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Devilishcode
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hacking

Dataset card Data Studio Files
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 Community
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so often in the phreak world today. He thinks the modern community is
crumbling.
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I hope you enjoyed this phile, look forward to more Phrack Pro-Philes coming in
the near future. And now for the regularly taken poll from all interviewees.
Of the general population of phreaks you have met, would you consider most
phreaks, if any, to be computer geeks? No names mentioned, but yes, a few of
the ones he has met are computer geeks. Thank you for your time, Tuc.
Taran King
Sysop of Metal Shop Private
==Phrack Inc.==
Volume One, Issue Eight, Phile #3 of 9
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% P % The Executioner % P %
% h % % h %
% a % and the % a %
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% t % PhoneLine Phantoms! % t %
% o % - - - % o %
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% s % Present: The City Wide Centrex % s %
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The CWC (City-Wide Centrex) feature provides multiple location large
business customers with centrex features, attendant features, and dialing
capabilities that are transparent across geographic locations and are
independent of the configuration of the #1AESS switches providing the service.
Historically, centrex customers have been somewhat limited to the bounds of the
servicing switch. Customers could be built across switches, but with
limitations. Multiple locations could be arranged to share some features in
common only when placed in a centrex complex served by a single switch.
Obviously, for this to be feasible, the locations had to be geographically near
each other. The CWC feature expands the concept of the centrex group by
allowing a multi-located business to function as a single centrex arrangement
called a CWC group. Although each customer location remains a part of its own
switch with its own individual capabilities, it now functions as part of the
CWC group. Selected centrex features that were defined to operate within the
bounds of a serving switch centrex group are now redefined to operate within
the bounds of the CWC group. The outer boundary of the CWC cannot exceed the
boundary of the LATA due to LCCIS constraints.
The CWC feature provides a comprehensive communications package for a
multiple location centrex customer. Some advantages are:
o Extension to Extension (Intercom) dialing.
o Concentration of private facilities access at one location.
o Elimination of dedicated facilities between locations within the
CWC group.
o Transparency of feature operation across switches.
Use of CCIS trunks to replace tie trunks results in the need for fewer total
trunks and trunk groups. Remote access reduces the total number of customer
trunks required and centralizes customer facilities at one location. All
switches need LCCIS so that information can be passed between locations.
==================
=Intercom Dialing=
==================
Intercom dialing gives the customer the ability to dial extension numbers
(intercom) to other locations. This is done either by dialing the interlocation
intercom number or by a speed call code which contains an interlocation
intercom number. The customer has the option of routing these interlocation
intercom calls via simulated private or public facilities. After determining
the intercom number dialed is in location, the originating office routes the
call to that location. The call is identified in the centrex customer's digit
interpreter tables as an interlocation intercom call and normal interoffice
call processing determines routing. A decision is made as to whether simulated
facilities are used for routing the call based on the location identification
of the called line. If needed, a simulated facility is seized. This is
determined by a distant line status request on the called line at the end of
dialing. The originating offices sends information to the terminating office
identifying the call as interlocation intercom call. The CWC group and
location identifier of the calling party are also sent. This is done by using
the RCLDN (retrieval of calling line directory number) to transmit this
information. The terminating office recognizes as incoming call as such. If the
two-way simulated private facilities are used, the count on facilities at the
terminating office is incremented. The use of 2 way simulated pricate
facilities for a call is based on the location identifier of the calling line
and whether simulated private facilities were used on the outgoing side.
===========================
=Centrex Attendant Console=
===========================
The tie trunks are replaced by CCIS trunks, therefore some changes are
required in the use of the attendant console. The changes are as follows: