tihwlve            @          12             @                     tuelve
                   @  Nortel phone systems   @ 
TWELVE!            @      Alienb1nary        @                     twelve
           
           [ intr0 ]----------------][1]-]
           [-------[ the netw0rk ]--][2]-]
           [-------------[ overview ][-]-]
           [-------------[ diagram  ][-]-]
           [-------------[ glossary ][-]-]
           [-------[ z0nes ]--------][3]-]
           [-------------[ overview ][-]-]
           [-------------[ diagram  ][-]-]
           [-------[ n0des ]--------][4]-]
           [-------------[ overview ][-]-]
           [-------------[ glossary ][-]-]
           [-------[ feat0res ]-----][5]-]
                 
[ intr0 ]

The nortel phone system was developed by northern telecommunications. It's a 
system that uses a main computer, an administrative phone, and regular phones 
as nodes. It's a very useful system, and is increasing in popularity in 
businesses and schools.

[ the netw0rk ]

The network consists of a computer for advanced features, an administrative 
phone which is like a sysop phone, a pbx which handles the extensions, zones 
which handle groups of nodes, and phones for nodes. 

 outside line     other outside line
      !                  !
 main computer···········˙
   :  |
   :  '---- administrative phone -.
   :....                          |
       :                         pbx
       :                     .--' ! '--.
       :                 zone1  zone2 zone3
       :                   |      |    '--- node 1 --- node 2 --- node 3, etc.
       :                   |      |
       ˙···················|······'-------- node 4 --- node 5 --- node 6, etc.
                           |
                           '--------------- node 7 --- node 8 --- node 9, etc.
                           
main computer - this handles the advanced features. It is normally a PC box running
a nortel operating system. The nortel system is essentially a run off DOS. It uses
ascii and ansi, and navigating through it is similar to using cgi forms in lynx.
It's an efficient system, with no added shit to slow it down.

administrative phone - this is where all the calls are filtered through. If the
network has an admin phone, the administrator is capable of disabling features
remotely. When a page comes through, it can be stopped by the administrator, only
through the admin phone.

pbx - it's a fucking pbx. public branch exchange. This is essentially the entire
physical phone network. 

zone - this handles a group of nodes. it's for addressing groups of phones. A zone
can be assigned privaledges. A zone can be disabled through the admin phone. 

node - this is a phone on the network. 

[ z0nes ]

On the nortel network, zones are connected directly to the PBX through the phone
box. There is normally a single outside line, and then a block of about 10 ring
and tip terminals, and then red and black. The nortel switch is connected to the
network. The bell switch, or the phone box is connected to the network, and to the
outside line. This allows the network to call out, and the outside line to call in.

                     phone box
                   .············.
              .---------. .--------.
     network  | o + - o | |  o  o  |    outside line
    .........-| o + - o | | +    - |-........... . .  .    .
            ˙-| o + - o | |  o  o  |-˙
              | o + - o | |        |
              '---------' '--------'
                 nortel       bell
                 
[ n0des ]

Each node is a nortel model phone. It has a few things that a normal phone might
not. There is an LCD screen, Built in CallerID, Speeddial, Features, and Speakerphone. 

The LCD screen is for prompts and CallerID and messages. It displays the Time and Date,
and can even scroll a MOTD. The CallerID message says the extension, the zone, and the
phone number.

The Features button allows the user access to a broad range of programmable features.
It can even access the background music and play it over the speaker.

[ feat0res ]

the nortel system is full of features that can be used to do tasks on and off 
the phone. There's a feature that even allows for paging. I scanned a few at 
my school, and I found some good results. 

ftr - 0          | speeddial 
ftr - 66         | voicecall
ftr - 85         | do not disturb
ftr - #85        | take off do not disturb
ftr - 630        | page all zones
ftr - 63, zone   | paging
ftr - 86         | background music
ftr - #86        | turn off background music
ftr - *7, node   | transfer
ftr - 65         | check voice mail