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PBX Case Study

Viewing 15 posts - 1 through 15 (of 32 total)
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  • #34634 Reply
    Fugazi
    Guest

    I am currently doing a study of traffic utilisation on a PBX. Can someone please tell me what the term ‘switched traffic’ actually means in english. Cheers.

    #34635 Reply
    supaporn kurdkij
    Guest

    Please, sent about detial to me
    Your sincrely

    #34636 Reply
    gopalakrishnan
    Guest

    i need information about PABX

    #34637 Reply
    J. Den
    Guest

    Could someone tell the difference between PABX and PBX? Do they refer to the same thing?

    #34638 Reply
    Luigimex
    Guest

    PABX Private Automatic Branch Exchange.
    PBX: Private Branch Exhange
    I read some years ago bout differences, I found that PABX is like a small exchange with functions like a Public Exchange, it is oriented to private networks, PBX is a small device that allows to do calls with poor set of features for the lines. At the end of the day I have seen that PABX and PBX becoming the same, because more features are included in the PBX. Hope this could help, more thoughs or corrections are welcome.
    Regards

    #34639 Reply
    Prasanna
    Guest

    PABX means It’s a small exchange where u multplex the lines.Usual combinations for an analog PABx would be 4:16 (means 4 trunk lines,16 extensions), 16:64 so on.

    Here U need to switch the voice depending on the traffic. Again there are blocked / unblocked PABx.
    In case of unblocked PABx no of trunk and extensions are same.

    Normal features of PABx are call transfer,call pick up, conference, callback so on…

    Hope this will help
    Prasanna (pras_dips@indiatimes.com)

    #34640 Reply
    Isinor
    Guest

    In the dark ages long ago you had PABX and a PMBX…
    The A=Automatic ie the elextronic switch.
    The M=Manual ie an operator switched.

    Since operator switching went out 40 years ago people use the term PBX

    #34641 Reply
    Mam
    Guest

    can you please sent me the detail

    #34642 Reply
    Nghiapt80
    Guest

    I need something about PABX and PBX,what is its input and out put.
    Can be the 64K digital line come in PABX. If I need a PBX/16, what is the input? 16 telephone line or a trunk?

    #34643 Reply
    erox
    Guest

    You will need only one 2Mbps PCM link with 30 speech (B-channel) and 1 signalization chanel (D). (ISDN primary access)

    #34644 Reply
    Abbas M. Shah
    Guest

    A Private Branch Exchange (PBX) or a Private Automatic Branch Exchange (PABX – which is out of fashion since all modern day PBXs are automatic), is a phone switch serving a business or organization and is usually located on the organization’s premises. The PBX provides phone services including internal calling, and access to the public switched telephone network. It allows a small number of outside lines to be shared among all of the people of the organization. Advanced PBX phone switches sometimes provide auto-attendant, voice-mail, and ACD (automatic call distribution) services for the organization.

    #34645 Reply
    Cons
    Guest

    we have a project at school, we need to design a PABX. but i dont even know where to strat, i cant find circuit layouts on the books. can someone help me, give me a link or a design of it. we were ask to connect 8 phones to that PABX, thanks

    #34646 Reply
    HENI
    Guest

    I NEED A WORK SYSTEM OF pabx, HOW I CAN GET ONE, BECAUSE I NEED FOR MY FINAL STUDY

    #34647 Reply
    Muzammil
    Guest

    PBX,Private Branch Exchange, as the name implies, its a small private telephone exchange, used in organizations for their internal telephone connections. Its also a basic telephone exchange, implemented in small scale unlike large telephone exchanges, but the basic technologies are going to be the same. Nowadays, almost all pbx’s are digital and so it is basically a digital switch, and so the human (analog)voice is converted in to digital using PCM (Pulse Code Modulation), and the pbx switches the pcm coded information from one time slot to other.

    The digital switching two basic components Time Switch and Space Switch. Time Switch swiches the pcm coded voice between the time slot and space switch switches between the highway.For effective utilization in large and medium scale systems, these two components are combined in several combinations for better results. TST, TSST are the most popular configurations. The below links reveals some of the basics of the digital switching with block diagrams and circuits.

    http://www.s-t.au.ac.th/~joey/Telephony7_2_2002_partone.doc
    http://www.csse.monash.edu.au/~jwb/subjects/cse4891/spc/spc_sw.html

    regds.

    #34648 Reply
    ygo
    Guest

    can you please send me more details about PBX sample diagram coz i can’t ind any. thanks much

Viewing 15 posts - 1 through 15 (of 32 total)
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