - DECT Access Node



    Data capable:
    Mobile phones which have the capability to enable transmission of data from a laptop computer or PDA via the phone

    Datacable : interface for conecting a mobile fone to pc

    db - decibel (unit if sound)
    DB - Dummy Burst; transmitted as a filler in unused timeslots of the carrier
    DCT /3,4 - digital core technology

    DCT/L - digital core technology linda


    DCCH - Digital Control Channel
    DTCH - Digital Traffic Channel
    DTX - Discontinous Transmission Exchange

    DCA - Dynamic Channel Assignment

    DCCH - Dedicated Control Channels
    ( responsible for roaming, handovers, encryption etc)

    DCE - Data Communications Equipment

    DCH - Data Clearing House

    DCPSK - Differentially Coherent Phase Shift Keying

    DCS1800 - Digital Cellular System at 1800MHz, now known as GSM1800


    DECT - Digitally Enhanced Cordless Telecommunications system, a second generation digital cordless technology standardised by ETSI

    DEPSK - Differential Encoded Phase Shift Keying

    DES - Digital Encryption Standard



    DFSK - Double Frequency Shift Keying


    Digital:
    a method of representing information as numbers with discrete values; usually expressed as a sequence of bits
    Digital a method of encoding a transmission that involves translating information (in the case of digital phones the information would be a voice conversation) into a series of 0’s and 1’s. Digital communications technology offers cleaner calls without the static and distortion that is common with ****og phones. The majority of new handsets sold today are digital rather than ****og technology.




    DPCM - Differential Pulse Code Modulation

    DPSK - Digital Phase Shift Keying

    DQPSK - Digital Quadrature Phase Shift Keying

    DS-CDMA - Direct Sequence CDMA

    DSP - Digital Signal Processor
    Digital Signal Processing refers to manipulating ****og information, such as sound or photographs that has been converted into a digital form to improve accuracy and reliability of digital communications.


    DSC- Digital Signal Controller

    DSRR - Digital Short Range Radio
    ( a UK standard for a low power, short range radio system designed for small voice and data networks)

    DTE - Data Terminal Equipment

    DTMF - Dual Tone MultiFrequency;
    (better know as Touch Tone. The tones generated by touching the keys on the phone are used for a variety of purposes )

    DTX - Discontinuous Transmission

    Dual Band:
    The capability of GSM infrastructure elements and handsets to work across both the 900MHz and 1800MHz bands. The capability to seamlessly handover between the two bands offers operators major capacity gains



    Duplex:
    The wireless technique where one frequency band is used for traffic from the network to the subscriber (the downlink) and another, widely separated, band is used for traffic from the subscriber to the network (the uplink)


    _______
    EDGE - Enhanced Data rates for GSM Evolution
    EDGE Enhanced Data rates for GSM Evolution (EDGE) or Enhanced GPRS (EGPRS), is a digital mobile phone technology that allows for increased data transmission rate and improved data transmission reliability. It is generally classified as a 2.75G network technology. EDGE has been introduced into GSM networks around the world since 2003, initially in North America.

    It can be used for any packet switched applications such as an Internet connection. High-speed data applications such as video services and other multimedia benefit from EGPRS' increased data capacity. EDGE Circuit Switched is a possible future development.



    EEPROM - Electrically Erasable Programmable Read Only Memory

    EFR- Enhanced Full Rate
    (Enhanced Full Rate (codec): an improved version of the standard voice codec used in GSM phones; offers improved speech quality without impacting on network capacity)

    EFT - Electronic Funds Transfer

    EGSM - Extended (frequency range) GSM

    EIR - Equipment Identity Register (a database that contains a list of all valid mobile stations within a network based on their IMEI)

    EIRP - Effective Isotropic Radiated Power

    EPOC :
    The mobile phone operating system developed by Symbian. Derived from epoch-the beginning of an era-EPOC is a 32-bit operating environment which comprises a suite of applications, customisable user interfaces, connectivity options and a range of development tools

    EPROM - Erasable Programmable Read Only Memory

    Erlang:
    A dimensionless unit of average traffic density in a telecommunications network

    ERMES - Enhanced Radio Messaging System
    (IT is a paging technology developed by ETSI which was intended to allow users to roam throughout Europe. Adopted by a number of European and Middle Eastern countries, ERMES, like paging in general, was overtaken by the ubiquity of GSM)

    ERO - European Radiocommunications Office

    ERP - Effective Radiated Power

    ESMR - Enhanced Special Mobile Radio; a US PMR variant (see SMR)

    ESN - Electronic Serial Number; a 32-bit number that uniquely identifies a mobile phone

    ESPRIT - European Strategic Programme for Research and Development in Information Technology

    ETACS
    Extended TACS (the extension of TACS by the addition of new frequencies)

    ETS - European Telecommunications Standard

    ETSI - European Telecommunications Standards Institute: The European group responsible for defining telecommunications standards

    Special thanks for NEILTHIRUMUTTAM
    _
    FACCH - Fast Associated Control Channel

    ( similar to the SDCCH but used in parallel for operation of the TCH. If the data rate of the SACCH is insufficient borrowing mode is used)

    FB - Frequency Correction Burst; used for frequency synchronisation of the mobile

    FCC - Federal Communications Commission; the US regulatory body for telecommunications

    FCCH - Frequency Correction Channel (also Frenquency Control Channel)

    FDD - Frequency Division Duplex

    FDMA - Frequency Division Multiple Access
    (a transmission technique where the assigned frequency band for a network is divided into sub-bands which are allocated to a subscriber for the duration of their calls)

    FEC - Forward Error Correction

    FH - Frequency Hopping

    FH-CDMA - Frequency Hopping CDMA

    FMC - Fixed Mobile Convergence

    FMI - Fixed Mobile Integration

    FPLMTS - Future Public Land Mobile Telecommunications System
    (the original title of the ITU’s third generation concept now known as IMT-2000)

    FRA - Fixed Radio Access; see WLL

    FSDPSK - Filtered Symmetric Differential Phase Shift Keying

    FSK - Frequency Shift Keying
    ( a method of using frequency modulation to send digital information)

    FSOQ - Frequency Shift Offset Quadrature Modulation

    FSS - Fixed Satellite ServiceGb
    (The interface between the PCU and the SGSN in a GSM/GPRS network
    [SIGPIC][/SIGPIC]
    اللهم ذدني علما ونورا واحلل عقدة من لساني

    اخي العضو
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  • #3
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    افتراضي

    FOMA - Freedom Of Mobile multimedia Access

    Special thanks for NEILTHIRUMUTTAM
    _____
    Gc:
    The interface between the GGSN and the HLR in a GSM/GPRS network

    Gd:
    The interface between the SGSN and the SMSC in a GSM/GPRS network

    Gf:
    The interface between the SGSN and the EIR in a GSM/GPRS network

    Gi:
    The interface between the GGSN and the Internet in a GPRS network

    Gn:
    The interface between the GGSN and the SGSN in a GPRS network

    Gp:
    The interfaces between the GGSN/SGSN and the Border Gateway in a GPRS network

    Gr:
    The interface between the SGSN and the HLR in a GPRS network

    Gs:
    The interface between the SGSN and the MSC in a GSM/GPRS network

    GAIT - GSM/ANSI 136 Interoperability Committee

    GAP - Generic Access Profile; a DECT term

    Gbit/s:
    A unit of data transmission rate equal to one billion bits per second

    GMSC - Gateway Mobile Services Switching Centre; the gateway between two networks

    GCF - Global Certification Forum

    Geostationary:
    Refers to a satellite in equatorial orbit above the earth which appears from the surface to be stationary

    GERAN - GSM-EDGE Radio Access Network the name for the evolution of GSM towards 3G based on EDGE

    GGRF - GSM Global Roaming Forum

    GGSN - Gateway GPRS Support Node; the gateway between a cellular network and a IP network.

    GHz:
    A unit of frequency equal to one billion Hertz per second

    GMPCS - Global Mobile Personal Communications by Satellite

    GMSK - Gaussian filtered Minimum Shift Keying

    GPRS:
    General Packet Radio Service (GPRS) is a mobile data service available to users of GSM and IS-136 mobile phones. GPRS data transfer is typically charged per megabyte of transferred data, while data communication via traditional circuit switching is billed per minute of connection time, independently of if the user actually has transferred data or been in an idle state. GPRS can be utilized for services such as WAP access, SMS and MMS, but also for Internet communication services such as email and web access. In the future, it is expected that low cost voice over IP will be made available in cell phones.



    GPS:
    The Global Positioning System (GPS), is currently the only fully-functional satellite navigation system. More than two dozen GPS satellites are in medium Earth orbit, transmitting signals allowing GPS receivers to determine the receiver's ********, speed and direction.



    GRX - GPRS Roaming Exchange

    GSM

    The Global System for Mobile Communications, GSM (original acronym: Groupe Spécial Mobile) is the most popular standard for mobile phones in the world. GSM service is used by over 2 billion people across more than 212 countries and territories.[1][2] The ubiquity of the GSM standard makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world. GSM differs significantly from its predecessors in that both signaling and speech channels are Digital call quality, which means that it is considered a second generation (2G) mobile phone system. This fact has also meant that data communication was built into the system from the 3rd Generation Partnership Project (3GPP).




    GSM MoU - The GSM Memorandum of Understanding
    (an agreement signed between all the major European operators to work together to promote GSM. The precursor of the GSM Association)

    GSM-R : GSM-Railway,
    A variant of GSM designed to meet the special communications needs of international train operators
    Hands-free:
    The operation of a cellular phone without using the handset; usually installed in vehicles.

    Handoff:
    The transfer of control of a cellular phone call in progress from one cell to another, without any discontinuity



    HCS
    Hierarchical Cell Structure; the architecture of a multi-layered cellular network where subscribers are handed over from the macro to the micro to the pico layer depending on the current network capacity and the needs of the subscriber

    HDLC - High level Data Link Control

    HIPERLAN: - High Performance Radio Local Access Network
    (a wireless local area network being standardised by ETSI), (Also HIPERLAN2)

    HLR - Home ******** Register
    ( the database within a GSM network which stores all the subscriber data.A vital element in the roaming process)


    HR - Half Rate Traffic


    HSCSD - High Speed Circuit Switched Data

    ( a special mode in GSM networks which provides higher data throughput By cocatenating a number of timeslots, each delivering 14.4kbit/s, much higher data speeds can be achieved)

    HSPSD - High Speed Packet Switched Data




    HSCSD - High Speed Circuit Switched Data System
    ( this enables the transmission of data over current GSM networks at speeds up to 43.2 kbps. HSCSD enables such high speeds by using multiple channels.)
    IC - Intergrated Circuit
    ICSP - In Circuit Serial Programming
    I-ETS

    IF- Intermediate Frequency

    Interim European Telecommunications Standard

    Infrared data port:
    A facility on a mobile phone to allow information to be exchanged with other devices e.g. a PC using infra red technology

    IN - Intelligent Network

    Internet
    The Internet is the worldwide, publicly accessible network of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked Web pages and other ********s of the World Wide Web
    [SIGPIC][/SIGPIC]
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  • #4
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    افتراضي

    Intranet
    An intranet is a private computer network that uses Internet protocols, network connectivity, and possibly the public telecommunication system to securely share part of an organization's information or operations with its employees. Sometimes the term refers only to the most visible service, the internal website. The same concepts and technologies of the Internet such as clients and servers running on the Internet protocol suite are used to build an intranet. HTTP and other Internet protocols are commonly used as well, especially FTP and e-mail. There is often an attempt to use Internet technologies to provide new interfaces with corporate 'legacy' data and information systems.

    Briefly, an intranet can be understood as "a private version of the Internet", or as a version of the internet confined to an organization.


    IMEI - International Mobile Equipment Identity
    The International Mobile Equipment Identity (IMEI) is a number unique to every GSM and UMTS mobile phone. It is usually found printed on the phone underneath the battery and can also be found by dialing the sequence *#06# into the phone.

    The IMEI number is used by the GSM network to identify valid devices and therefore can be used to stop a stolen phone from accessing the network. For example, if a mobile phone is stolen, the owner can call his or her network provider and instruct them to "ban" the phone using its IMEI number. This renders the phone useless, regardless of whether the phone's SIM is changed.



    I-mode:
    A service developed by Ja*****e operator NTT DoCoMo, I-mode delivers a huge range of services to subscribers and has proved enormously popular with some 30 million regular users. The revenue sharing model used for I-mode is being adopted by other operators as the basis for the new services enabled by GPRS and 3G



    IMSI - International Mobile Subscriber Identity
    (an internal subscriber identity used only by the network)

    IMT-2000:
    The family of third generation technologies approved by the ITU. There are five members of the family: IMT-DS, a direct sequence WCDMA FDD solution IMT-TC, a WCDMA TDD solution IMT-MC, a multicarrier solution developed from cdma2000 IMT-SC, a single carrier solution developed from IS-136/UWC-136 IMT-FT, a TDMA/TDD solution derived from DECT



    INAP - Intelligent Network Application Part



    IP - Internet Protocol

    IPR - Intellectual Property Rights

    IPv6:
    The next generation of IP addressing designed to replace the current system IPv4 which uses a 32 bit address code which limits the number of possible addresses. IPv6 uses a 128 bit code ensuring that the possible number of IP addresses will be virtually limitless

    IrDA - Infra red Data Association

    Iridium:
    A low earth orbit satellite communications system developed initially by Motorola.

    IS-54:
    The first evolution in the USA from ****ogue to digital technology. Used a hybrid of ****ogue and digital technology, superseded by IS-136

    IS-95:
    Cellular standard know also as cdmaOne

    IS-136:
    Cellular standard also known as TDMA or D-AMPS

    ISDN - Integrated Services Digital Network

    ISO
    International Standards Organisation

    ISP - Internet Service Provider



    iTAP:
    software developed by Motorola and built into some wireless phones and PDAs that makes typing words on a keypad easier. The competitor to iTAP is T9

    ITU - International Telecommunications Union

    ITU-R - ITU Telecommunications Radio Sector

    ITU-T - ITU Telecommunications Standardisation Sector

    IWF - Interworking Function
    JAF - Just Another Flasher

    ****:
    A programming language developed by Sun Microsystems **** is characterised by the fact that programs written in **** do not rely on an operating system

    J2ME :
    (**** 2 Micro Edition) is a technology that allows programmers to use the **** programming language and related tools to develop programs for wireless and mobile devices such as cellular phones and personal digital assistants (PDAs). The J2ME platform can be used to implement a wide variety of applications, from wireless games to data portals into the Internet or corporate enterprise databases.


    JPEG- Joint Photographic Experts Group

    JTAG - Joint Test Action Group
    LAI - Local Area Identification

    LAP
    Link Access Protocol

    LAN
    Local Area Network

    LANS
    Local Area Network Services



    LED - Light Emitting Diode
    (a semiconductor device that illuminates when electricity passes through it. Often used as an indicator light, or to spell out words and numbers. LEDs come in many colors, and some LEDs contain multiple elements and are therefore capable of multiple colors. Provides good visibility in direct sunlight and in darkness)



    LEO - Low Earth Orbit
    ( refers to satellites which orbit the Earth at around 1,000 kilometres)


    LPT - Line Print Terminal

    LMSS
    Land Mobile Satellite Service

    Lock
    A function on a cellular phone which, when activated, prevents use of the phone until the user enters a security code

    LCD - Liquid crystal display



    Lithium Ion battery:
    a type of rechargeable battery for cell phones which is generally lighter weight than earlier battery types, has a relatively longer cycle life, and generally does not suffer from “memory” effect.

    Lithium Polymerbattery:
    a battery technology similar to lithium ion but allows the battery to be molded to any shape allowing greater flexibility for mobile phone designers.
    MAC - Media Access Control; the lower sublayer of the OSI system

    MAD - Memory ****og Digital

    MAN - Metropolitan Area Network

    MAP - Mobile Application Part




    Mb- Megabite
    ( a unit of data transmission speed equal to one million bits per second)


    MCC - Mobile Country Code
    MCU - Micro Control Unit

    MCPA - Multi Carrier Power Amplifier

    MeXe - Mobile Execution Environment
    (likely to be based on ****, MeXe enables WAP-enabled devices to offer a wider range of features with greater security and flexibility, as well as greater control of telephony features)

    MFSK - Multiple Frequency Shift Keying


    MHz - Megahertz (a unit of frequency equal to one million Hertz)


    MMI - Man Machine Interface

    MMS - Multimedia Messaging Service
    (an evolution of SMS, MMS goes beyond text messaging offering various kinds of multimedia content including images, audio and video clips)

    MMSK - Modified Minimum Shift Keying
    MNC - Mobile Network Code
    MNO - Mobile Network Operator

    Modulation:
    The process of imposing an information signal on a carrier. This can be done by changing the amplitude (AM), the frequency (FM) or the phase, or any combination of these



    MPEG:
    Motion Picture Experts Group; MPEG4 is a technology for compressing voice and video so that the information can be transmitted over normally difficult links such as mobile radio

    MS - Mobile Station

    MSC - Mobile Switching Centre
    (the switching centre of a mobile phone network, the MSC has interfaces to the BSCs, HLR, VLR and other MSCs)


    MSIN - Mobile Station Identification Number

    MSISDN - Mobile Station International ISDN Number



    MSK - Minimum Shift Keying (Another term for FFSK)

    Multiplexing:
    A telecommunications technique where several channels can be combined to share the same transmission medium. The most common forms are Time Division Multiplexing (TDM) and Frequency Division Multiplexing (FDM)

    MVPN - Mobile Virtual Private Network


    Master Reset:
    restores the setting to factory

    MIDI - Musical Instrument Digital Interface
    (a standard that allows digital musical instruments to communicate with one another. In cell phone terms, MIDI is what gives you polyphonic sounds; which means your ring tones can sound like real music instead of beeps. )

    MMS - Multimedia Messaging Service
    (a further extension of SMS and EMS.MMS is designed to make use of newer and quicker mobile transmission methods such as GPRS, HSCSD, EDGE and UMTS, involving the attachment of multimedia extensions to messages, such as video and sound. An e-mail function is also planned. )

    MO-SMS - Mobile-Originated Short Message Service
    (the ability to send short text messages from a phone. Both the phone and the carrier’s network must support this feature for it to work. Messages can be sent to other phones by phone number. Many phones also allow sending messages directly to e-mail addresses
    N-AMPS
    Narrowband AMPS

    NAM (Number Assignment Module) a circuit chip located inside a phone which stores your telephone number, lock code, timer reset code, network information and other operational data. The NAM is programmed by the service provider when a device is activated. Today’s phones have EPROM type NAM and are keypad programmable.

    NAMPS (Narrowband Advanced Mobile Phone Service) is the next generation of AMPS systems. NAMPS is a cellular call-handling system that uses digital signaling techniques to split the existing channels into three narrowband channels. The result is three times more voice channel capacity than the traditional AMPS system provides.


    NB
    Normal Burst; used to carry traffic and control channels except RACH




    NCC (National Color Code or Network Color Code

    NET
    Norme Europeenne de Telecommunications
    [SIGPIC][/SIGPIC]
    اللهم ذدني علما ونورا واحلل عقدة من لساني

    اخي العضو
    (تشرفنا زيارتك لقسم مدرسةالصيانه)

  • #5
    صديق المنتدى
    الصورة الرمزية احمد دبوس

    الحالة
    غير متواجد
    تاريخ التسجيل
    Aug 2007
    الدولة
    مصر الحبيبه لك الله يامصر
    المشاركات
    2,610
    الشكر
    5,188
    شُكر 4,757 فى 1,307 مشاركة
    تم تذكيره فى
    0 مشاركة
    تمت الاشارة اليه فى
    0 مواضيع
    معدل تقييم المستوى
    120

    افتراضي

    NiMH - Nickel ****l Hydride

    NMSI - National Mobile Subscriber Identity

    NMT: - Nordic Mobile Telephone system
    (an ****ogue cellular technology deployed in the Nordic countries in the late 1970’s; variations were also deployed in the Benelux countries and in Russia. NMT operated in the 450 and 900MHz bands and was the first technology to offer international roaming, albeit only in the Nordic countries)


    Node B:
    The element in a UMTS network which interfaces with the mobile station, ****ogous to a BTS in a GSM network

    No Service:
    An indication on the display of a cellular phone that indicates that the user is in an area where cellular service is unavailable
    OMAP - Open Multimedia Applications Platform


    OMC - Operations and Maintenance Centre
    OMC- S The switching OMC

    OMC-R The radio OMC


    OLED - Organic Light-Emitting Diode

    (a next-generation display technology that consists of small dots of organic polymer that emit light when charged with electricity. OLED is beginning to replace LCD technology in handheld devices such as PDAs and cell phones because the technology is thinner, lighter, brighter, cheaper to manufacture and consumes less power than LED’s.)

    OTA - Over the air activation
    ( the downloading of ring tones, picture messages, and other content to your mobile phone wirelessly. )


    OSI - Open Systems Interconnection; a seven layer model for protocols defined by ISO

    OTP - One Time Programable
    PACS:

    Personal Access Communication System; a digital cordless technology developed initially

    by Bell Labs in the US, PACS was designed to compete with DECT


    PACS
    Personal Access Communication System; a digital cordless technology developed initially

    by Bell Labs in the US, PACS was designed to compete with DECT

    Packet switching
    A communication system wherein the information is transmitted in packets of a set size.

    These packets have address headers and find their way to their destination by the most

    efficient route through the network. Compared to circuit switching where a connection

    is occupied until the traffic exchange is completed, packet switching offers

    considerable efficiencies as connections can be used by a number of users

    simultaneously

    PAMR
    Public Access Mobile Radio; Commercial service using trunking techniques in which

    multiple groups of users can set up their own closed systems within a shared public

    network

    PAP
    Public Access Profile; a DECT term

    PCH
    Paging Channel; downlink only, the MS is informed of incoming calls by the BTS via the

    PCH

    PCM
    Pulse Code Modulation; the standard digital voice format at 64kbit/s

    PCMCIA
    Personal Computer Memory Card Interface Association the body responsible for defining

    the standards and formats for memory expansion cards for laptop computers and PDAs. Now

    extended to cover cards for mobile phones

    PCN
    Personal Communications Network; a designation initially used in the UK to refer to

    networks operating in the 1800MHz band (see also DCS1800). No longer in use

    PCS 1900
    Personal Communications Systems 1900MHz; the terminology used in the US to describe the

    new digital networks being deployed in the 1900MHz band; rarely used today

    PCU
    Packet Control Unit; an element in a GPRS/UMTS network

    PDA
    Personal Digital Assistant

    PDC
    Personal Digital Communications; a digital cellular technology developed and deployed

    uniquely in Japan. A TDMA technology, PDC is incompatible with any other digital

    cellular standard

    PEDC
    Pan European Digital Communications; A designation occasionally used in the early

    1990’s to describe GSM. No longer in use

    Penetration
    The percentage of the total population which owns a mobile phone

    PHS / PHP
    Personal HandyPhone System/Phone; a digital cordless technology developed in Japan

    which achieved great success. Deployed by NTT DoCoMo and other Ja*****e operators PHS

    offered two-way communications, data services and Internet access and eventually won

    some 28 million customers. Now in decline as cellular’s wide area capabilities offer

    better service

    PIN
    Personal Identifier Number

    PKI
    Public Key Infrastructure

    PLMN
    Public Land Mobile Network; any cellular operator’s network

    PMR
    Private Mobile Radiocommunications; two-way radio technology widely used for despatch

    and delivery services, taxi companies and the like. See TETRA

    POCSAG
    Post Office Code Standardisation Group; a now defunct industry grouping which

    standardised pager addressing systems

    PoP
    Points of Presence; a method of measuring the value of a cellular licence; the

    approximate number of potential customers within a geographical area

    POTS
    Plain Old Telephone Service

    PROM
    Programmable Read Only Memory

    PSK
    Phase Shift Keying

    PSRCP
    Public Safety Radio Communications Project; an initiative by the UK Government to

    standardise all emergency services communications on to a single digital technology

    (see TETRA)

    PSDN
    Public Switched Data Network

    PSPDN
    Public Switched Packet Data Network

    PSTN
    Public Switched Telephone Network

    PSU
    Power Supply Unit

    PTO
    Public Telecommunication Operator

    PTT
    Posts, Telephone and Telegraph Administration

    PTT
    Push-to-Talk; a feature of PMR systems

    PWT
    Personal Wireless Telecommunications; a variant of DECT developed for use in the USA


    PCN
    Personal Communications Networks; an outdated term for GSM services in the 1800MHz band

    PDA
    Personal Digital Assistant; a sophisticated handheld device with advanced display

    facilities and a range of business-oriented software programs

    Phone book
    A list of personal names and numbers stored in a mobile phone’s internal memory or in

    the SIM card. These numbers can be called by accessing the appropriate memory and

    making a single key stroke

    PIN
    Personal Identity Number; a number, usually four digits, that must be keyed into a

    mobile phone to make it work. A security measure to prevent unauthorised usage

    P-**** (Personal ****) a **** API and specification for running **** applications on

    small devices.

    Packet a piece of data transmitted over a packet-switching network such as the Internet

    or wireless Internet; a packet includes not just data but also its destination.

    Packet Switching a type of communication that splits information into “packets” of data

    for transmission. This is efficient, as it only uses radio spectrum when it’s actually

    sending something, rather than keeping an open channel at all times (as is done in

    circuit switching). Packet switching is a core component to 3G technology.

    Passive Matrix Display an LCD technology that uses a grid to supply the charge to each

    particular pixel on the display. An STN screen has a slower ******* rate than a TFT

    screen, but it’s cheaper. Also called a SuperTwist Nematic of STN display.

    PC Card (PCMCIA) a removable, credit-card sized devices that may be plugged into slots

    in PCS and wireless communication devices to provide fax or modem functions or network

    cards.

    PCMCIA (Personal Computer Memory Card International Association) a group of hardware

    manufacturers and vendors responsible for developing standards for PC Cards (also

    called PCMCIA cards.)

    PCN:

    also known as DCS 1800 or GSM 1800, PCN is a term used to describe a wireless

    communication technology in Europe and Asia.

    PDA (personal digital assistant) a portable, handheld computing device that acts as an

    electronic organizer. PDAs are typically used for managing addresses, appointments,

    to-do lists and notes, but some newer models support wireless Internet access, e-mail,

    and other interactive applications. Also referred to as Handheld Computers. PDAs come

    in two major flavors - Palm and Pocket PC.

    PIN (Personal Identification Number) a numeric code or password that may be required by

    a service provider in order to make outgoing calls or obtain access to certain

    applications and data. This code is always associated to a SIM card, not a phone and is

    designed to help guard against cellular fraud.

    PTT (Push-To-Talk) a two-way communication service that works like a “walkie talkie”.

    This feature, found on Motorola iDEN phones from Nextel and Telus Mobility’s Mike,

    allow communication in only direction at a time unlike a cell phone that allows for

    simultaneous conversations. New PTT systems are now being introduced that use VoIP

    technology to provide PTT service digitally over 3G data networks

    PUK (Personal Unblocking Code) used to unblock a blocked SIM card, this code is given

    during the sub******ion of a phone

    PWR:
    represents the on/off (power) key on some wireless devices
    RACH - Random Access Channel
    RACE - Research in Advanced Communications in Europe


    RAM - Random Access Memory

    RAP3G- Radio Application Processor 3rd Generations
    RCC - Radio Common Carrier



    Reuse:
    The assignment of frequencies or channels to cells so that adjoining cells do not use the same frequencies and cause interference whereas more distant cells can use the same frequencies. Reuse expands the capacity of a cellular network by enabling the use of the same channels throughout the network




    RELP - Regular pulse Excitation Linear Prediction coding


    RF AMP = Radio Frequency Amplifier

    RFP - Radio Fixed Part
    (*****alent to a base station in a DECT system)

    RNC
    Radio Network Controller; the element which controls the Node Bs within a UMTS network. It is roughly ****ogous to a BSC in a GSM network
    RP - Radio Part

    Roaming:
    A service unique to GSM which enables a subscriber to make and receive calls when outside the service area of his home network e.g. when travelling abroad

    Router:
    A device which forwards information in a network on a connectionless basis

    RRM - Radio Resource Management, part of the UMTS infrastructure

    RT - Remote Terminal

    RX :- signal received
    SIM Simulation
    SIM Simulator
    SIM Sales in Minutes
    SIM Scanning Ion Microscope
    SIM Scientific Instruments Module (Apollo program)
    SIM Screened Images Multimedia, Inc.
    SIM Security Identity Module (cell phone usage)
    SIM Security Information Management
    SIM Security Information Manager
    SIM Selected Ion Monitoring
    SIM Selected Item Management
    SIM Semantic Information Manager
    SIM Sensor Input/Interface Module
    SIM Serial Interface Module
    SIM Serials in Microform
    SIM Service Impact Management (BMC software)
    SIM Service Industry Marketing
    SIM Service Information Message
    SIM Service Interaction Manager
    SIM Serving in Mission
    SIM Systems Integration Management
    تم بحمد الله
    اخيكم في الله
    احمد دبوس
    [SIGPIC][/SIGPIC]
    اللهم ذدني علما ونورا واحلل عقدة من لساني

    اخي العضو
    (تشرفنا زيارتك لقسم مدرسةالصيانه)

  • #6
    صديق المنتدى
    الصورة الرمزية السخاوى

    الحالة
    غير متواجد
    تاريخ التسجيل
    Jun 2008
    الدولة
    .::: Egypt :::.
    العمر
    34
    Phone
    w702
    المشاركات
    15,687
    الشكر
    19,493
    شُكر 21,931 فى 8,763 مشاركة
    تم تذكيره فى
    1 مشاركة
    تمت الاشارة اليه فى
    4 مواضيع
    معدل تقييم المستوى
    989

    افتراضي

    مشكور اخى احمد


    هدفنا راحة العضو الابديه

    متــــــــواجـــــــــد

  • #7
    صديق المنتدى
    الصورة الرمزية HELAL ALI

    الحالة
    غير متواجد
    تاريخ التسجيل
    Mar 2008
    الدولة
    مصـــــــ بحب ــــــــــــــر
    العمر
    35
    Phone
    3310XpressMusic
    المشاركات
    3,585
    الشكر
    6,928
    شُكر 5,706 فى 1,785 مشاركة
    تم تذكيره فى
    0 مشاركة
    تمت الاشارة اليه فى
    0 مواضيع
    معدل تقييم المستوى
    215

    افتراضي

    بارك الله فيك اخى احمد على مجهودك الرائع

  • #8
    .: جيماوي محترف :.
    الصورة الرمزية hashmgoran

    الحالة
    غير متواجد
    تاريخ التسجيل
    Mar 2008
    الدولة
    iraq
    العمر
    36
    Sonork
    100.1647022
    Phone
    samsung s7 edge iPhone 6 plus
    المشاركات
    6,618
    الشكر
    9,958
    شُكر 4,927 فى 2,173 مشاركة
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    2 مواضيع
    معدل تقييم المستوى
    113

    افتراضي

    بارك الله فيك اخي الحبيب على كل ما تقدم من المعلومة المفيدة

  • #9
    من مؤسسي منتدى الجيم فلاش
    الصورة الرمزية Tarek On

    الحالة
    غير متواجد
    تاريخ التسجيل
    Jul 2007
    الدولة
    .:: GeM-FLash ::.
    العمر
    34
    Phone
    Nokia 7900
    المشاركات
    10,546
    الشكر
    10,530
    شُكر 14,973 فى 3,155 مشاركة
    تم تذكيره فى
    0 مشاركة
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    2 مواضيع
    معدل تقييم المستوى
    346

    افتراضي

    بارك الله فيك اخي معلومات رائعة

    تم التثبيت للاهمية والافادة
    التعديل الأخير تم بواسطة Tarek On ; 12-07-2009 الساعة 11:59 PM


    ذكريات لاتُنسى

    http://sec-r1z.com/sec-r1z/misc/whos_online.gif

    My lover GeM FLasH

    .

  • #10
    صديق المنتدى
    الصورة الرمزية احمد دبوس

    الحالة
    غير متواجد
    تاريخ التسجيل
    Aug 2007
    الدولة
    مصر الحبيبه لك الله يامصر
    المشاركات
    2,610
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    5,188
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    120

    افتراضي

    شكرا علي مروركم اخواني وبارك الله فيكم
    [SIGPIC][/SIGPIC]
    اللهم ذدني علما ونورا واحلل عقدة من لساني

    اخي العضو
    (تشرفنا زيارتك لقسم مدرسةالصيانه)

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